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SPX1121N-3-3 Datasheet(PDF) 1 Page - Sipex Corporation

Part # SPX1121N-3-3
Description  150mA Low Dropout Voltage Regulator
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SPX1121N-3-3 Datasheet(HTML) 1 Page - Sipex Corporation

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Date: 12/20/05
SPX1121 150mA Low DropoutVoltage Regulator
© Copyright 2005 Sipex Corporation
150mA Low Dropout Voltage Regulator
SPX1121
DESCRIPTION
FEATURES
■ 5.0V and 3.3V output versions
■ 1% Output Accuracy
■ Very Low Quiescent Current
■ Low Dropout: 300mV @ 150mA
■ Very Tight Load & Line Regulation
■ Very Low Temperature Coefficient
■ Current and Thermal Limiting
■ Requires only 1µF for Stability
■ Equivalent Replacement for LT1121
■ Industry Standard SOT-223 and TO-92
3 lead packages
®
The SPX1121 is a low power voltage regulator. It is an excellent choice for use in battery-powered
applications such as cordless telephones, radio control systems, and portable computers. The
SPX1121 features very low quiescent current and low dropout voltage (typ. 20mV at 100µA and
300mV at 150mA). A tight initial tolerance (1%), extremely good load and line regulation (0.05%
typ.), and very low output temperature coefficient (20 ppm/°C typ.), make the SPX1121 useful
as a low power voltage reference.
13
2
V
OUT
GND
SOT-223 Package (M3)
Front View
V
IN
SPX1121
GND
+
2.2µF
+
SPX1121
I
IN
I
G
I
L
5V
IN
OUT
GND
LOAD
I
IN= I L+ I G
V
IN
0.1µF
Figure 1. Fixed +5V Regulator Circuit
PACKAGE PINOUOTS
Bottom View
1
3
2
OUTPUT
GND
INPUT
TO-92 (N)


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