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APL431L Datasheet دیتاشیت PDF دانلود

دیتاشیت - ANPEC - Low Voltage Adjustable Precision Shunt Regulator

شماره قطعه APL431L
شرح مفصل Low Voltage Adjustable Precision Shunt Regulator
تولید کننده ANPEC 
آرم ANPEC 


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APL431L شرح
APL431L
Low Voltage Adjustable Precision Shunt Regulator
Features
General Description
Precise Reference Voltage to 1.24V
Guaranteed 0.5%, 1% or 1.5% Reference Voltage
Tolerance
Sink Current Capability, 80uA to 100mA
Quick Turn-on
Adjustable Output Voltage, VO = VREF to 20V
Low Operational Cathode Current, 80µA Typical
0.1Typical Output Impedance
SOT-23-3, SOT-23-5, TO-92 and SOT-89
Packages
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
Linear Regulators
Adjustable Power Supply
Switching Power Supply
The APL431L 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 APL431L is an ideal voltage reference in isolated
feedback circuits for 3V to 12V switching-mode
power supplies. This device has a typical output
impedance of 0.1W. Active output circuitry provides
a very sharp turn-on characteristic, making the
APL431L excellent replacements for zener diodes
in many applications, including on-board regulation
and adjustable power supplies.
Pin Configuration
Symbol
Anode
REF
Cathode
ANODE
3
12
REF CATHODE
NC NC
54
123
REF ANODE CATHODE
Functional Diagram
Cathode
REF
Vref
3 CATHODE
2 ANODE
1 REF
123
REF ANODE CATHODE
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 before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. B.10 - Mar., 2008
1
www.anpec.com.tw

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