Datasheet > LM4121IM5-1.2

LM4121IM5-1.2

更新时间： 2024-09-15 22:09:55

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描述
Precision Micropower Low Dropout Voltage Reference

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LM4121IM5-1.2 数据手册

April 2000

LM4121

Precision Micropower Low Dropout Voltage Reference

General Description

The LM4121 is a precision bandgap voltage reference avail-

able in a fixed 1.25V and adjustable version with up to 5 mA

current source and sink capability.

Features (LM4121-1.2)

n Small SOT23-5 package

n Low voltage operation

n High output voltage accuracy:

n Source and Sink current output:

n Supply current:

n Low Temperature Coefficient:

n Enable pin

n Output voltages:

0.2%

5 mA

160 µA Typ.

50 ppm/˚C

This series reference operates with input voltages as low as

1.8V and up to 12V consuming 160 µA (Typ.) supply current.

In power down mode, device current drops to less than 2 µA.

The LM4121 comes in two grades A and Standard. The best

grade devices (A) have an initial accuracy of 0.2%, while the

standard have an initial accuracy of 0.5%, both with a

tempco of 50ppm/˚C guaranteed from −40˚C to +125˚C.

1.25V and Adjustable

−40˚C to +85˚C

n Industrial temperature Range:

n (For extended temperature range, −40˚C to 125˚C,

contact National Semiconductor)

The very low operating voltage, low supply current and

power-down capability of the LM4121 makes this product an

ideal choice for battery powered and portable applications.

Applications

The device performance is guaranteed over the industrial

temperature range (−40˚C to +85˚C), while certain specs are

guaranteed over the extended temperature range (−40˚C to

+125˚C). Please contact National for full specifications over

the extended temperature range. The LM4121 is available in

a standard 5-pin SOT-23 package.

n Portable, battery powered equipment

n Instrumentation and process control

n Automotive & Industrial

n Test equipment

n Data acquisition systems

n Precision regulators

n Battery chargers

n Base stations

n Communications

n Medical equipment

Connection Diagram

LM4121-1.2 Block Diagram

DS101291-2

Refer to the Ordering Information Table in this Data Sheet for Specific

Part Number

SOT23-5 Surface Mount Package

DS101291-1

†

Resistors are removed on the LM4121-ADJ

LM4121-ADJ only

DS101291-35

DS101291

www.national.com

12 3 4 5 6 7...16

中文翻译

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LM4121IM5-1.2 替代型号

型号	品牌	替代类型	描述	数据表
LM4121IM5-1.2/NOPB	NSC	功能相似	IC 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.25 V, PDSO5, LEAD FREE, SOT-23, 5 PIN, Voltage
LM4121AIM5X-1.2/NOPB	TI	功能相似	1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.25V, PDSO5, LEAD FREE, SOT-23, 5 PIN
LM4121AIM5-1.2	NSC	功能相似	Precision Micropower Low Dropout Voltage Reference

与LM4121IM5-1.2相关器件

型号	品牌	获取价格	描述	数据表
LM4121IM5-1.2/NOPB	NSC	获取价格	IC 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.25 V, PDSO5, LEAD FREE, SOT-23, 5 PIN, Voltage
LM4121IM5-1.2/NOPB	TI	获取价格	LM4121 Precision Micropower Low Dropout Voltage Reference
LM4121IM5-ADJ	TI	获取价格	LM4121 Precision Micropower Low Dropout Voltage Reference
LM4121IM5-ADJ	NSC	获取价格	Precision Micropower Low Dropout Voltage Reference
LM4121IM5-ADJ/NOPB	TI	获取价格	LM4121 Precision Micropower Low Dropout Voltage Reference
LM4121IM5X-1.2	NSC	获取价格	Precision Micropower Low Dropout Voltage Reference
LM4121IM5X-1.2/NOPB	TI	获取价格	IC,VOLT REFERENCE,FIXED,1.25V,BIPOLAR,TSOP,5PIN,PLASTIC
LM4121IM5X-ADJ	NSC	获取价格	Precision Micropower Low Dropout Voltage Reference
LM4121IM5X-ADJ/NOPB	TI	获取价格	LM4121 Precision Micropower Low Dropout Voltage Reference
LM4125	NSC	获取价格	Precision Micropower Low Dropout Voltage Reference

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