Datasheet > LM431A

LM431A

更新时间： 2024-11-19 04:20:07

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描述
Shunt Regulator

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LM431A 数据手册

Shunt Regulator

LM431 LM431A LM431B

Shunt Regulator

General Description

• The LM431 Series ICs are three-terminal programmable

shunt regulators with guaranteed thermal stability over a

full operation range. These monolithic ICs voltage reference

operate as a low temperature coefficient Zener which is

programmable from Vref to 36V with two external resistors.

These devices exhibit a wide operating current range of 1.0 to

100mA with a typical dynamic impedance of 0.15 to 0.22Ω. The

characteristics of these references make them excellent

replacements for Zener diodes in many applications such as

digital voltmeters, power supplies and op amp circuitry

The 2.5V reference makes it convenient to obtain a stable

reference from 5.0V logic supplies, and since the LM431 series

operates as a shunt regulator, it can be used as either a positive or

negative voltage reference.

TO-92

SOT-23

SOP-8

SOT-23-5

SOT-89

• The output voltage of both types can be set to any value between V^REF(2.5V) and the corresponding

maximum cathode voltage.

Features

Applications

• Charger

• Programmable Precise Output Voltage from

2.5V to 36V

• Voltage Adapter

• Switching Power Supply

• Graphic Card

• High Stability under Capacitive Load

• Low Temperature Deviation

• Precision Voltage Reference

• Can be used in either positive or negative

Voltage reference

• Low Dynamic Output Impedance: 0.15 to 0.22Ω Typical

• Operating Current from 1.0mA to 100mA

• Low Output Noise Voltage

• RoHS Compliance

Rev. A/DX 2007-06-04

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与LM431A相关器件

型号	品牌	获取价格	描述	数据表
LM431A_11	FAIRCHILD	获取价格	Programmable Shunt Regulator
LM431AC	NXP	获取价格	Adjustable precision shunt regulators
LM431ACM	TI	获取价格	LM431 Adjustable Precision Zener Shunt Regulator
LM431ACM	NXP	获取价格	Adjustable precision shunt regulators
LM431ACM	FAIRCHILD	获取价格	Programmable Shunt Regulator
LM431ACM	NSC	获取价格	Adjustable Precision Zener Shunt Regulator
LM431ACM/NOPB	TI	获取价格	LM431 Adjustable Precision Zener Shunt Regulator
LM431ACM3	NSC	获取价格	Adjustable Precision Zener Shunt Regulator
LM431ACM3	TI	获取价格	LM431 Adjustable Precision Zener Shunt Regulator
LM431ACM3/N1F	NSC	获取价格	IC 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.495 V, PDSO3, SOT-23, 3 PIN, Voltage Reference