© Semiconductor Components Industries, LLC, 2013
January, 2013 Rev. 2
1Publication Order Number:
NCP605/D
NCP605, NCP606
500mA, Low IGND, CMOS
LDO Regulator with/without
Enable and with Enhanced
ESD Protection
The NCP605/NCP606 provide in excess of 500 mA of output
current at fixed voltage options or an adjustable output voltage from
5.0 V down to 1.25 V. These devices are designed for space
constrained and portable battery powered applications and offer
additional features such as high PSRR, low noise operation, short
circuit and thermal protection. The devices are designed to be used
with low cost ceramic capacitors and are packaged in the DFN6 3x3.3.
NCP605 is designed without enable pin, NCP606 is designed with
enable pin.
Features
Output Voltage Options:
Adjustable, 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V
Adjustable Output by External Resistors from 5.0 V down to 1.25 V
Current Limit 675 mA
Low IGND (Independent of Load)
$1.5% Output Voltage Tolerance Over All Operating Conditions
(Adjustable)
$2% Output Voltage Tolerance Over All Operating Conditions
(Fixed)
NCP605 Fixed is Direct Replacement LP8345
Typical Noise Voltage of 50 mVrms without a Bypass Capacitor
Enhanced ESD Ratings: 4 kV Human Body Mode (HBM)
200 V Machine Model (MM)
These are PbFree Devices
Typical Applications
Hard Disk Drivers
Notebook Computers
Battery Power Electronics
Portable Instrumentation
Figure 1. NCP605 Typical Application Circuit for Fixed
Version (1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V)
NCP605
(Fixed)
Vin Vout
SENSE
GND
Vout
Vin
Cin Cout
DFN6, 3x3.3
MN SUFFIX
CASE 506AX
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
ORDERING INFORMATION
MARKING
DIAGRAM
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1xxxx
zzz
AYWWG
G
xxxx = P605 or P606
zzz = ADJ, 150, 180, 250, 280,
300, 330, 500
A = Assembly Location
Y = Year
WW = Work Week
G= PbFree Package
(*Note: Microdot may be in either location)
1
2
3
6
5
4
GND
NC
SENSE/ADJ
1
2
3
6
5
4
GND
EN
SENSE/ADJ
GND
GND
NCP605 PIN CONNECTIONS
DFN6 3x3.3mm
NCP606 PIN CONNECTIONS
DFN6 3x3.3mm
(TOP VIEW)
(TOP VIEW)
Vin Vin
Vout
Vin Vin
Vout
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Figure 2. NCP606 Typical Application Circuit for Fixed Version (1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V)
NCP606
(Fixed)
Vin Vout
SENSE
GND
Vout
Vin
Cin Cout
EN
Figure 3. NCP605 Typical Application Circuit for
Adjustable Version (1.25 V < Vout v 5.0 V)
NCP605
(Adjustable)
Vin Vout
ADJ
GND
Vout
Vin
Cin Cout
NCP606
(Adjustable)
Vin Vout
ADJ
GND
Vout
Vin
Cin Cout
Figure 4. NCP606 Typical Application Circuit for
Adjustable Version (1.25 V < Vout v 5.0 V)
EN
Figure 5. NCP605 Typical Application Circuit for
Adjustable Version (Vout = 1.25 V)
NCP605
(Adjustable)
Vin Vout
ADJ
GND
Vout
Cin Cout
Figure 6. NCP606 Typical Application Circuit for
Adjustable Version (Vout = 1.25 V)
NCP606
(Adjustable)
Vin Vout
ADJ
GND
