AQ431L
1.24V Shunt Ref/Amplifier
TO-92, SOT23, SC70 Package
Product Specification
Revision 1.5
November 15, 2005
General Description
The AQ431L is a low voltage reference/
amplifier suited for the control loop of low
voltage power supplies. Functionally similar
to the ubiquitous TL431, the AQ431L 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.
Applications
•
Power supply control loop
•
Low TC low voltage reference
•
Power management applications
Features
•
•
•
•
Low voltage reference: 1.24V
40 uA to 100 mA operation
Low TC voltage reference
Improved AC, DC performance
compared to TLV431, 432 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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AQ431L
ACUTECH [ ACUTECHNOLOGY SEMICONDUCTOR ]
