AN431 Datasheet, PDF (1/14 Pages) BCD Semiconductor Manufacturing Limited – ADJUSTABLE PRECISION SHUNT REGULATORS

Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
General Description
Features
AN431
The AN431 series ICs are three-terminal adjustable _{· Programmable Precise Output Voltage from 2.5V}
shunt regulators with guaranteed thermal stability over
to 36V
a full operation range. These ICs feature sharp turn-on _{· High Stability under Capacitive Load}
characteristics, low temperature coefficient and low _{· Low Temperature Deviation: 4.5mV Typical}
output impedance, which make them ideal substitutes _{· Low Equivalent Full-range Temperature Coeffi-}
for Zener diodes in applications such as switching
power supply, charger and other adjustable regulators.
cient with 20PPM/^oC Typical
· Low Dynamic Output Resistance: 0.15Ω Typical
The output voltage of these ICs can be set to any value ^{· Sink Current Capacity from 1mA to 100mA}
between V_REF (2.5V) and the maximum cathode volt- · Low Output Noise
age (36V).
· Wide Operating Range of -40 to 125^oC
The AN431 precision reference is offered in two volt-
age tolerance: 0.5% and 1.0%.
These ICs are available in SOT-23 package.
Applications
· Charger
· Voltage Adapter
· Switching Power Supply
· Graphic Card
· Precision Voltage Reference
Mar. 2007 Rev. 1. 7
SOT-23
Figure 1. Package Type of AN431
BCD Semiconductor Manufacturing Limited
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