Vout
Cin Cout
EN
Vin Vin
R1
R2
R1
R2
Figure 7. NCP605 Simplified Block
Diagram
Figure 8. NCP606 Simplified Block
Diagram
+
Driver with
Current Limit
Thermal
Shutdown Vref
GND
SENSE/ADJ
Fixed Version Only
Adjustable
Version Only
+
Driver with
Current Limit
Thermal
Shutdown Vref
GND
SENSE/ADJ
Fixed Version Only
Adjustable
Version Only
EN
Vin Vout Vin Vout
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PIN FUNCTION DESCRIPTION
Pin No. Pin Name Description
1 Vin Positive Power Supply Input*
2 GND Power Supply Ground
3 NC/EN NCP605: This Pin is Not Connected
NCP606: This Pin is Enable Input, Active HIGH
4 Vout Regulated Output Voltage
5 SENSE/ADJ Output Voltage Sense Input
Fixed Version: Connect Directly to Output Capacitor
Adjustable Version: Connect to Middle Point of External Resistor Divider
6 Vin Positive Power Supply Input*
EPAD GND Exposed Pad is Connected to Ground
*Pins 1 and 6 must be connected together externally for output current full range operation
ABSOLUTE MAXIMUM RATINGS
Rating Symbol Value Unit
Input Voltage Range (Note 1) Vin 0.3 to 6.5 V
Chip Enable Voltage Range (NCP606 only) VEN 0.3 to 6.5 V
Output Voltage Range Vout 0.3 to 6.5 V
Output Voltage/Sense Input Range, SENSE/ADJ VADJ 0.3 to 6.5 V
ESD Capability Human Body Model
Machine Model
ESD 4000
200
V
Maximum Junction Temperature TJ(MAX) 150 °C
Storage Temperature Range TSTG 65 to 150 °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE: This device series contains ESD Protection and exceeds the following tests:
ESD Human Body Model tested per AECQ100002 (EIA/JESD22A114)
ESD Machine Model tested per AEC 150 mA per JEDEC standard: JESD78Q100003 (EIA/JESD22A115)
Latchup Current Maximum Rating: v 150 mA per JEDEC standard: JESD78.
1. Minimum Vin = (Vout + VDO) or 1.5 V, whichever is higher.
THERMAL CHARACTERISTICS
Rating Symbol Value Unit
Thermal Resistance, JunctiontoAmbient (Note 2) RqJA 75 °C/W
Thermal Resistance, JunctiontoCase RYJC 18 °C/W
2. Soldered on 645 mm2, 1 oz copper area, FR4. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe
Operating Area.
OPERATING RANGES (Note 3)
Rating Symbol Value Unit
Input Voltage (Note 4) Vin 1.5 to 6.0 V
Output Current (Notes 5 and 6) Iout 0 to 675 mA
Junction Temperature TJ40 to 150 °C
Ambient Temperature TA40 to 125 °C
3. Refer to Electrical Characteristics and Application Information for Safe Operating Area.
4. Minimum Vin = (Vout + VDO) or 1.5 V, whichever is higher.
5. Minimum limit valid for fixed versions only. For more details refer to Application Information Section.
6. Maximum limit for Vout = Vout(nom) 10%.
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ELECTRICAL CHARACTERISTICS
Vin = (Vout + 0.5 V) or 1.5 V, whichever is higher, Cin = 1 mF, Cout = 1 mF, for typical values TA = 25°C, for min/max values TA = 40°C to
85°C; unless otherwise noted. (Notes 9 and 10)
Parameter Test Conditions Symbol Min Typ Max Unit
