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FEATURES
APPLICATIONS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
NC
OUTPUT
NC
GND
NC
FEEDBACK
NC
VIN
NC
NC
GND
GND
NC
NC
ON/OFF
N (PDIP) PACKAGE
(TOP VIEW)
KTT (TO-263) PACKAGE
(TOP VIEW)
1
2
3
4
5
GND
ON/OFF
FEEDBACK
GND
OUTPUT
VIN
GND
ON/OFF
FEEDBACK
GND
OUTPUT
VIN
1
2
3
4
5
KV (TO-220 STAGGERED LEADS) PACKAGE
(TOP VIEW) (SIDE VIEW)
Pins 1, 3, 5 Pins 2, 4
NC − No internal connection
DESCRIPTION/ORDERING INFORMATION
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
•Fixed 3.3-V, 5-V, 12-V, and 15-V Options With±5% Regulation (Max) Over Line, Load, andTemperature Conditions•Adjustable Option With a Range of 1.23 V to37 V (57 V for HV Version) and ±4%Regulation (Max) Over Line, Load, andTemperature Conditions•Specified 1-A Output Current•Wide Input Voltage Range …4.75 V to 40 V(60 V for HV Version)•Require Only Four External Components(Fixed Versions) and Use Readily AvailableStandard Inductors•52-kHz (Typ) Fixed-Frequency InternalOscillator
•TTL Shutdown Capability With 50- µA (Typ)Standby Current•High Efficiency …as High as 88% (Typ)•Thermal Shutdown and Current-LimitProtection With Cycle-by-Cycle CurrentLimiting
•Simple High-Efficiency Step-Down (Buck)Regulators
•Pre-Regulators for Linear Regulators•On-Card Switching Regulators•Positive-to-Negative Converters (Buck-Boost)
The TL2575 and TL2575HV greatly simplify the design of switching power supplies by conveniently providing allthe active functions needed for a step-down (buck) switching regulator in an integrated circuit. Accepting a wideinput voltage range of up to 60 V (HV version) and available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, oran adjustable-output version, the TL2575 and TL2575HV have an integrated switch capable of delivering 1 A ofload current, with excellent line and load regulation. The device also offers internal frequency compensation, afixed-frequency oscillator, cycle-by-cycle current limiting, and thermal shutdown. In addition, a manual shutdownis available via an external ON/OFF pin.
The TL2575 and TL2575HV represent superior alternatives to popular three-terminal linear regulators. Due totheir high efficiency, the devices significantly reduce the size of the heatsink and, in many cases, no heatsink isrequired. Optimized for use with standard series of inductors available from several different manufacturers, theTL2575 and TL2575HV greatly simplify the design of switch-mode power supplies by requiring a minimaladdition of only four to six external components for operation.
The TL2575 and TL2575HV are characterized for operation over the virtual junction temperature range of –40 °Cto 125 °C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.PowerPAD, PowerFLEX are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2007, Texas Instruments IncorporatedProducts conform to specifications per the terms of the TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.
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TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
ORDERING INFORMATION
(1)
TL2575 (V
IN(MAX)
= 40 V)
V
OT
J
PACKAGE
(2)
ORDERABLE PART NUMBER TOP-SIDE MARKING(NOM)
PDIP – N Tube of 25 TL2575-33IN TL2575-33IN3.3 V TO-263 – KTT Reel of 500 TL2575-33IKTTR TL2575-33ITO-220 – KV Tube of 50 TL2575-33IKV TL2575-33IPDIP – N Tube of 25 TL2575-05IN TL2575-05IN5 V TO-263 – KTT Reel of 500 TL2575-05IKTTR TL2575-05ITO-220 – KV Tube of 50 TL2575-05IKV TL2575-05IPDIP – N Tube of 25 TL2575-12IN TL2575-12IN–40 °C to 125 °C 12 V TO-263 – KTT Reel of 500 TL2575-12IKTTR TL2575-12ITO-220 – KV Tube of 50 TL2575-12IKV TL2575-12IPDIP – N Tube of 25 TL2575-15IN TL2575-15IN15 V TO-263 – KTT Reel of 500 TL2575-15IKTTR TL2575-15ITO-220 – KV Tube of 50 TL2575-15IKV TL2575-15IPDIP – N Tube of 25 TL2575-ADJIN TL2575-ADJINADJ TO-263 – KTT Reel of 500 TL2575-ADJIKTTR TL2575ADJITO-220 – KV Tube of 50 TL2575-ADJIKV TL2575ADJI
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TIweb site at www.ti.com.(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available atwww.ti.com/sc/package.
