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Industry Standard SOT-223 and TO-92
3 lead packages
V
IN
I
IN
IN
OUT
5V
I
L
SPX1121
+
0.1碌F
GND
+
2.2碌F
LOAD
I
IN
= I
L
+ I
G
I
G
Figure 1. Fixed +5V Regulator Circuit
DESCRIPTION
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 100碌A(chǔ) 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/擄C typ.), make the SPX1121 useful
as a low power voltage reference.
PACKAGE PINOUOTS
SOT-223 Package (M3)
TO-92 (N)
1
2
3
GND
SPX1121
1
2
3
INPUT
OUTPUT
GND
V
IN
GND
V
OUT
Front View
Bottom View
Date: 12/20/05
SPX1121 150mA Low DropoutVoltage Regulator
漏 Copyright 2005 Sipex Corporation
1