Output voltage (Adjustable Version) Vin = 1.75 V to 6 V
Iout = 1 mA to 500 mA
Vout 1.231
(1.5%)
1.250 1.269
(+1.5%)
V
Output voltage (Fixed Versions) 1.5 V
1.8 V
2.5 V
2.8 V
3.0 V
3.3 V
5.0 V
Vin = (Vout + 0.5 V) to 6 V
Iout = 1 mA to 500 mA
Vout 1.470
1.764
2.450
2.744
2.940
3.234
4.900
(2%)
1.5
1.8
2.5
2.8
3.0
3.3
5.0
1.530
1.836
2.550
2.856
3.060
3.366
5.100
(+2%)
V
Line regulation Vin = (Vout + 0.5 V) to 6 V, Iout = 1 mA Regline 4 10 mV
Load regulation Iout = 1 mA to 500 mA Regload 10 30 mV
Dropout voltage (Adjustable Version)
(Note 9)
VDO = Vin Vout
Vout = 1.25 V
Iout = 500 mA
VDO
450 470
mV
Dropout voltage (Fixed Version)
1.5 V
1.8 V
2.5 V
2.8 V
3.0 V
3.3 V
5.0 V
VDO = Vin (Vout 0.1 V)
Iout = 500 mA
Vout = 0 V to 90% Vout(nom)
VDO
290
250
200
190
180
170
150
360
300
250
240
230
220
200
mV
Disable Current (NCP606 Only) (Note 10) VEN = 0 V IDIS 0.1 1 mA
Ground Current Iout = 1 mA to 500 mA IGND 145 180 mA
Current Limit (Note 11) Vout = Vout(nom) 10 % ILIM 675 mA
Output Short Circuit Current Vout = 0 V ISC 700 1000 1350 mA
Enable Input Threshold Voltage
(NCP606 Only)
Voltage Increasing, Logic High
Voltage Decreasing, Logic Low
High
Low
Vth(EN)
0.9
0.4
V
Turnon Time (Note 11)
1.25 V
1.5 V
1.8 V
2.5 V
2.8 V
3.0 V
3.3 V
5.0 V
Vin = 0 V to (Vout + 0.5 V) or 1.75 V,
whichever is higher
Vout = 0 V to 90% of Vout(nom)
ton
6
6
7
8
10
12
15
30
ms
Enable Time (NCP606 Only) (Note 11)
1.25 V
1.5 V
1.8 V
2.5 V
2.8 V
3.0 V
3.3 V
5.0 V
VEN = From 0 V to Vin tEN
12
12
13
16
18
19
20
30
ms
7. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
8. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TJ = TA = 25°C. Low
duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
9. Maximum dropout voltage is limited to minimum input voltage Vin = 1.7 V recommended for guaranteed operation at maximum output
current.
10.Refer to application information section.
11. Values based on design and/or characterization.
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ELECTRICAL CHARACTERISTICS
Vin = (Vout + 0.5 V) or 1.5 V, whichever is higher, Cin = 1 mF, Cout = 1 mF, for typical values TA = 25°C, for min/max values TA = 40°C to
85°C; unless otherwise noted. (Notes 9 and 10)
Parameter UnitMaxTypMinSymbolTest Conditions
Power Supply Ripple Rejection (Note 11) Iout = 500 mA
Vout = 1.25 V
Vin Vout = 1 V
f = 120 Hz, 0.5 VPP
f = 1 kHz, 0.5 VPP
f = 10 kHz, 0.5 VPP
PSRR
62
55
40
dB
Output Noise Voltage (Note 11) f = 10 Hz to 100 kHz, Vout = 1.25 V Vn50 mVrms
Thermal Shutdown Temperature (Note 11) TSD 175 °C
Thermal Shutdown Hysteresis (Note 11) TSH 10 °C
7. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
8. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TJ = TA = 25°C. Low
duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
9. Maximum dropout voltage is limited to minimum input voltage Vin = 1.7 V recommended for guaranteed operation at maximum output
current.
10.Refer to application information section.