ORDERING INFORMATION
(1)
TL2575HV (V
IN(MAX)
= 60 V)
V
OT
J
PACKAGE
(2)
ORDERABLE PART NUMBER TOP-SIDE MARKING(NOM)
PDIP – N Tube of 25 TL2575HV-33IN TL2575HV-33IN3.3 V TO-263 – KTT Reel of 500 TL2575HV-33IKTTR 2BHV-33ITO-220 – KV Tube of 50 TL2575HV-33IKV TL2575HV-33IPDIP – N Tube of 25 TL2575HV-05IN TL2575HV-05IN5 V TO-263 – KTT Reel of 500 TL2575HV-05IKTTR 2BHV-05ITO-220 – KV Tube of 50 TL2575HV-05IKV TL2575HV-05IPDIP – N Tube of 25 TL2575HV-12IN TL2575HV-12IN–40 °C to 125 °C 12 V TO-263 – KTT Reel of 500 TL2575HV-12IKTTR 2BHV-12ITO-220 – KV Tube of 50 TL2575HV-12IKV TL2575HV-12IPDIP – N Tube of 25 TL2575HV-15IN TL2575HV-15IN15 V TO-263 – KTT Reel of 500 TL2575HV-15IKTTR 2BHV-15ITO-220 – KV Tube of 50 TL2575HV-15IKV TL2575HV-15IPDIP – N Tube of 25 TL2575HV-ADJIN TL2575HV-ADJINADJ TO-263 – KTT Reel of 500 TL2575HV-ADJIKTTR 2BHV-ADJITO-220 – KV Tube of 50 TL2575HV-ADJIKV TL2575HVADJI
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TIweb site at www.ti.com.(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available atwww.ti.com/sc/package.
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Internal
Regulator On/Off
_
+
_
+
1.23-V
Band-Gap
Reference 52-kHz
Oscillator Reset Thermal
Shutdown Current
Limit
FEEDBACK
4
CIN
+
VIN
1
Unregulated
DC Input
GND
3
OUTPUT
2
ON/OFF
5
COUT
+
D1 L
O
A
D
VOUT
1-A
Switch
Driver
Fixed-Gain
Error AmplifierComparator
R2
R1
1 kW
3.3 V: R2 = 1.7 kW
5 V: R2 = 3.1 kW
12 V: R2 = 8.84 kW
15 V: R2 = 11.3 kW
ADJ: R1 = Open, R2 = 0 Ω
L1
TL2575-05
7-V to 40-V
Unregulated
DC Input
CIN
100 µF
+
+VIN
1
3 GND 5 ON/OFF
D1
1N5819
OUTPUT
2
L1
330 µH
COUT
330 µF
+
FEEDBACK
45-V
Regulated
Output
1-A Load
L2
20 µH
C1
100 µF+
Optional Output Ripple Filter
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
FUNCTIONAL BLOCK DIAGRAM
A. Pin numbers are for the KTT (TO-263) package.
A. Pin numbers are for the KTT (TO-263) package.
Figure 1. Typical Application Circuit (Fixed Version)
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Absolute Maximum Ratings
(1)
Package Thermal Data
(1)
Recommended Operating Conditions
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
TL2575HV 60V
IN
Supply voltage VTL2575 42ON/OFF input voltage range –0.3 V
IN
VOutput voltage to GND (steady state) –1 VT
J
Maximum junction temperature 150 °CT
stg
Storage temperature range –65 150 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratingsonly, and functional operation of the device at these or any other conditions beyond those indicated under recommended operatingconditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
PACKAGE BOARD θ
JA
θ
JC
θ
JP
(2)
PDIP (N) High K, JESD 51-7 67 °C/W 57 °C/WTO-263 (KTT) High K, JESD 51-5 26.5 °C/W 31.8 °C/W 0.38 °C/WTO-220 (KV) High K, JESD 51-5 26.5 °C/W 31.8 °C/W 0.38 °C/W
(1) Maximum power dissipation is a function of T
J
(max), θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambienttemperature is P
D
= (T
J
(max) – T
A
)/ θ
JA
. Operating at the absolute maximum T
J
of 150 °C can affect reliability.(2) For packages with exposed thermal pads, such as QFN, PowerPAD™, or PowerFLEX™, θ
JP
is defined as the thermal resistancebetween the die junction and the bottom of the exposed pad.
MIN MAX UNIT
TL2575HV 4.75 60V
IN
Supply voltage VTL2575 4.75 40T
J
Operating virtual junction temperature –40 125 °C
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TL2575 Electrical Characteristics
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
I
LOAD
= 200 mA, V
IN
= 12 V for 3.3-V, 5-V, and adjustable versions, V
IN
= 25 V for 12-V version, V
IN
= 30 V for 15-V version(unless otherwise noted) (see Figure 2 )
TL2575PARAMETER TEST CONDITIONS T
J
UNITMIN TYP MAX
V
IN
= 12 V, I
LOAD
= 0.2 A 25 °C 3.234 3.3 3.366TL2575-33 25 °C 3.168 3.3 3.4324.75 V ≤V
IN
≤40 V,0.2 A ≤I
LOAD
≤1 A
Full range 3.135 3.465V
IN
= 12 V, I
LOAD
= 0.2 A 25 °C 4.9 5 5.1TL2575-05 25 °C 4.8 5 5.28 V ≤V
IN
≤40 V,0.2 A ≤I
LOAD
≤1 A
Full range 4.75 5.25V
OUT
Output voltage VV
IN
= 25 V, I
LOAD
= 0.2 A 25 °C 11.76 12 12.24TL2575-12 25 °C 11.52 12 12.4815 V ≤V
IN
≤40 V,0.2 A ≤I
LOAD
≤1 A
Full range 11.4 12.6V
IN
= 30 V, I
LOAD
= 0.2 A 25 °C 14.7 15 15.3TL2575-15 25 °C 14.4 15 15.618 V ≤V
IN
≤40 V,0.2 A ≤I
LOAD
≤1 A
Full range 14.25 15 15.75V
IN
= 12 V, V
OUT
= 5 V,
25 °C 1.217 1.23 1.243I
LOAD
