IRU431ALCL3TR Vishay, IRU431ALCL3TR Datasheet

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IRU431ALCL3TR

Manufacturer Part Number
IRU431ALCL3TR
Description
IC REGULATOR LDO LV ADJ SOT-23
Manufacturer
Vishay
Datasheet

Specifications of IRU431ALCL3TR

Reference Type
Shunt, Adjustable
Voltage - Output
1.24 ~ 15 V
Tolerance
±0.5%
Number Of Channels
1
Current - Cathode
55µA
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. 1.8
02/20/02
SOT-23 Packages
Voltage Reference Initial Accuracy
(1% for IRU431L and 0.5% for IRU431AL)
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
Figure 1 - Typical application of the IRU431L as a shunt regulator / voltage reference.
Vo = V
V
IN
IRU431L
REF
3o o 1 +
0 To 70
0 To 70
T
A
R
(°C)
B
R1
R2
p p
5-PIN SOT-23 (L5)
LOW -VOLTAGE ADJUSTABLE PRECISION
IRU431LCL5
IRU431ALCL5
www.irf.com
DESCRIPTION
The IRU431L family are three-terminal adjustable shunt
regulators that can also be used as precision voltage
references. Its output voltage may be set to any value
between V
tors as shown in the typical application circuit. Other
applications 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 voltage power supply applications. The IRU431L only
requires 80mA maximum quiescent current before regu-
lating, making it ideal as a voltage reference for battery
type applications. The IRU431L has 61% initial accu-
racy while IRU431AL provides 60.5% initial accuracy.
R1
R2
3-PIN SOT-23 (L3)
REF
IRU431LCL3
IRU431ALCL3
(1.24V) and 15V with two external resis-
IRU431L / IRU431AL
SHUNT REGULATOR
Co
Data Sheet No. PD94118
V
OUT
1

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IRU431ALCL3TR Summary of contents

Page 1

FEATURES SOT-23 Packages Voltage Reference Initial Accuracy (1% for IRU431L and 0.5% for IRU431AL) 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 ...

Page 2

IRU431L / IRU431AL ABSOLUTE MAXIMUM RATINGS Input Voltage (V ) .................................................... 15V IN Continuous Cathode Current Range .......................... -15mA To +15mA Reference Current Range .......................................... -0.05mA To 1mA Storage Temperature Range ...................................... -658C To 1508C Operating Junction Temperature Range ..................... ...

Page 3

Note 2: The dynamic impedance when V fined as KA0 DI K PIN DESCRIPTIONS SOT-23 SOT-23 3-PIN 5-PIN PIN# PIN SYMBOL PIN Ref 3 2 Cathode 5 3 Anode ...

Page 4

IRU431L / IRU431AL 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 / IRU431AL 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: ...

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