11. Values based on design and/or characterization.
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TYPICAL CHARACTERISTICS
Figure 9. Output Voltage vs. Temperature
(Vout = 1.25 V)
1.231
1.2348
1.2386
1.2424
1.2462
1.25
1.2538
1.2576
1.2614
1.2652
1.269
40 20 0 20 40 60 80 100
TA, AMBIENT TEMPERATURE (°C)
Vout, OUTPUT VOLTAGE (V)
Vin = Vout + 0.5 V = 1.75 V
Vin = 6.0 V
Vout = 1.25 V
Figure 10. Output Voltage vs. Temperature
(Vout = 2.5 V)
2.45
2.46
2.47
2.48
2.49
2.5
2.51
2.52
2.53
2.54
2.55
40 20 0 20 40 60 80 100
TA, AMBIENT TEMPERATURE (°C)
Vout, OUTPUT VOLTAGE (V)
Vin = Vout + 0.5 V = 3.0 V
Vin = 6.0 V
Vout = 2.5 V
Figure 11. Output Voltage vs. Temperature
(Vout = 5.0 V)
4.9
4.92
4.94
4.96
4.98
5
5.02
5.04
5.06
5.08
5.1
40 20 0 20 40 60 80 100
Vout, OUTPUT VOLTAGE (V)
TA, AMBIENT TEMPERATURE (°C)
Vin = 6.0 V
Vin = Vout + 0.5 V = 5.5 V
Figure 12. Dropout Voltage vs. Temperature
(Vout = 2.5 V)
0
30
60
90
120
150
180
210
240
270
300
40 20 0 20 40 60 80 100
VDO, DROPOUT VOLTAGE (mV)
TA, AMBIENT TEMPERATURE (°C)
Iout = 500 mA
Iout = 300 mA
Iout = 150 mA
Figure 13. Dropout Voltage vs. Temperature
(Vout = 5.0 V)
0
20
40
60
80
100
120
140
160
180
200
40 20 0 20 40 60 80 100
TA, AMBIENT TEMPERATURE (°C)
VDO, DROPOUT VOLTAGE (mV)
Iout = 150 mA
Iout = 300 mA
Iout = 500 mA
Figure 14. Ground Current vs. Temperature
80
90
100
110
120
130
140
150
160
170
180
40 200 204060801
0
TA, AMBIENT TEMPERATURE (°C)
IGND, GROUND CURRENT (mA)
Vout = 5.0 V
Vout = 2.5 V
Vout = 1.25 V
Vin = Vout + 0.5 V
Iout = 500 mA
Vout = 5.0 V Vout = 2.5 V
Vout = 5.0 V
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TYPICAL CHARACTERISTICS
Figure 15. Short Circuit Current Limit vs.
Temperature (Vout = 1.25 V)
800
840
880
920
960
1000
1040
1080
1120
1160
1200
40 20 0 20 40 60 80 100
TA, AMBIENT TEMPERATURE (°C)
ISC, SHORT CIRCUIT CURRENT LIM-
IT (mA)
Vin = 1.75 V
Vin = 6.0 V
Figure 16. PSRR vs. Frequency (Vout = 1.25 V)
f, FREQUENCY (Hz)
PSRR (dB)
Vout = 1.25 V
Vin = 2.25 V
Cout = 1.0 mF
TA = 25°C
Iout = 500 mA Iout = 1mA
Figure 17. PSRR vs. Frequency (Vout = 2.5 V)
10 100 1000 10000 100000
PSRR (dB)
f, FREQUENCY (Hz)
Vout = 2.5 V
Vin = 3.5 V
Cout = 1.0 mF
TA = 25°C
Iout = 500 mA Iout = 1mA
Figure 18. Noise Density vs. Frequency
(Vout = 1.25 V)
0
200
400
600
800
1000
1200
1400
1600
10 100 1000 10000 100000
f, FREQUENCY (Hz)
Vn, NOISE DENSITY (nV//HZ)
Vin = Vout + 0.5 V = 1.75 V
Cin = Cout = 1.0 mF
Iout = 500 mA
TA = 25°C
Vn = 47 mVrms
Figure 19. Noise Density vs. Frequency
(Vout = 2.5 V)
0
500
1000
1500
2000
2500
10 100 1000 10000 100000
f, FREQUENCY (Hz)
Vn, NOISE DENSITY (nV//HZ)
Vin = Vout + 0.5 V = 3.0 V
Cin = Cout = 1.0 mF
Iout = 500 mA
TA = 25°C
Vn = 70 mVrms
Figure 20. Load Transient (Vout = 2.5 V)
TIME (40 ms/div)
Vout
200 mV/div
Iout
500 mA/div
Vin = 3.0 V
Vout = 2.5 V
Cout = 10 mF
trise = tfall = 1 ms
TA = 25°C
Vout = 1.25 V
0
10
20
30
40
50
60
70
80
10 100 1000 10000 100000
0
10
20
30
40
50
60
70
80
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TYPICAL CHARACTERISTICS
Figure 21. Line Transient (Vout = 2.5 V)
TIME (20 ms/div)
Vin = 2.5 V
Iout = 500 mA
Cout = 10 mF
trise = tfall = 1 ms
TA = 25°C
Vout
100 mV/div
Vin
500 mV/div
4.0 V
3.0 V
Figure 22. Startup Transient (Vout = 2.5 V)
TIME (10 ms/div)
Vout
1 V/div
Vin
1 V/div
Vout = 2.5 V
Iout = 0 mA
Cout = 10 mF
Vin = 3.0 V
trise = 1 ms
TA = 25°C
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DEFINITIONS
General
All measurements are performed using short pulse low
duty cycle techniques to maintain junction temperature as
close as possible to ambient temperature.
