AQ432
1.24V Shunt Ref/Amplifier
TO-92, SOT23, SC70 Package
Product Specification
Revision 1.0
May 15, 2007
General Description
The AQ432 is a low voltage reference/
amplifier suited for the control loop of low
voltage power supplies. Functionally similar
to the ubiquitous TL431, the AQ432 has a
lower 1.24V reference and a much wider
range of operating currents. Particular care
was taken in the design to minimize
overshoot at startup and to allow wide AC
bandwidth.
Unlike other 1.24V reference/amplifiers, the
AQ432 is designed to be stable under all
conditions and does not suffer from the
common overshoot issued associated with
other parts low voltage parts
Applications
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•
•
•
Power supply control loop
Low TC low voltage reference
Power management applications
Direct replacement for AP432, AS432,
SPX432, TLV431, and LMV431
Features
•
•
•
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Low voltage reference: 1.24V
40 uA to 100 mA operation
Low TC voltage reference
Improved AC, DC performance
compared to 1.24V part types
•
Offered in ultra small SC70 package
•
RoHS compliant
Pin Configuration
Pin Descriptions
Pin Name
CATH
REF
ANODE
Function
Output and supply terminal, must be greater than 1.2V for normal operation
Input, nominally 1.24V in normal operation.
Ground and Substrate
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AQ432
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