= 0.2 AFeedback voltage TL2575-ADJ V25 °C 1.193 1.23 1.2678 V ≤V
IN
≤40 V, V
OUT
= 5 V,0.2 A ≤I
LOAD
≤1 A
Full range 1.18 1.28TL2575-33 V
IN
= 12 V, I
LOAD
= 1 A 75TL2575-05 V
IN
= 12 V, I
LOAD
= 1 A 77TL2575-12 V
IN
= 15 V, I
LOAD
= 1 A 88ηEfficiency 25 °C %TL2575-15 V
IN
= 18 V, I
LOAD
= 1 A 88V
IN
= 12 V, V
OUT
= 5 V,TL2575-ADJ 77I
LOAD
= 1 A
25 °C 50 100I
IB
Feedback bias current V
OUT
= 5 V (ADJ version only) nAFull range 50025 °C 47 52 58f
o
Oscillator frequency
(1)
kHzFull range 42 6325 °C 0.9 1.2V
SAT
Saturation voltage I
OUT
= 1 A
(2)
VFull range 1.4Maximum duty cycle
(3)
25 °C 93 98 %25 °C 1.7 2.8 3.6I
CL
Switch peak current
(1) (2)
AFull range 1.3 4V
IN
= 40
(4)
, Output = 0 V 2I
L
Output leakage current 25 °C mAV
IN
= 40
(4)
, Output = –1 V 7.5 30I
Q
Quiescent current
(4)
25 °C 5 10 mAI
STBY
Standby quiescent current OFF ( ON/OFF = 5 V) 25 °C 50 200 µA
(1) In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to ∼18 kHz and theminimum duty cycle from 5% to ∼2%. The resulting output voltage drops to ∼40% of its nominal value, causing the average powerdissipated by the IC to lower.(2) Output is not connected to diode, inductor, or capacitor. Output is sourcing current.(3) FEEDBACK is disconnected from output and connected to 0 V.(4) To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V for the adjustable, 3.3-V, and 5-Vversions and to 25 V for the 12-V and 15-V versions.
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TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
TL2575 Electrical Characteristics (continued)I
LOAD
= 200 mA, V
IN
= 12 V for 3.3-V, 5-V, and adjustable versions, V
IN
= 25 V for 12-V version, V
IN
= 30 V for 15-V version(unless otherwise noted) (see Figure 2 )
TL2575PARAMETER TEST CONDITIONS T
J
UNITMIN TYP MAX
25 °C 2.2 1.4ON/OFF high-level logicV
IH
OFF (V
OUT
= 0 V) Vinput voltage
Full range 2.425 °C 1.2 1ON/OFF low-level logicV
IL
ON (V
OUT
= nominal voltage) Vinput voltage
Full range 0.8I
IH
ON/OFF high-level input current OFF ( ON/OFF = 5 V) 25 °C 12 30 µAI
IL
ON/OFF low-level input current ON ( ON/OFF = 0 V) 25 °C 0 10 µA
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TL2575HV Electrical Characteristics
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
I
LOAD
= 200 mA, V
IN
= 12 V for 3.3-V, 5-V, and adjustable versions, V
IN
= 25 V for 12-V version, V
IN
= 30 V for 15-V version(unless otherwise noted) (see Figure 2 )
TL2575HVPARAMETER TEST CONDITIONS T
J
UNITMIN TYP MAX
V
IN
= 12 V, I
LOAD
= 0.2 A 25 °C 3.234 3.3 3.366TL2575HV-33 25 °C 3.168 3.3 3.4504.75 V ≤V
IN
≤60 V,0.2 A ≤I
LOAD
≤1 A
Full range 3.135 3.482V
IN
= 12 V, I
LOAD
= 0.2 A 25 °C 4.9 5 5.1TL2575HV-05 25 °C 4.8 5 5.2258 V ≤V
IN
≤60 V,0.2 A ≤I
LOAD
≤1 A
Full range 4.75 5.275V
OUT
Output voltage VV
IN
= 25 V, I
LOAD
= 0.2 A 25 °C 11.76 12 12.24TL2575HV-12 25 °C 11.52 12 12.5415 V ≤V
IN
≤60 V,0.2 A ≤I
LOAD
≤1 A
Full range 11.4 12.66V
IN
= 30 V, I
LOAD
= 0.2 A 25 °C 14.7 15 15.3TL2575HV-15 25 °C 14.4 15 15.6818 V ≤V
IN
≤60 V,0.2 A ≤I
LOAD
≤1 A
Full range 14.25 15 15.83V
IN
= 12 V, V
OUT
= 5 V,
25 °C 1.217 1.23 1.243I
LOAD
= 0.2 AFeedback voltage TL2575HV-ADJ V25 °C 1.193 1.23 1.2738 V ≤V
IN
≤60 V, V
OUT
= 5 V,0.2 A ≤I
LOAD
≤1 A
Full range 1.180 1.286TL2575HV-33 V
IN
= 12 V, I
LOAD
= 1 A 75TL2575HV-05 V
IN
= 12 V, I
LOAD
= 1 A 77TL2575HV-12 V
IN
= 15 V, I
LOAD
= 1 A 88ηEfficiency 25 °C %TL2575HV-15 V
IN
= 18 V, I
LOAD
= 1 A 88V
IN
= 12 V, V
OUT
= 5 V,TL2575HV-ADJ 77I
LOAD
= 1 A
25 °C 50 100I
IB
Feedback bias current V
OUT
= 5 V (ADJ version only) nAFull range 50025 °C 47 52 58f
o
Oscillator frequency
(1)
kHzFull range 42 6325 °C 0.9 1.2V
SAT
Saturation voltage I
OUT
= 1 A
(2)
VFull range 1.4Maximum duty cycle
(3)
25 °C 93 98 %25 °C 1.7 2.8 3.6I
CL
Switch peak current
(1) (2)
AFull range 1.3 4V
IN
= 60
(4)
, Output = 0 V 2I
L
Output leakage current 25 °C mAV
IN
= 60
(4)
, Output = –1 V 7.5 30I
Q
Quiescent current
(4)
25 °C 5 10 mAI
STBY
Standby quiescent current OFF ( ON/OFF = 5 V) 25 °C 50 200 µA
(1) In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to ∼18 kHz and theminimum duty cycle from 5% to ∼2%. The resulting output voltage drops to ∼40% of its nominal value, causing the average powerdissipated by the IC to lower.(2) Output is not connected to diode, inductor, or capacitor. Output is sourcing current.(3) FEEDBACK is disconnected from output and connected to 0 V.(4) To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V for the adjustable, 3.3-V, and 5-Vversions and to 25 V for the 12-V and 15-V versions.
