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SPX2920S-3.3 PDF预览

SPX2920S-3.3

更新时间： 2024-11-22 22:59:15
品牌 Logo 应用领域
西伯斯 - SIPEX 稳压器
页数 文件大小 规格书
10页 96K
描述
400mA Low Drop Out Voltage Regulator with Shutdown

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SPX2920S-3.3 数据手册

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®
SPX2920  
400mA Low Drop Out 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  
100K  
OFF  
0.01µF  
10µF  
R1  
FB  
SPX2920  
______  
ERROR  
SHUTDOWN  
INPUT  
ERROR  
■ Low Dropout Voltage  
SD  
3
5
OUTPUT  
GND  
4
VREF  
■ Extremely Tight Load And Line Regulation  
■ Very Low Temperature Coefficient  
■ Current & Thermal Limiting  
R2  
ON  
Adjustable Regulator  
■ Error Flag Warns Of Output Dropout  
(for SO-8)  
5V  
■ Logic-Controlled Electronic Shutdown  
VIN  
IN  
OUT  
(for SO-8)  
SPX2920  
■ Output Programmable From 1.24V to 20V  
+
(for SO-8)  
+
2.2 µF  
0.1 µF  
GND  
■ Equivalent Replacement for MIC2920A and  
MIC2904  
I
G
5V Regulator Circuit  
DESCRIPTION  
TheSPX2920 isalowpowervoltageregulator.Thisdeviceisanexcellentchoiceforuseinbattery-powered  
applications such as cordless telephones, radio control systems, and portable computers. The SPX2920  
features very low quiescent current (140µA Typ.) and very low dropout voltage. This includes a tight initial  
tolerance of 1% max and very low output temperature coefficient, making the SPX2920 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 SPX2920 is offered in 3-pin TO-220 package, SO-8 (same pin  
out as SPX2951), SOT-223, and surface mount and 3-pin TO-263 packages.  
The regulator output voltage (of the SO-8) may be pin-strapped for a 3.3V and 5.0V or programmed from  
1.24V to 20V with an external pair of resistors.  
8-Pin Surface Mount  
TO-220-3 (U)  
TO-263-3 (T)  
SOT-223 (M3)  
VOUT  
1
2
3
4
8
7
6
5
VIN  
SPX2920  
2
SPX2920  
SENSE  
FEEDBACK  
5V/ 3.3V TAP  
ERROR  
1
3
SPX2920  
SPX2920  
1
3
2
SHUTDOWN  
GND  
1
2
3
VIN  
VOUT  
GND  
VIN GND VOUT  
VIN GND VOUT  
Top View  
Top View  
Front View  
Top View  
Rev: A Date: 03/30/04  
SPX2920 400mA Low Drop Out Voltage Regulator with Shutdown  
©Copyright 2004 Sipex Corporation  
1
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