IRU431LCL3TR International Rectifier, IRU431LCL3TR Datasheet

IC REGULATOR LDO LV ADJ SOT23-3

IRU431LCL3TR

Manufacturer Part Number
IRU431LCL3TR
Description
IC REGULATOR LDO LV ADJ SOT23-3
Manufacturer
International Rectifier
Datasheet

Specifications of IRU431LCL3TR

Reference Type
Shunt, Adjustable
Voltage - Output
1.24 ~ 15 V
Tolerance
±1%
Number Of Channels
1
Current - Cathode
80µA
Current - Output
10mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Voltage - Input
-
Temperature Coefficient
-
Current - Quiescent
-
FEATURES
APPLICATIONS
TYPICAL APPLICATION
PACKAGE ORDER INFORMATION
Rev. 2.0
08/05/03
SOT-23 Packages
Voltage Reference Initial Accuracy (1%)
Low Operating Cathode Current (80mA max)
Unconditionally Stable with only 1mF
Adjustable Output from 1.24V to 15V
0.25V Typical Output Impedance
Pin to Pin Compatible with TLV431
Precision Voltage Reference
Linear Regulator Controller
Secondary Side Controller for the low voltage
power supply applications
Vo = V
Figure 1 - Typical application of the IRU431L as a shunt regulator / voltage reference.
V
IRU431L
IN
REF
3 1 +
(
0 To 70
T
A
R
(°C)
B
R1
R2
)
3-PIN SOT-23 (L3)
LOW -VOLTAGE ADJUSTABLE PRECISION
K (Cathode)
A (Anode)
IRU431LCL3
Ref
www.irf.com
DESCRIPTION
The IRU431L is a three-terminal adjustable shunt regu-
lator that can also be used as a precision voltage refer-
ence. Its output voltage may be set to any value be-
tween V
as shown in the typical application circuit. Other appli-
cations of this device include being used as a merged
amplifier and reference in applications such as a linear
regulator or as the secondary side controller in low volt-
age power supply applications. The IRU431L only re-
quires 80mA maximum quiescent current before regu-
lating, making it ideal as an efficient voltage reference
for battery type applications. The IRU431L has 61%
initial accuracy.
V
R2
R1
REF
REF
5-PIN SOT-23 (L5)
(1.24V) and 15V with two external resistors
IRU431LCL5
SHUNT REGULATOR
C
Data Sheet No. PD94118
O
V
OUT
IRU431L
1

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IRU431LCL3TR Summary of contents

Page 1

FEATURES SOT-23 Packages Voltage Reference Initial Accuracy (1%) Low Operating Cathode Current (80mA max) Unconditionally Stable with only 1mF Adjustable Output from 1.24V to 15V 0.25V Typical Output Impedance Pin to Pin Compatible with TLV431 APPLICATIONS Precision Voltage Reference Linear ...

Page 2

IRU431L ABSOLUTE MAXIMUM RATINGS Input Voltage (V ) .................................................... 15V IN Continuous Cathode Current Range .......................... -15mA to +15mA Reference Current Range .......................................... -0.05mA to 15mA Storage Temperature Range ...................................... -658C to 1508C Operating Junction Temperature Range ..................... CAUTION: Stresses ...

Page 3

The deviation parameters, V and I REF(DEV) fined as the differences between the maximum and the minimum values obtained over the rated temperature range. The average full range temperature coefficient of the reference input voltage is defined as ...

Page 4

IRU431L APPLICATION INFORMATION Output Voltage Setting The IRU431L can be programmed to any voltages in the range of 1.24 to 15V with the addition of R1 and R2 external resistors according to the following formula ...

Page 5

Thermal Design The IRU431L is offered in the surface mount SOT-23 (L) packages. The SOT-23 package has the maximum power dissipation capability of 150mW at T rating factor of -1.2mW / C. The table below summarizes the maximum power dissi- ...

Page 6

IRU431L TYPICAL APPLICATION 12V Ref Desig Description U1 Shunt Regulator C1, C2 Capacitor R1 Resistor R2 Resistor R3, R4 Resistor HS1 Heat Sink IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 ...

Page 7

Rev. 2.0 08/05/03 (L3) SOT-23 Package 3-Pin SYMBOL MIN MAX A 0.890 1.120 A1 0.013 0.100 B 0.370 0.510 C 0.085 0.180 D 2.800 3.040 E 1.200 1.400 e ...

Page 8

IRU431L (L5) SOT-23 Package 5-Pin SYMBOL MIN MAX A 0.90 1.45 A1 0.00 0.15 A2 0.90 1.30 B 0.25 0.50 C 0.09 0.20 D 2.80 3.00 E 2.60 3.00 ...

Page 9

PACKAGE SHIPMENT METHOD PKG PACKAGE DESIG DESCRIPTION L3 SOT-23 L5 SOT- Feed Direction Figure A IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Rev. 2.0 08/05/03 PIN PARTS COUNT PER TUBE 3 ...

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