Line Regulation
The change in output voltage for a change in input voltage.
The measurement is made under conditions of low
dissipation or by using pulse techniques such that the
average junction temperature is not significantly affected.
Load Regulation
The change in output voltage for a change in output load
current at a constant temperature.
Dropout Voltage
The input to output differential at which the regulator
output no longer maintains regulation against further
reductions in input voltage. Measured when the output drops
100 mV below its nominal value. The junction temperature,
load current, and minimum input supply requirements affect
the dropout level.
Ground and Disable Currents
Ground Current is the current that flows through the
ground pin when the regulator operates without a load on its
output (IGND). This consists of internal IC operation, bias,
etc. It is actually the difference between the input current
(measured through the LDO input pin) and the output load
current. If the regulator has an input pin that reduces its
internal bias and shuts off the output (enable/disable
function), this term is called the disable current (IDIS).
Current Limit and Short Circuit Current Limit
Current Limit is value of output current by which output
voltage drops by 10% with respect to its nominal value.
Short Circuit Current Limit is output current value
measured with output of the regulator shorted to ground.
PSRR
Power Supply Rejection Ratio is defined as ratio of output
voltage and input voltage ripple. It is measured in decibels
(dB).
Output Noise Voltage
This is the integrated value of the output noise over a
specified frequency range. Input voltage and output load
current are kept constant during the measurement. Results
are expressed in mVrms or nV / Hz.
Turnon and Turnoff Times
Turnon Time is time difference measured during
powerup of the device from the moment when input
voltage reaches 90% of its operating value to the moment
when output voltage reaches 90% of its nominal value at
specific output current or resistive load.
Turnoff Time is time difference measured during
powerdown of the device from the moment when input
voltage drops to 10% of its operating value to the moment
when output voltage drops to 10% of its nominal value at
specific output current or resistive load.
Enable and Disable Times
Enable Time is time difference measured during
powerup of the device from the moment when enable
voltage reaches 90% of input voltage operating value to the
moment when output voltage reaches 90% of its nominal
value at specific output current or resistive load.
Disable Time is time difference measured during
powerdown of the device from the moment when enable
voltage drops to 10% of input voltage operating value to the
moment when output voltage drops to 10% of its nominal
value at specific output current or resistive load.
Line Transient Response
Typical output voltage overshoot and undershoot response
when the input voltage is excited with a given slope.
Load Transient Response
Typical output voltage overshoot and undershoot
response when the output current is excited with a given
slope between noload and fullload conditions.
Thermal Protection
Internal thermal shutdown circuitry is provided to protect
the integrated circuit in the event that the maximum junction
temperature is exceeded. When activated at typically 175°C,
the regulator turns off. This feature is provided to prevent
failures from accidental overheating.
Maximum Package Power Dissipation
The power dissipation level at which the junction
temperature reaches its maximum operating value.
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APPLICATIONS INFORMATION
The NCP605/NCP606 regulator is self*protected with
internal thermal shutdown and internal current limit. Typical
application circuits are shown in Figures 1 to 4.
Input Decoupling (Cin)
A ceramic or tantalum 1.0 mF capacitor is recommended
and should be connected close to the NCP605/NCP606
package. Higher capacitance and lower ESR will improve
the overall line transient response.