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TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
TL2575HV Electrical Characteristics (continued)I
LOAD
= 200 mA, V
IN
= 12 V for 3.3-V, 5-V, and adjustable versions, V
IN
= 25 V for 12-V version, V
IN
= 30 V for 15-V version(unless otherwise noted) (see Figure 2 )
TL2575HVPARAMETER TEST CONDITIONS T
J
UNITMIN TYP MAX
25 °C 2.2 1.4ON/OFF high-level logicV
IH
OFF (V
OUT
= 0 V) Vinput voltage
Full range 2.425 °C 1.2 1V
IL
ON/OFF low-level logic input voltage ON (V
OUT
= nominal voltage) VFull range 0.8I
IH
ON/OFF high-level input current OFF ( ON/OFF = 5 V) 12 30 µA25 °CI
IL
ON/OFF low-level input current ON ( ON/OFF = 0 V) 0 10 µA
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TEST CIRCUITS
TL2575-xx
Fixed Output
CIN
100 µF
+
+VIN
1
3 GND 5 D1
2
L1
330 µH
COUT
330 µF
+
4
L
O
A
D
VOUT
VIN
Unregulated
DC Input
CIN = 100 µF, Aluminum Electrolytic
COUT = 330 µF, Aluminum Electrolytic
D1 = Schottky
L1 = 330 µH (for 5-V VIN with 3.3-V VOUT, use 100 mH)
Fixed-Output Voltage
TL2575
(ADJ)
CIN
100 µF
+
+VIN
1
3 GND 5 ON/OFF D1
11DQ06
OUTPUT
2
L1
330 µH
COUT
330 µF
+
FEEDBACK
4
L
O
A
D
VOUT
7-V to 40-V
Unregulated
DC Input
Adjustable-Output Voltage
VOUT = VREF(1 + R2/R1) = 5 V
VREF = 1.23 V
R1 = 2 kW
R2 = 6.12 kW
R2
R1
ON/OFF
OUTPUT
FEEDBACK
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
A. Pin numbers are for the KTT (TO-263) package.
Figure 2. Test Circuits and Layout Guidelines
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TYPICAL CHARACTERISTICS
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0 10 20 30 40 50 60
VIN – Input Voltage – V
Output Voltage Change – %
ILOAD = 200 mA
TJ= 25°C
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
-50 -25 0 25 50 75 100 125 150
TA– Temperature – °C
Output Voltage Change – %
VIN = 20 V
ILOAD = 200 mA
TJ= 25°C
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
-40 -25 -10 5 20 35 50 65 80 95 110 125
TJ– Junction Temperature – °C
Input-Output Differential – V
D
W
V = 5%
R = 0.2
OUT
IND
I = 1 A
LOAD
I = 200 mA
LOAD
0
0.5
1
1.5
2
2.5
3
-50 -25 0 25 50 75 100 125 150
TJ– Junction Temperature – °C
IO– Output Current – A
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
Figure 3. Normalized Output Voltage Figure 4. Line Regulation
Figure 5. Dropout Voltage Figure 6. Current Limit
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0
2
4
6
8
10
12
14
16
18
20
0 10 20 30 40 50 60
VIN – Input Voltage – V
IQ– Quiescent Current – mA
VOUT = 5 V
TJ= 25°C
Measured at GND pin
ILOAD = 1 A
ILOAD = 0.2 A
0
50
100
150
200
250
300
350
400
450
500
-50 -25 0 25 50 75 100 125 150
TJ– Junction Temperature – °C
ISTBY – Standby Quiescent Current – µA
VIN = 40 V
VIN = 12 V
V = 5 V
ON/OFF
-10
-8
-6
-4
-2
0
2
4
6
8
10
-50 -25 0 25 50 75 100 125 150
TJ– Junction Temperature – °C
fNORM – Normalized Frequency – %
VIN = 40 V
VIN = 12 V
Normalized at TJ= 25°C
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
0 0.2 0.4 0.6 0.8 1
ISW – Switch Current – A
VSAT – Saturation Voltage – V
TJ= –40°C
TJ= 25°C
TJ= 125°C
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS (continued)
Figure 7. Quiescent Current Figure 8. Standby Quiescent Current
Figure 9. Oscillator Frequency Figure 10. Switch Saturation Voltage
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0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
-50 -25 0 25 50 75 100 125 150
TJ– Junction Temperature – °C
VIN – Input Voltage – V
Adjustable version only
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
-50 -25 0 25 50 75 100 125 150
TJ– Junction Temperature – °C
IIB – Feedback Bias Current – nA
Adjustable version only
D
B
{
0 A
C
0 A
{
A
0 V
{
{
V = 5 V
OUT
4 µs/Div
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS (continued)
Figure 11. Minimum Operating Voltage Figure 12. FEEDBACK Current
A. Output pin voltage, 10 V/DivB. Output pin current, 1 A/DivC. Inductor current, 0.5 A/DivD. Ouput ripple voltage, 20 mV/Div
Figure 13. Switching Waveforms
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0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
t – Time – ms
ILOAD – Load Current – A
