AZ431-B Datasheet, PDF (1/19 Pages) BCD Semiconductor Manufacturing Limited – ADJUSTABLE PRECISION SHUNT REGULATORS

Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
General Description
Features
AZ431-B
The AZ431-B is a three-terminal adjustable shunt regu-
lator with guaranteed thermal stability over a full oper-
ation range. It features sharp turn-on characteristics,
low temperature coefficient and low output impedance,
which make it ideal substitute for Zener diode in appli-
cations such as switching power supply, charger and
other adjustable regulators.
The output voltage of AZ431-B can be set to any value
between V_REF (2.5V) and the corresponding maximum
cathode voltage.
The AZ431-B precision reference is offered in two
voltage tolerance: 0.4% and 0.8%.
This IC is available in 5 packages: TO-92 (bulk or
ammo packing), SOT-23, SOT-23-5, SOT-89-3 and
SOIC-8.
· Programmable Precise Output Voltage from 2.5V
to 18V
· High Stability under Capacitive Load
· Low Temperature Deviation: 4.5mV Typical
· Low Equivalent Full-range Temperature Coeffi-
cient with 20PPM/^oC Typical
· Sink Current Capacity from 1mA to 100mA
· Low Output Noise
· Wide Operating Range of -40 to 125^oC
Applications
· Charger
· Voltage Adapter
· Switching Power Supply
· Graphic Card
· Precision Voltage Reference
SOIC-8
SOT-89-3
TO-92
SOT-23
SOT-23-5
TO-92 Ammo Packing
Mar. 2007 Rev. 2. 4
Figure 1. Package Types of AZ431-B
BCD Semiconductor Manufacturing Limited
1