ZXTR2112FQ
Document number: DS38293 Rev. 1 - 2
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November 2015
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ZXTR2112FQ
60V INPUT, 12V 15mA REGULATOR TRANSISTOR
Description
The ZXTR2112FQ monolithically integrates a transistor, zener diode
and resistor to function as a linear regulator. The device regulates
with a 12V nominal output at 15mA. It is designed for use in high
voltage applications where standard linear regulators cannot be used.
This function is fully integrated into a SOT23 package, minimizing
PCB area and reducing number of components when compared with
a multi-chip discrete solution.
This linear regulator is designed to meet the stringent requirements of
automotive applications.
Applications
Supply voltage regulation for:
24V to 12V Rails
Other Customized Input Rails
Features
Series Linear Regulator Using Emitter-Follower Stage
Input Voltage – 15 to 60V (For Regulated Output Voltage)
Output Voltage – 12V ± 10%
Fully Integrated into a SOT23 Package
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
PPAP Capable (Note 4)
Mechanical Data
Case: SOT23
Case Material: Molded Plastic. “Green” Molding Compound.
UL Flammability Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish - Matte Tin Plated Leads.
Solderable per MIL-STD-202, Method 208
Weight: 0.008 grams (Approximate)
Ordering Information (Notes 4 & 5)
Product
Compliance
Marking
Reel Size (inches)
Tape Width (mm)
Quantity per Reel
ZXTR2112FQ-7
Automotive
2T3
7
8
3,000
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.htmlfor more information about Diodes Incorporated’s definitions of Halogen and Antimony free,"Green"
and Lead-Free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Automotive products are AEC-Q101 qualified and are PPAP capable. Refer to http://www.diodes.com/quality/product_compliance_definitions/.
5. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
Pin Name
Pin Function
VIN
Input Supply
GND
Power Ground
VOUT
Voltage Output
Top View
Pin-Out
Top View
2T3 = Product Type Marking Code
Internal Device
Schematic
SOT23
VIN
VOUT
GND
2T3
VIN VOUT
GND
ZXTR2112
SOT23
ZXTR2112FQ
Document number: DS38293 Rev. 1 - 2
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ZXTR2112FQ
Absolute Maximum Ratings (Voltage relative to GND, @TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Input Voltage
VIN
-0.3 to 60
V
Continuous Input & Output Current
IIN, IOUT
320
mA
Peak Pulsed Input & Output Current
IIM, IOM
2
A
Maximum Voltage applied to VOUT
VOUT(max)
Smaller of VIN+5V or 17V
V
Maximum Current (@VIN = 24V) (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Continuous Output Current
(Note 8)
IOUT
50
mA
Pulsed Output Current
(Note 9)
IOM
2,000
mA
(Note 10)
500
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Power Dissipation
(Note 6)
PD
625
mW
(Note 7)
500
Thermal Resistance, Junction to Ambient
(Note 6)
RθJA
200
°C/W
(Note 7)
250
Thermal Resistance, Junction to Lead
(Note 11)
RθJL
197
Thermal Resistance, Junction to Case
(Note 11)
RθJC
17
Maximum Operating Junction and Storage Temperature Range
TJ, TSTG
-65 to +150
°C
ESD Ratings (Note 12)
Characteristics
Symbols
Value
Unit
JEDEC Class
Electrostatic Discharge – Human Body Model
ESD HBM
4,000
V
3A
Electrostatic Discharge – Machine Model
ESD MM
400
V
C
Notes: 6. For a device mounted with the VIN lead on 25mm x 25mm 1oz copper that is on a single-sided 1.6mm FR4 PCB; device is measured under still air
conditions whilst operating in steady-state.
7. Same as Note 6, except mounted on 15mm x 15mm 1oz copper.
8. Same as Note 6, whilst operating at VIN=24V. Refer to Safe Operating Area for other Input Voltages.
9. Same as Note 6, except measured with a single pulse width = 100µs and VIN=24V.
10. Same as Note 6, except measured with a single pulse width = 10ms and VIN=24V.
11. RθJL = Thermal resistance from junction to solder-point (at the end of the VIN lead). RθJC = Thermal resistance from junction to the top of case.
12. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
ZXTR2112FQ
Document number: DS38293 Rev. 1 - 2
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ZXTR2112FQ
Thermal Characteristics and Derating Information
15 20 30 40 50 60
1
10
100
25mm * 25mm
1oz Cu Board
15mm * 15mm
1oz Cu Board
Safe Operating Area
Input Voltage (V)
Load Current (mA)
Steady state DC
Tamb = 25°C
Transient Thermal Impedance
D=0.5
Thermal Resistance (°C/W)
Pulse Width (s)
Single Pulse
Tamb=25°C
Pulse Power Dissipation
Pulse Width (s)
Max Power Dissipation (W)
100µ 1m 10m 100m 110 100 1k
0
50
100
150
200
250
300
Tamb=25°C
D=0.2
D=0.1
Single Pulse
D=0.05
15mm * 15mm
1oz Cu Board
100µ 1m 10m 100m 110 100 1k
0.1
1
10
100
15mm * 15mm
1oz Cu Board
050 100 150
0.00
0.25
0.50
0.75
25mm * 25mm
1oz Cu Board
15mm * 15mm
1oz Cu Board
Derating Curve
Temperature (°C)
Max Power Dissipation (W)
100µ 1m 10m 100m 110 100 1k
0
50
100
150
200
250
300
Tamb=25°C
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
Thermal Resistance (°C/W)
Pulse Width (s)
25mm * 25mm
1oz Cu Board
100µ 1m 10m 100m 110 100 1k
0.1
1
10
100
25mm * 25mm
1oz Cu Board
Single Pulse
Tamb=25°C
Pulse Power Dissipation
Pulse Width (s)
Max Power Dissipation (W)
ZXTR2112FQ
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ZXTR2112FQ
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Min
Typ
Max
Unit
Test Condition
Output Voltage (Note 13)
VOUT
10.8
12
13.2
V
VIN = 24V, IOUT = 15mA
Line Regulation (Notes 13 & 14)
VOUT
—
20
50
mV
VIN = 18 to 24V, IOUT = 15mA
—
130
—
VIN = 18 to 60V, IOUT = 15mA
—
150
—
VIN = 15 to 60V, IOUT = 15mA
Temperature Coefficient
VOUT/T
—
10.4
—
mV/°C
TJ = -40°C to +125°C
VIN = 24V, IOUT = 15mA
Load Regulation (Notes 13 & 15)
VOUT
—
-30
-190
-100
-300
mV
IOUT = 10 to 20mA, VIN = 24V
IOUT = 0.1 to 50mA, VIN = 24V
Minimum Value of Input Voltage Required to
Maintain Line Regulation
VIN(MIN)
15
—
—
V
—
Quiescent Current
IQ
—
—
160
3,500
360
6,000
µA
VIN = 15V, IOUT = 10µA
VIN = 60V, IOUT = 10µA
Power Supply Rejection Ratio
VIN/VOUT
—
50
—
dB
COUT = 100nF, IOUT = 15mA,
VOUT = 12V, VIN = 15 to 60V, f = 100Hz
Notes: 13. Measured under pulsed conditions. Pulse width ≤ 300μs. Duty cycle ≤ 2%.
14. Line regulation: VOUT= VOUT(@VIN=24V)– VOUT(@VIN = 18V)
VOUT= VOUT(@VIN=60V)– VOUT(@VIN = 15V)
VOUT= VOUT(@VIN=60V)– VOUT(@VIN = 18V)
15. Load regulation: VOUT= VOUT(@IOUT= 20mA)– VOUT(@IOUT= 10mA)
VOUT =VOUT(@IOUT= 50mA)– VOUT(@IOUT = 0.1mA)
Typical Application Circuit
VIN VOUT
GND
ZXTR2112
VIN = 16 to 36V
CIN
1µF 80V COUT
10µF 16V
VOUT = 12V
to µC or IC
Example of a 12V regulated supply from a nominal 24V for powering a Controller IC.
Nominal 24V
Pin Functions
Pin Name
Pin Function
Notes
VIN
Input Supply
Input voltage can vary from -0.3V to 60V with respect to GND; for VOUT regulated then 15V ≤ VIN ≤ 60V. It is
recommended to connect a 1µF capacitor to GND.