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
t – Time – ms
ILOAD – Load Current – A
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS (continued)
Figure 14. Load Transient Response
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APPLICATION INFORMATION
Input Capacitor (C
IN
)
Output Capacitor (C
OUT
)
Catch Diode
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
For stability concerns, an input bypass capacitor (electrolytic, C
IN
≥47 µF) needs to be located as close aspossible to the regulator. For operating temperatures below –25 °C, C
IN
may need to be larger in value. Inaddition, since most electrolytic capacitors have decreasing capacitances and increasing ESR as temperaturedrops, adding a ceramic or solid tantalum capacitor in parallel increases the stability in cold temperatures.
To extend the capacitor operating lifetime, the capacitor RMS ripple current rating should be:
I
C,RMS
> 1.2(t
on
/T)I
LOAD
where
t
on
/T = V
OUT
/V
IN
{buck regulator} and
t
on
/T = |V
OUT
|/(|V
OUT
| + V
IN
) {buck-boost regulator}
For both loop stability and filtering of ripple voltage, an output capacitor also is required, again in close proximityto the regulator. For best performance, low-ESR aluminum electrolytics are recommended, although standardaluminum electrolytics may be adequate for some applications. Based on the following equation:
Output ripple voltage = (ESR of C
OUT
)×(inductor ripple current)
Output ripple of 50 mV to 150 mV typically can be achieved with capacitor values of 220 µF to 680 µF. LargerC
OUT
can reduce the ripple 20 mV to 50 mV peak to peak. To improve further on output ripple, paralleling ofstandard electrolytic capacitors may be used. Alternatively, higher-grade capacitors such as high frequency, lowinductance, or low ESR can be used.
The following should be taken into account when selecting C
OUT
:•At cold temperatures, the ESR of the electrolytic capacitors can rise dramatically (typically 3 ×nominal valueat –25 °C). Because solid tantalum capacitors have significantly better ESR specifications at coldtemperatures, they should be used at operating temperature lower than –25 °C. As an alternative, tantalumsalso can be paralleled to aluminum electrolytics and should contribute 10% to 20% to the total capacitance.•Low ESR for C
OUT
is desirable for low output ripple. However, the ESR should be greater than 0.05 Ωtoavoid the possibility of regulator instability. Hence, a sole tantalum capacitor used for C
OUT
is mostsusceptible to this occurrence.•The capacitor’s ripple current rating of 52 kHz should be at least 50% higher than the peak-to-peak inductorripple current.
As with other external components, the catch diode should be placed close to the output to minimize unwantednoise. Schottky diodes have fast switching speeds and low forward voltage drops and, thus, offer the bestperformance, especially for switching regulators with low output voltages (V
OUT
< 5 V). If a high-efficiency,fast-recovery, or ultra-fast-recovery diode is used in place of a Schottky, it should have a soft recovery (versusabrupt turn-off characteristics) to avoid the chance of causing instability and EMI. Standard 50-/60-Hz diodes,such as the 1N4001 or 1N5400 series, are not suitable.
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Inductor
Output Voltage Ripple and Transients
Feedback Connection
ON/OFF Input
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
APPLICATION INFORMATION (continued)
Proper inductor selection is key to the performance-switching power-supply designs. One important factor toconsider is whether the regulator is used in continuous mode (inductor current flows continuously and neverdrops to zero) or in discontinuous mode (inductor current goes to zero during the normal switching cycle). Eachmode has distinctively different operating characteristics and, therefore, can affect the regulator performanceand requirements. In many applications, the continuous mode is the preferred mode of operation, since it offersgreater output power with lower peak currents, and also can result in lower output ripple voltage. Theadvantages of continuous mode of operation come at the expense of a larger inductor required to keep inductorcurrent continuous, especially at low output currents and/or high input voltages.