Output Decoupling (Cout)
The NCP605/NCP606 is a stable component and does not
require a minimum Equivalent Series Resistance (ESR) for
the output capacitor. The minimum output decoupling value
is 1.0 mF and can be augmented to fulfill stringent load
transient requirements. The regulator works with ceramic
chip capacitors as well as tantalum devices. Larger values
improve noise rejection and load regulation transient
response. Typical characteristics were measured with
Murata ceramic capacitors. GRM219R71E105K (1 mF,
25 V, X7R, 0805) and GRM21BR71A106K (10 mF, 10 V,
X7R, 0805).
NoLoad Regulation Considerations
The NCP605/NCP606 adjustable regulator will operate
properly under conditions where the only load current is
through the resistor divider that sets the output voltage.
However, in the case where the NCP605/NCP606 is
configured to provide a 1.250 V output, there is no resistor
divider. If the part is enabled under noload conditions,
leakage current through the pass transistor at junction
temperatures above 85°C can approach several microamps,
especially as junction temperature approaches 150°C. If this
leakage current is not directed into a load, the output voltage
will rise up to a level approximately 20 mV above nominal.
The NCP605/ NCP606 contains an overshoot clamp
circuit to improve transient response during a load current
step release. When output voltage exceeds the nominal by
approximately 20 mV, this circuit becomes active and
clamps the output from further voltage increase. Tying the
ENABLE pin to Vin (NCP606 only) will ensure that the part
is active whenever the supply voltage is present, thus
guaranteeing that the clamp circuit is active whenever
leakage current is present.
When the NCP606 adjustable regulator is disabled, the
overshoot clamp circuit becomes inactive and the pass
transistor leakage will charge any capacitance on Vout. If no
load is present, the output can charge up to within a few
millivolts of Vin. In most applications, the load will present
some impedance to Vout such that the output voltage will be
inherently clamped at a safe level. A minimum load of
10 mA is recommended.
Unlike LP8345, for NCP605/606 fixed voltage versions
there is no limitation for minimum load current.
Noise Decoupling
The NCP605/NCP606 is a low noise regulator and needs
no external noise reduction capacitor. Unlike other low noise
regulators which require an external capacitor and have slow
startup times, the NCP605/NCP606 operates without a noise
reduction capacitor, has a typical 8 ms turnon time and
achieves a 50 mVrms overall noise level between 10 Hz and
100 kHz.
Enable Operation (NCP606 Only)
The enable pin will turn the regulator on or off. The
threshold limits are covered in the electrical characteristics
table in this data sheet. The turnon/turnoff transient
voltage being supplied to the enable pin should exceed a
slew rate of 10 mV/ms to ensure correct operation. If the
enable function is not to be used then the pin should be
connected to Vin.
Output Voltage Adjust
The output voltage can be adjusted from 1 times (Figure
4) to 4 times (Figure 3) the typical 1.250 V regulation
voltage via the use of resistors between the output and the
ADJ input. The output voltage and resistors are chosen using
Equation 1 and Equation 2.
Vout +1.250ǒ1)
R1
R2Ǔ)ǒIADJ R1Ǔ(eq. 1)
(eq. 2)
R2^
R1
Vout
1.25 *1
Input bias current IADJ is typically less than 150 nA.
Choose R1 arbitrarily to minimize errors due to the bias
current and to minimize noise contribution to the output
voltage. Use Equation 2 to find the required value for R2.
Thermal
As power in the NCP605/NCP606 increases, it might
become necessary to provide some thermal relief. The
maximum power dissipation supported by the device is
dependent upon board design and layout. Mounting pad
configuration on the PCB, the board material, and the
ambient temperature affect the rate of junction temperature
rise for the part. When the NCP605/NCP606 has good
thermal conductivity through the PCB, the junction
temperature will be relatively low with high power
applications. The maximum dissipation the
NCP605/NCP606 can handle is given by:
PD(MAX) +
ƪTJ(MAX) *TAƫ
RQJA
(eq. 3)
Since TJ is not recommended to exceed 125°C (TJ(MAX)),
then the NCP605/NCP606 soldered on 645 mm2, 1 oz
copper area, FR4 can dissipate up to 1.3 W when the ambient
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temperature (TA) is 25°C. See Figure 23 for RqJA versus
PCB area.
