APL1431L
Low Voltage Adjustable Precision Shunt Regulator
Features • •
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General Description
The APL...
APL1431L
Low Voltage Adjustable Precision Shunt
Regulator
Features
www.DataSheet4U.com
General Description
The APL1431L is a 3-terminal low voltage adjustable precision reference with specified thermal stability over applicable commercial temperature ranges . Output voltage may be set to any value between VREF (1.24 V) and 20 V with two external resistors (see Figure 2) . When used with an photocoupler , the APL1431L is an ideal voltage reference in isolated feedback circuits for 1.24V to 12V switchingmode power supplies . This device has a typical output impedance of 0.1Ω . Active output circuitry provides a very sharp turn-on characteristic , making the APL1431L excellent replacements for zener diodes in many applications , including on-board regulation and adjustable power supplies .
AN O DE RE F
Precise Reference Voltage to 1.24V Guaranteed 0.5% or 1% Reference Voltage Tolerance
Sink Current Capability , 60mA to 100mA Quick Turn-on Adjustable Output Voltage , VO = VREF to 20V Low Operational Cathode Current , 60mA Typical 0.1Ω Typical Output Impedance SOT-23-5 Packages
Applications
Linear
Regulators Adjustable Power Supply Switching Power Supply
5 1 2
4 3
NC
NC
C A T H O DE
Symbol
REF Anode Cathode
Functional Diagram
C athode
R EF
+ −
V REF
Anode
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify befo...