GND
Power Ground
This pin should be tied to the system ground.
VOUT
Voltage Output
Outputs a regulated 12V when 15V ≤ VIN ≤ 60V. When VIN < 15V, then VOUT maximum = VIN – 1V.
The pin can be pulled high to a maximum of +17V with respect to GND, or +5V with respect to VIN,
whichever is lower. It is recommended to connect a 10µF capacitor to GND and a minimum of 10µA to be
drawn from VOUT to maintain regulation.
ZXTR2112FQ
Document number: DS38293 Rev. 1 - 2
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ZXTR2112FQ
Typical Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
0.0 10.0µ 20.0µ
0
10
20
30
40
50
60
70
80
0.0 40.0µ 80.0µ 120.0µ 160.0µ
11.0
11.2
11.4
11.6
11.8
12.0
12.2
12.4
12.6
12.8
13.0
.1 10 20 30 40 50
-1200
-800
-400
0
400
800
1200
1600
20 30 40 50 60
-800
-600
-400
-200
0
200
400
600
800
1000
1200
1400
1600
1800
-40 -25 0 25 50 75 100 125 150
-800
-400
0
400
800
1200
1600
20 30 40 50 60
0
1000
2000
3000
4000
10.6
10.8
11.0
11.2
11.4
11.6
11.8
12.0
12.2
12.4
0
20
40
60
80
100
VIN
VIN Input Voltage (V)
VIN =15 to 40V
IOUT= 15mA
Slew Rate=5V/uS
COUT = 100nF
VOUT
VOUT Output Voltage (V)
Line transient response
VIN Input Voltage (V)
Time(s) Time(s)
IOUT
VOUT
IOUT = 0 to 30mA
Slew Rate=1A/uS
COUT = 100nF
VIN =24V
IOUT Output Current (mA)
Load transient response
VIN Input Voltage (V)
Temperature Coefficient (Note 18) Quiescent Current
TJ = 150°C
VOUT Output Voltage (mV)
Load Regulation (Note 17)Line Regulation (Note 16)
VOUT Output Voltage (mV)
VOUT Output Voltage (mV)
TJ = 25°C
TJ = 85°C
VIN = 24V
TJ = -40°C
TJ = 100°C
IOUT Output Current (mA)
TJ = 150°C
TJ = 100°C
TJ = 85°C
TJ = 25°C TJ = -40°C
IOUT = 15mA
IOUT = 15mA
VIN = 24V
Junction temperature (°C)
TJ = 150°C
TJ = 100°C
TJ = 85°C
TJ = 25°C
TJ = -40°C
IOUT = 10µA
IQ Quiescent Current (A)
Notes: 16. Line Regulation ΔVOUT = VOUT – VOUT(@ VIN = 15V, IOUT = 15mA, TJ = +25°C).
17. Load Regulation ΔVOUT = VOUT – VOUT(@ VIN = 24V, IOUT = 0.1mA, TJ = +25°C).
18. Temperature Coefficient ΔVOUT = VOUT – VOUT(@ VIN = 24V, IOUT = 15mA, TJ = +25°C).
ZXTR2112FQ
Document number: DS38293 Rev. 1 - 2
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November 2015
© Diodes Incorporated
ZXTR2112FQ
Package Outline Dimensions
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
J
K1 K
L1
GAUGE PLANE
0.25
H
L
M
All 7°
A
CB
D
G
F
a
SOT23
Dim
Min
Max
Typ
A
0.37
0.51
0.40
B
1.20
1.40
1.30
C
2.30
2.50
2.40
D
0.89
1.03
0.915
F
0.45
0.60
0.535
G
1.78
2.05
1.83
H
2.80
3.00
2.90
J
0.013
0.10
0.05
K
0.890
1.00
0.975
K1
0.903
1.10
1.025
L
0.45
0.61
0.55
L1
0.25
0.55
0.40
M
0.085
0.150
0.110
a
8°
All Dimensions in mm
Dimensions
Value (in mm)
Z
2.9
X
0.8
Y
0.9
C
2.0
E
1.35
XE
Y
C
Z
SOT23
SOT23
ZXTR2112FQ
Document number: DS38293 Rev. 1 - 2
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ZXTR2112FQ
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
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