The power dissipated by the NCP605/NCP606 can be
calculated from the following equations:
PD[VinǒIGND@IOUTǓ)IoutǒVin *VoutǓ(eq. 4)
or
Vin(MAX) [
PD(MAX) )ǒVout IoutǓ
Iout )IGND
(eq. 5)
0
50
100
150
200
250
0 200 400 600 800
Figure 23. Thermal Resistance vs. Copper Area
COPPER AREA (mm2)
RqJA, (°C/W)
FR4 = 1.0 oz
FR4 = 2.0 oz
Hints
Vin and GND printed circuit board traces should be as
wide as possible. When the impedance of these traces is
high, there is a chance to pick up noise or cause the regulator
to malfunction. Place external components, especially the
output capacitor, as close as possible to the
NCP605/NCP606, and make traces as short as possible.
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ORDERING INFORMATION
Device
Nominal Output
Voltage (V) Marking Package Shipping
NCP605MNADJT2G ADJ P605
ADJ
DFN6
(PbFree)
3000 / Tape & Reel
NCP605MN15T2G 1.5 P605
150
DFN6
(PbFree)
3000 / Tape & Reel
NCP605MN18T2G 1.8 P605
180
DFN6
(PbFree)
3000 / Tape & Reel
NCP605MN25T2G 2.5 P605
250
DFN6
(PbFree)
3000 / Tape & Reel
NCP605MN28T2G 2.8 P605
280
DFN6
(PbFree)
3000 / Tape & Reel
NCP605MN30T2G 3.0 P605
300
DFN6
(PbFree)
3000 / Tape & Reel
NCP605MN33T2G 3.3 P605
330
DFN6
(PbFree)
3000 / Tape & Reel
NCP605MN50T2G 5.0 P605
500
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MNADJT2G ADJ P606
ADJ
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MN15T2G 1.5 P606
150
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MN18T2G 1.8 P606
180
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MN25T2G 2.5 P606
250
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MN28T2G 2.8 P606
280
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MN30T2G 3.0 P606
300
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MN33T2G 3.3 P606
330
DFN6
(PbFree)
3000 / Tape & Reel
NCP606MN50T2G 5.0 P606
500
DFN6
(PbFree)
3000 / Tape & Reel
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
NCP605, NCP606
http://onsemi.com
13
PACKAGE DIMENSIONS
DFN6 3x3.3 MM, 0.95 PITCH
CASE 506AX01
ISSUE O
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
ÇÇÇ
ÇÇÇ
ÇÇÇ
PIN 1
REFERENCE
A
B
C0.15
2X
2X
TOP VIEW
D
E
C0.15
NOTES:
1. DIMENSIONS AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED TERMINAL
AND IS MEASURED BETWEEN 0.25 AND 0.30 mm
FROM TERMINAL.
4. COPLANARITY APPLIES TO THE EXPOSED PAD
AS WELL AS THE TERMINALS.
E2
BOTTOM VIEW
b
0.10
6X
L
13
0.05
CAB
C
D2
4X
e
L1 64
6X
6X
(A3) C
C0.08
6X
C0.10
SIDE VIEW A1
A
SEATING
PLANE
DIM MIN NOM MAX
MILLIMETERS
A0.80 −−− 0.90
A1 0.00 −−− 0.05
A3 0.20 REF
b0.30 −−− 0.40
D3.00 BSC
D2 1.90 −−− 2.10
E3.30 BSC
E2 1.10 −−− 1.30
e0.95 BSC
K0.20 −−− −−−
L0.40 −−− 0.60
(NOTE 3)
K
L1 0.00 −−− 0.15
6X
0.83
2.15
1.35
1
0.50
0.95
PITCH
3.60
DIMENSIONS: MILLIMETERS
6X
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