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AME, Inc.
Low Voltage Shunt Regulator
AME4311
n General Description
The AME4311 is a low volatge ...
www.DataSheet4U.com
AME, Inc.
Low
Voltage Shunt Regulator
AME4311
n General Description
The AME4311 is a low volatge version of the industry standard 431 shunt regulator. The AME4311 reference is set to 1.24 volts. The output
voltage can be set to any value between 1.24V and 8V with two external resistors. (For factory set internal feedback resistors see the AME4312.) When used with an optocoupler these devices are ideal for isolated 3.3V switching supplies. Analog Microelectronics offers this part in a TO-92 package as well as the space saving SOT-23 and SOT-25 packages. For isolated switching power supplies requiring
voltages lower than 2.7V see the AME4315.
n Functional Block Diagram
V+
REF
VR=1.24
n Features
l l l l l Small packages: SOT-23, SOT-25, TO-92 Low
voltage operation, 1.24V Tight
voltage tolerance --- ±0.5%,±1.0%, ±1.5% Wide operating current ------- 80µA to 15mA Wide temperature range ----- -40oC to +85oC
GND
n Pin Configuration
SOT-23 Top View
GND
l Low temperature coefficient --100ppm/oC(max) l Excellent transient response
SOT-25 Top View
GND REF
n Applications
l l l l l l l Battery Operating Equipments Adjustable Supplies Switching Power Supplies Error
Amplifiers Single Supply Amplifier Monitors / VCR / TV Personal Computers
REF
V+
V+
TO-92 Top View
V+ GND REF
1
www.DataSheet4U.com
AME, Inc.
Low
Voltage Shunt Regulator
AME4311
n Ordering Information
Part Number
AME4311EEAT
Marking
AME 4311 EEAT yyww AVVww
Output
Voltage Tolerance Packag...