Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
General Description
Features
The AZ432 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.
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Wide Programmable Precise Output Voltage from
1.25V to 18V
High Stability under Capacitive Load
Low Temperature Deviation: 3mV Typical
Low Equivalent Full-Range Temperature Coeffi-
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o
cient: 20PPM/ C Typical
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Low Dynamic Output Resistance: 0.05Ω Typical
High Sink Current Capacity from 0.1mA to 100
mA
The output voltage can be set to any value between
1.25V and 18V with two external resistors.
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Low Output Noise
o
Wide Operating Range of -40 to 125 C
The AZ432 precision reference is offered in two volt-
age tolerance: 0.5% and 1.0%.
Applications
These ICs are available in 4 packages: TO-92 (bulk or
ammo packing), SOT-23, SOT-23-5, SOT-89-3.
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Graphic Card
PC Motherboard
Voltage Adapter
Switching Power Supply
Charger
SOT-89-3
TO-92 Ammo Packing
TO-92
SOT-23
SOT-23-5
Figure 1. Package Types of AZ432
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
1
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
