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AS431I Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited

Part # AS431I
Description  LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR
PDF  16 Pages
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Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited

AS431I Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited

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Preliminary Datasheet
LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR
AS431I
Feb. 2009 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
1
General Description
The AS431I is a three-terminal adjustable shunt reg-
ulator with guaranteed thermal stability over a full
operation range. It features sharp turn-on characteris-
tics, low temperature coefficient and low output
impedance, which make it ideal substitute for Zener
diode in applications such as switching power supply,
charger and other adjustable regulators.
The output voltage of AS431I can be set to any value
between
VREF (2.5V)
and
the
corresponding
maximum cathode voltage (36V).
The AS431I is offered in two grade initial voltage
tolerance at 25℃, 0.5%, and 1%.
This IC is available in 3 packages: TO-92 (bulk or
ammo packing), SOT-23 and SOT-89.
Features
Programmable Precise Output Voltage from
2.5V to 36V
High Stability Under Capacitive Load
Low Minimum Cathode Current for Regulation:
10
µA (Typ.), 50µA (Max.)
Low Temperature Deviation: 4.5mV Typical
Sink Current Capacity from 50
µ A to 100mA
Low Output Noise
Wide Operating Range: -40℃ to 125℃
Applications
Charger
Voltage Adapter
Switching Power Supply
Graphic Card
Precision Voltage Reference
Figure 1. Package Type of AS431I
SOT-23
SOT-89
TO-92(Bulk Packing)
TO-92(Ammo Packing)


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