The TL2575 and TL2575HV can operate in either continuous or discontinuous mode. With heavy load currents,the inductor current flows continuously and the regulator operates in continuous mode. Under light load, theinductor fully discharges and the regulator is forced into the discontinuous mode of operation. For light loads(approximately 200 mA or less), this discontinuous mode of operation is perfectly acceptable and may bedesirable solely to keep the inductor value and size small. Any buck regulator eventually operates indiscontinuous mode when the load current is light enough.
The type of inductor chosen can have advantages and disadvantages. If high performance/quality is a concern,then more-expensive toroid core inductors are the best choice, as the magnetic flux is contained completelywithin the core, resulting in less EMI and noise in nearby sensitive circuits. Inexpensive bobbin core inductors,however, generate more EMI as the open core does not confine the flux within the core. Multiple switchingregulators located in proximity to each other are particularly susceptible to mutual coupling of magnetic fluxesfrom each other’s open cores. In these situations, closed magnetic structures (such as a toroid, pot core, orE-core) are more appropriate.
Regardless of the type and value of inductor used, the inductor never should carry more than its rated current.Doing so may cause the inductor to saturate, in which case the inductance quickly drops, and the inductor lookslike a low-value resistor (from the dc resistance of the windings). As a result, switching current rises dramatically(until limited by the current-by-current limiting feature of the TL2575 and TL2575HV) and can result inoverheating of the inductor and the IC itself. Note that different types of inductors have different saturationcharacteristics.
As with any switching power supply, the output of the TL2575 and TL2575HV have a sawtooth ripple voltage atthe switching frequency. Typically about 1% of the output voltage, this ripple is due mainly to the inductorsawtooth ripple current and the ESR of the output capacitor (see note on C
OUT
). Furthermore, the output alsomay contain small voltage spikes at the peaks of the sawtooth waveform. This is due to the fast switching of theoutput switch and the parasitic inductance of C
OUT
. These voltage spikes can be minimized through the use oflow-inductance capacitors.
There are several ways to reduce the output ripple voltage: a larger inductor, a larger C
OUT
, or both. Anothermethod is to use a small LC filter (20 µH and 100 µF) at the output. This filter can reduce the output ripplevoltage by a factor of 10 (see Figure 2 ).
For fixed-voltage options, FEEDBACK must be wired to V
OUT
. For the adjustable version, FEEDBACK must beconnected between the two programming resistors. Again, both of these resistors should be in close proximity tothe regulator, and each should be less than 100 k Ωto minimize noise pickup.
ON/OFF should be grounded or be a low-level TTL voltage (typically <1.6 V) for normal operation. To shut downthe TL2575 or TL2575HV and put it in standby mode, a high-level TTL or CMOS voltage should be supplied tothis pin. ON/OFF should not be left open and safely can be pulled up to V
IN
with or without a pullup resistor.
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Grounding
Layout Guidelines
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
APPLICATION INFORMATION (continued)
The power and ground connections of the TL2575 and TL2575HV must be low impedance to help maintainoutput stability. For the 5-pin packages, both pin 3 and tab are ground, and either connection can be used asthey are both part of the same lead frame. With the 16-pin package, all the ground pins (including signal andpower grounds) should be soldered directly to wide PCB copper traces to ensure low-inductance connectionsand good thermal dissipation.
With any switching regulator, circuit layout plays an important role in circuit performance. Wiring and parasiticinductances, as well as stray capacitances, are subjected to rapidly switching currents, which can result inunwanted voltage transients. To minimize inductance and ground loops, the length of the leads indicated byheavy lines should be minimized. Optimal results can be achieved by single-point grounding (see Figure 2 ) or byground-plane construction. For the same reasons, the two programming resistors used in the adjustable versionshould be located as close as possible to the regulator to keep the sensitive feedback wiring short.
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BUCK REGULATOR DESIGN PROCEDURE
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
PROCEDURE (Fixed Output) EXAMPLE (Fixed Output)
Known: Known:V
OUT
= 3.3 V, 5 V, 12 V, or 15 V V
OUT
= 5 VV
IN(Max)
= Maximum input voltage V
IN(Max)
= 20 VI
LOAD(Max)
= Maximum load current I
LOAD(Max)
= 1 A
1. Inductor Selection (L1) 1. Inductor Selection (L1)
A. From Figure 15 through Figure 18 , select the appropriate inductor A. From Figure 16 (TL2575-05), the intersection of 20-V line andcode based on the intersection of V
IN(Max)
and I
LOAD(Max)
. 1-A line gives an inductor code of L330.
B. From Table 2 , choose the appropriate inductor based on the B. L330 →L1 = 330 µHinductor code. Parts from three well-known inductor manufacturers
Choose from:are given. The inductor chosen should be rated for operation at
34042 (Schott)52-kHz and have a current rating of at least 1.15 ×I
LOAD(Max)
to
PE-52627 (Pulse Engineering)allow for the ripple current. The actual peak current in L1 (in normaloperation) can be calculated as follows:
RL1952 (Renco)I
L1(pk)
= I
LOAD(Max)
+ (V
IN
– V
OUT
)×t
on
/2L1Where t
on
= V
OUT
/V
IN
×(1/f
osc
)
2. Output Capacitor Selection (C
OUT
) 2. Output Capacitor Selection (C
OUT
)
A. The TL2575 control loop has a two-pole two-zero frequency A. C
OUT
= 100- µF to 470- µF, standard aluminum electrolyticresponse. The dominant pole-zero pair is established by C
OUT
andL1. To meet stability requirements while maintaining an acceptableoutput ripple voltage (V
ripple
≈0.01 ×V
OUT
), the recommended rangefor a standard aluminum electrolytic C
OUT
is between 100 µF and470 µF.
