SPX2945R

更新时间： 2024-11-17 22:59:15

品牌	Logo	应用领域
西伯斯 - SIPEX		线性稳压器IC 调节器电源电路输出元件
页数	文件大小	规格书
11页	101K
描述
500mA Low Drop Out Voltage Regulator with Shutdown

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中文翻译

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技术参数
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SPX2945R 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	TO-252, 3 PIN	Reach Compliance Code：	unknown
风险等级：	5.71	最大回动电压 1：	0.5 V
JESD-30 代码：	R-PSSO-G2	JESD-609代码：	e0
长度：	6.5405 mm	湿度敏感等级：	2
功能数量：	1	端子数量：	2
工作温度TJ-Max：	125 °C	工作温度TJ-Min：	-40 °C
最大输出电流 1：	0.5 A	最大输出电压 1：	29 V
最小输出电压 1：	1.24 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	TO-252	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	调节器类型：	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：	2.3876 mm	表面贴装：	YES
端子面层：	TIN LEAD	端子形式：	GULL WING
端子节距：	2.5 mm	端子位置：	SINGLE
处于峰值回流温度下的最长时间：	30	宽度：	6.09 mm
Base Number Matches：	1

SPX2945R 数据手册

SPX2945

400mA Low Dropout Voltage Regulator with Shutdown

FEATURES

1.2V to 20V

+V_IN

V_OUT

■ Output 3.3V, 5.0V at 400mA Output

■ Very Low Quiescent Current, 100µA

■ Low Dropout Voltage, 420mV at 400mA

■ Extremely Tight Load and Line Regulation

■ Very Low Temperature Coefficient

■ Current & Thermal Limiting

100K

OFF

0.01µF

10µF

R₁

SPX2945

______

ERROR

SHUTDOWN

INPUT

ERROR

OUTPUT

GND

V_REF

R₂

Adjustable Regulator

■ Error Flag Warns Of Output Dropout

■ Logic-Controlled Electronic Shutdown

V_IN

OUT

■ Output Programmable From 1.24V to 20V

(for SO-8)

SPX2945

2.2 µF

GND

0.1 µF

5V Regulator Circuit

DESCRIPTION

TheSPX2945isalowpowervoltageregulator.Thisdeviceisanexcellentchoiceforuseinbattery-powered

applications such as cordless telephones, radio control systems, and portable computers. The SPX2945

features very low quiescent current (100µA Typ.) and very low dropout voltage. This includes a tight initial

tolerance of 1% max and very low output temperature coefficient, making the SPX2945 useful as a low-

power voltage reference.

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

voltage input of batteries. Another feature is the logic-compatible shutdown input which enables the

regulator to be switched on and off. The SPX2945 is offered in 3-pin TO-220 package, SO-8 (same pin

out as SPX2951), SOT-223, surface mount 3-Pin TO-252, 3-Pin TO-263 packages and 5-Pin TO-263.

The regulator output voltage (of the 8-pin SO-8) may be pin-strapped for a 3.3V and 5.0V or programmed

from1.24Vto20Vwithanexternalpairofresistors. LookforSPX2951for150mAandSPX2954for250mA

applications.

TO-252 (R)

TO-263-5 (T5)

8-Pin Surface Mount

SOT-223 (M3)

(S)

TO-220-3 (U)

TO-263-3 (T)

V_OU

V_IN

SPX2945

5 Pin TO-263

SPX2945

SENS

SHUTDOWN

FEEDBACK

5V/ 3.3V TAP

ERRO

SPX2945

2 3 4 5

V_IN

V_OU

V_INGN V_OU

V_INGN

V_OU

V_INGN V_OU

Rev. B Date:01/20/04

SPX2945 400mA Low Dropout Voltage Regulator with Shutdown

12 3 4 5 6 7...11

中文翻译

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与SPX2945R相关器件

型号	品牌	获取价格	描述	数据表
SPX2945R-3.3	SIPEX	获取价格	400mA Low Dropout Voltage Regulator with Shutdown
SPX2945R-3.3/TR	SIPEX	获取价格	Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO2, TO-252AA, 3 PIN
SPX2945R-3-3	SIPEX	获取价格	400mA Low Dropout Voltage Regulator with Shutdown
SPX2945R-3-3/TR	SIPEX	获取价格	Regulator,
SPX2945R-3-3TR	SIPEX	获取价格	400mA Low Dropout Voltage Regulator with Shutdown
SPX2945R-5.0	SIPEX	获取价格	400mA Low Dropout Voltage Regulator with Shutdown
SPX2945R-5.0/TR	EXAR	获取价格	Fixed Positive LDO Regulator, 5V, 0.7V Dropout, PSSO2, TO-252AA, 3 PIN
SPX2945R-5-0	SIPEX	获取价格	400mA Low Dropout Voltage Regulator with Shutdown
SPX2945R-5-0/TR	SIPEX	获取价格	Regulator,
SPX2945R-5-0TR	SIPEX	获取价格	400mA Low Dropout Voltage Regulator with Shutdown

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