Datasheet > SPX2951ACS-L-3.3/TR

SPX2951ACS-L-3.3/TR

更新时间： 2024-11-29 07:29:23

品牌	Logo	应用领域
艾科嘉 - EXAR		光电二极管输出元件调节器
页数	文件大小	规格书
13页	137K
描述
Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8, LEAD FREE, SOIC-8

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中文翻译

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SPX2950/SPX2951

150mA Low Dropout Voltage Regulator

TO-92 (N)

8-Pin Surface Mount (S)

FEATURES

INPUT

OUTPUT

SENSE

FEEDBACK

■ 5.0V and 3.3V at 150mA Output

■ Accurate: 0.5% for SPX2950A/SPX2951A

■ Very Low Quiescent Current

■ Low Dropout Voltage: 300mV at 150mA

■ Extremely Tight Load and Line Regulation

■ Very Low Temperature Coefficient

■ Current & Thermal Limiting

■ Need Only 1µF for Stability

■ Offered in TO-92 (SPX2950) and SOIC

(SPX2951)

SHUTDOWN

5V or 3.3V Output

ERROR

GROUND

OUT

GROUND

SPX2950 Bottom View

SPX2951 Top View

Now Available in Lead Free Packaging

APPLICATIONS

■ Battery Powered Systems

■ Cordless Telephones

■ Radio Control Systems

■ Portable/Palm Top/Notebook Computers

■ Portable Consumer Equipment

■ Portable Instrumentation

■ Avionics

■ Direct Replacement for LP2950/LP2951

SPX2951 versions only

■ Error Flag Warns of Output Dropout

■ Logic-Controlled Electronic Shutdown

■ Output Programmable From 1.24 to 29V

■ SMPS Post-Regulator

■ Voltage Reference

■ Automotive Electronics

DESCRIPTION

The SPX2950 and SPX2951 are low power voltage regulators. These devices are an excellent choice for

use in battery-powered applications such as cordless telephones, radio control systems, and portable

computers. TheSPX2950andSPX2951featurelowquiescentcurrent andlowdropoutvoltage(typ.20mV

at100µAand300mVat150mA). Thisincludesatightinitialtoleranceof(0.5%forSPX2950A/SPX2951A),

extremely good load and line regulation (0.05% typ.), and very low output temperature coefficient (20ppm/

°C typ.), making the SPX2950/SPX2951 useful as a low-power voltage reference.

The error flag output feature is used as a power-on reset for warning of a low output voltage, due to a falling

voltage. The logic compatible shutdown feature enables the regulator to be switched ON and OFF. The

SPX2950 is offered in a 3-pin TO-92 package compatible with other 5.0V, 3.3V regulators. The SPX2951

is availiable in an 8-lead SOIC package.

UNREGULATED DC

INPUT

FEEDBACK

OUTPUT

SENSE

180k

Ω

ERROR

FROM

CMOS OR

TTL

AMPLIFIER

330k

Ω

5V TAP

SHUTDOWN

60 mV

60k

Ω

1µF

______

ERROR

ERROR DETECTION

COMPARATOR

TO CMOS OR

TTL

1.23V

REFERENCE

GROUND

Block Diagram of SPX2951, 8 Lead 5V Version

DATE: 12/01/04

SPX2950/SPX2951 150mA Low Dropout Voltage Regulator

12 3 4 5 6 7...13

中文翻译

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与SPX2951ACS-L-3.3/TR相关器件

型号	品牌	获取价格	描述	数据表
SPX2951ACS-L-5.0/TR	EXAR	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8,
SPX2951ACS-L-5-0/TR	EXAR	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8,
SPX2951CS-3.0	SIPEX	获取价格	150mA Low Dropout Voltage Regulators
SPX2951CS-3.3	SIPEX	获取价格	150mA Low Dropout Voltage Regulator
SPX2951CS-3.3/TR	EXAR	获取价格	Regulator, 1 Output, BIPolar, PDSO8,
SPX2951CS-5.0	SIPEX	获取价格	150mA Low Dropout Voltage Regulator
SPX2951CS-5.0/TR	SIPEX	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8,
SPX2951CS-L-3.3	EXAR	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8,
SPX2951CS-L-5.0	EXAR	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8,
SPX2951CS-L-5.0/TR	EXAR	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 30V Max, 0.5V Dropout, BIPolar, PDSO8,

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