B. C
OUT
should have a voltage rating of at least 1.5 ×V
OUT
. But if a B. Although a C
OUT
rated at 8 V is sufficient for V
OUT
= 5 V, alow output ripple voltage is desired, choose capacitors with a higher-voltage capacitor is chosen for its typically lower ESR (andhigher-voltage ratings than the minimum required, due to their hence lower output ripple voltage) →Capacitor voltagetypically lower ESRs. rating = 20 V.
3. Catch Diode Selection (D1) (see Table 1 ) 3. Catch Diode Selection (D1) (see Table 1 )
A. In normal operation, the catch diode requires a current rating of A. Pick a diode with 3-A rating.at least 1.2 ×I
LOAD(Max)
. For the most robust design, D1 should berated to handle a current equal to the TL2575 maximum switch peakcurrent; this represents the worst-case scenario of a continuousshort at V
OUT
.
B. The diode requires a reverse voltage rating of at least B. Pick 30-V rated Schottky diode (1N5821, MBR330, 31QD03, or1.25 ×V
IN(Max)
. SR303) or 100-V rated Fast Recovery diode (31DF1, MURD310, orHER302).
4. Input Capacitor (C
IN
) 4. Input Capacitor (C
IN
)An aluminum electrolytic or tantalum capacitor is needed for input C
IN
= 100 µF, 25 V, aluminum electrolyticbypassing. Locate C
IN
as close to the V
IN
and GND pins aspossible.
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V = V
OUT REF 1 + where V = 1.23 V
REF
(
(
R2
R1
(
(
R2 = R1 – 1
VOUT
VREF
C 7758
OUT ³(µF)
VIN(Max)
V L1(µH)
OUT ·
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
PROCEDURE (Adjustable Output) EXAMPLE (Adjustable Output)
Known: Known:V
OUT(Nom)
V
OUT
= 10 VV
IN(Max)
= Maximum input voltage V
IN(Max)
= 25 VI
LOAD(Max)
= Maximum load current I
LOAD(Max)
= 1 A
1. Programming Output Voltage (Selecting R1 and R2) 1. Programming Output Voltage (Selecting R1 and R2)Referring to Fig. 2, V
OUT
is defined by: Select R1 = 1 k ΩR2 = 1 (10/1.23 – 1) = 7.13 k ΩSelect R2 = 7.15 k Ω(closest 1% value)Choose a value for R1 between 1 k Ωand 5 k Ω(use 1% metal-filmresistors for best temperature coefficient and stability over time).
2. Inductor Selection (L1) 2. Inductor Selection (L1)
A. Calculate the "set" volts-second (E •T) across L1: A. Calculate the "set" volts-second (E •T) across L1:E•T = (V
IN
– V
OUT
)×t
on
E•T = (25 – 10) ×(10/25) ×(1000/52) [V • µ s]E•T = (V
IN
– V
OUT
)×(V
OUT
/V
IN
)×{1000/f
osc
(in kHz)} [V • µ s] E •T = 115 V • µ sNOTE: Along with I
LOAD
, the "set" volts-second (E •T) constantestablishes the minimum energy storage requirement for theinductor.
B. Using Figure 19 , select the appropriate inductor code based on B. Using Figure 19 , the intersection of 115 V • µ s and 1 Athe intersection of E •T value and I
LOAD(Max)
. corresponds to an inductor code of H470.
C. From Table 2 , choose the appropriate inductor based on the C. H470 →L1 = 470 µFinductor code. Parts from three well-known inductor manufacturers
Choose from:are given. The inductor chosen should be rated for operation at
34048 (Schott)52-kHz and have a current rating of at least 1.15 x I
LOAD(Max)
to
PE-53118 (Pulse Engineering)allow for the ripple current. The actual peak current in L1 (in normaloperation) can be calculated as follows:
RL1961 (Renco)I
L1(pk)
= I
LOAD(Max)
+ (V
IN
– V
OUT
)×t
on
/2L1Where t
on
= V
OUT
/V
IN
×(1/f
osc
)
3. Output Capacitor Selection (C
OUT
) 3. Output Capacitor Selection (C
OUT
)
A. The TL2575 control loop has a two-pole two-zero frequency A.C
OUT
≥7785 ×25/(10 ×470) [ µF]response. The dominant pole-zero pair is established by C
OUT
and
C
OUT
≥41.4 µFL1. To meet stability requirements, C
OUT
must meet the following
To obtain an acceptable output voltage ripple →requirement:
C
OUT
= 220 µF electrolytic
However, C
OUT
may need to be several times larger than thecalculated value above in order to achieve an acceptable outputripple voltage of ~0.01 ×V
OUT
.
B. C
OUT
should have a voltage rating of at least 1.5 ×V
OUT
. But if alow output ripple voltage is desired, choose capacitors with a highervoltage ratings than the minimum required due to their typicallylower ESRs.
