AZ431L Datasheet, PDF (1/18 Pages) BCD Semiconductor Manufacturing Limited – LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR

Description
A Product Line of
Diodes Incorporated
AZ431L
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
Features
The AZ431L series ICs are low voltage three-terminal adjustable
regulators with guaranteed thermal stability over a full operation
range. These ICs feature sharp turn-on characteristics, low
temperature coefficient and low output impedance, which make them
ideal substitutes for Zener diodes in applications such as switching
power supply, charger, motherboard and other adjustable regulators.
The output voltage can be set to any value between 1.24V and 18V
with two external resistors.
The AZ431L precision reference is offered in two voltage tolerance:
0.5% and 1.0%.
 Wide Programmable Precise Output Voltage from 1.24V to 18V
 High Stability under Capacitive Load
 Low Temperature Deviation: 3mV Typical
 Low Equivalent Full-range Temperature Coefficient: 20PPM/^oC
Typical
 Low Dynamic Output Resistance: 0.05Ω Typical
 High Sink Current Capacity from 0.1mA to 100mA
 Low Output Noise
 Wide Operating Range of -40 to +125^oC
These ICs are available in 4 packages: TO-92 (bulk or ammo
packing), SOT-23, SOT-23-5 and SOT-89.
Applications
 Graphic Card
 PC Motherboard
 Voltage Adapter
 Switching Power Supply
 Charger
Pin Assignments
(Top View)
3 CATHODE
2 ANODE
1 REF
(TO-92 (Bulk Packing)/ Z Package)
(Top View)
3 CATHODE
2 ANODE
1 REF
(TO-92 (Ammo Packing)/ Z Package)
(Top View)
ANODE
3
1
REF
2
CATHODE
(SOT-23/ N Package)
AZ431L
Document number: DS36801 Rev. 3 - 2
1 of 18
www.diodes.com
January 2014
© Diodes Incorporated