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SPX2945R-5.0/TR

更新时间： 2024-11-19 09:05:47
品牌 Logo 应用领域
艾科嘉 - EXAR 输出元件调节器
页数 文件大小 规格书
11页 241K
描述
Fixed Positive LDO Regulator, 5V, 0.7V Dropout, PSSO2, TO-252AA, 3 PIN

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SPX2945R-5.0/TR 技术参数

生命周期：Obsolete零件包装代码：TO-252AA
包装说明：TO-252,针数：4
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.82
最大回动电压 1：0.7 V最大输入电压：20 V
最小输入电压：6 VJESD-30 代码：R-PSSO-G2
JESD-609代码：e0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 1：0.4 A最大输出电压 1：5.12 V
最小输出电压 1：4.88 V标称输出电压 1：5 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：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR表面贴装：YES
端子面层：TIN LEAD端子形式：GULL WING
端子位置：SINGLE处于峰值回流温度下的最长时间：30

SPX2945R-5.0/TR 数据手册

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®
SPX2945  
400mA Low Dropout Voltage Regulator with Shutdown  
FEATURES  
1.2V to 20V  
1
7
8
+VIN  
+VIN  
VOUT  
+
■ 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  
FB  
SPX2945  
______  
ERROR  
SHUTDOWN  
INPUT  
ERROR  
SD  
3
5
OUTPUT  
GND  
4
VREF  
R2  
5V  
+
ON  
Adjustable Regulator  
■ Error Flag Warns Of Output Dropout  
■ Logic-Controlled Electronic Shutdown  
VIN  
IN  
OUT  
SPX2945  
■ Output Programmable From 1.24V to 20V  
(for SO-8)  
+
2.2 µF  
GND  
0.1 µF  
5V Regulator Circuit  
Now Available in Lead Free Packaging  
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)  
VOU  
1
8
7
VIN  
SPX2945  
SPX2945  
SPX2945  
2
SPX2945  
5 Pin TO-263  
SPX2945  
SENS  
SHUTDOWN  
GN  
FEEDBACK  
5V/ 3.3V TAP  
ERRO  
SPX2945  
1
2
3
1
2
3
1
3
2
3
4
6
5
1
2
3
1
2 3 4 5  
VIN  
VOU  
GN  
VIN GN VOU  
VIN GN  
VOU  
VIN GN VOU  
Date: 09/14/04  
SPX2945 400mA Low Dropout Voltage Regulator with Shutdown  
©Copyright 2004 Sipex Corporation  
1
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