4. Catch Diode Selection (D1) (see Table 1 ) 4. Catch Diode Selection (D1) (see Table 1 )
A. In normal operation, the catch diode requires a current rating of A. Pick a diode with a 3-A rating.at least 1.2 ×I
LOAD(Max)
. For the most robust design, D1 should berated for a current equal to the TL2575 maximum switch peakcurrent; this represents the worst-case scenario of a continuousshort at V
OUT
.
B. The diode requires a reverse voltage rating of at least B. Pick a 40-V rated Schottky diode (1N5822, MBR340, 31QD04, or1.25 ×V
IN(Max)
. SR304) or 100-V rated Fast Recovery diode (31DF1, MURD310, orHER302)
5. Input Capacitor (C
IN
) 5. Input Capacitor (C
IN
)An aluminum electrolytic or tantalum capacitor is needed for input C
IN
= 100 µF, 35 V, aluminum electrolyticbypassing. Locate C
IN
as close to V
IN
and GND pins as possible.
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Inductor Value Selection Guide for Continuous-Mode Operation
TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
Figure 15. TL2575-33 Figure 16. TL2575-50
Figure 17. TL2575-12 Figure 18. TL2575-15
Figure 19. TL2575-ADJ
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TL2575 , TL2575HV1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
Table 1. Diode Selection Guide
SCHOTTKY FAST RECOVERYV
R
1A 3A 1A 3A
1N5817 1N582020 V MBR120P MBR320SR102 SR3021N5818 1N5821MBR130P MBR33030 V
11DQ03 31DQ03SR103 SR303
The following diodes The following diodes1N5819 IN5822 are all rated to 100 V: are all rated to 100 V:MBR140P MBR340 11DF1 31DF140 V
11DQ04 31DQ04 MUR110 MURD310SR104 SR304 HER102 HER302MBR150 MBR35050 V 11DQ05 31DQ05SR105 SR305MBR160 MBR36060 V 11DQ06 31DQ06SR106 SR306
Table 2. Inductor Selection by Manufacturer's Part Number
INDUCTOR VALUE SCHOTT RENCOINDUCTOR CODE PULSE ENGINEERING
(2)(µH) CORPORATION
(1)
ELECTRONICS
(3)
L100 100 67127000 PE-92108 RL2444L150 150 67127010 PE-53113 RL1954L220 220 67127020 PE-52626 RL1953L330 330 67127030 PE-52627 RL1952L470 470 67127040 PE-53114 RL1951L680 680 67127050 PE-52629 RL1950H150 150 67127060 PE-53115 RL2445H220 220 67127070 PE-53116 RL2446H330 330 67127080 PE-53117 RL2447H470 470 67127090 PE-53118 RL1961H680 680 67127100 PE-53119 RL1960H1000 1000 67127110 PE-53120 RL1959H1500 1500 67127120 PE-53121 RL1958H2200 2200 67127130 PE-53122 RL2448
(1) Schott Corporation, (612) 475-1173, 1000 Parkers Lake Rd., Wayzata, MN 55391(2) Pulse Engineering, (619) 674-8100, P.O. Box 12236, San Diego, CA 92112(3) Renco Electronics Inc., (516) 586-5566, 60 Jeffryn Blvd. East, Deer Park, NY 11729
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PACKAGE OPTION ADDENDUM
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Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
TL2575-05IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-05IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-05IKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575-05IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-05INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-12IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-12IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-12IKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575-12IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-12INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-15IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-15IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-15IKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575-15IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-15INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-33IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-33IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-33IKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575-33IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-33INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-ADJIKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575-ADJIKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
PACKAGE OPTION ADDENDUM
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Addendum-Page 2
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
TL2575-ADJIKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575-ADJIN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575-ADJINE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575HV-05IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575HV-05IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575HV-05IKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575HV-05IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575HV-05INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575HV-12IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575HV-12IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575HV-12IKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575HV-12IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575HV-12INE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
TL2575HV-15IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575HV-15IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575HV-15IKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
TL2575HV-15IN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPD N / A for Pkg Type Request Free Samples
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TL2575HV-33IKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
TL2575HV-33IKTTRG3 ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
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TL2575HV-ADJIKTTR ACTIVE DDPAK/
TO-263 KTT 5 500 Green (RoHS
& no Sb/Br) CU SN Level-3-245C-168 HR Request Free Samples
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Orderable Device Status (1) Package Type Package
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TL2575HV-ADJIKV ACTIVE TO-220 KV 5 50 Pb-Free (RoHS) CU SN N / A for Pkg Type Request Free Samples
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(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
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provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
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TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
TL2575-05IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575-12IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575-15IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575-33IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575-ADJIKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575HV-05IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575HV-12IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575HV-15IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575HV-33IKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
TL2575HV-ADJIKTTR DDPAK/
TO-263 KTT 5 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2
PACKAGE MATERIALS INFORMATION
www.ti.com 22-Jun-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
TL2575-05IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575-12IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575-15IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575-33IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575-ADJIKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575HV-05IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575HV-12IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575HV-15IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575HV-33IKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
TL2575HV-ADJIKTTR DDPAK/TO-263 KTT 5 500 340.0 340.0 38.0
PACKAGE MATERIALS INFORMATION
www.ti.com 22-Jun-2012
Pack Materials-Page 2
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