SPX1129_07 Datasheet, PDF (1/8 Pages) Sipex Corporation – 400mA Low Dropout Voltage Regulator

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SPX1129
TM
400mA Low Dropout Voltage Regulator
FEATURES
■ 1% Output Accuracy 3.3V, 5V,
at 500mA Output
■ Very Low Quiescent Current
■ 0.42V Dropout Voltage at 400mA
■ Extremely Tight Load and Line Regulation
■ Current & Thermal Limiting
■ Reverse Battery Protection
■ Equivalent Replacement For LT1129
APPPLICATIONS
■ Power Supply
■ Communications Equipment
■ Computers and Peripherals
SPX1129
3 Pin TO-263
SPX1129
1 23
3 Pin TO-220
1 23
Note:
Tab is Ground
V_OUT G_AN_vD _aiV_{lIaN blfeorinalLl e4apdacFkraegeePs.ackaging}
SPX1129
3 Pin SOT-223
1 23
V_IN GND V_OUT
V_OUT GND V_IN
SPX1129 ³
TO-252 ₂
1
V_IN
GND
V_OUT
Now Available in Lead Free Packaging
DESCRIPTION
The SPX1129 is a low power voltage regulator. This device is an excellent choice for use in battery-powered
applications such as cordless telephones, radio control systems, and portable computers. The SPX1129
features very low quiescent current and very low dropout voltage of 0.42 volts. This includes a tight initial
tolerance of ±1% max, and a very low output temperature coefficient, making the SPX1129 useful as a low-
power voltage reference.
The SPX1129 is offered in a SOT-223, TO-220, TO-252 & TO-263 3 lead packages.
V_IN
I_IN
+
0.1µF
I_IN= I _L+ I _G
TYPICAL APPLICATION CIRCUIT
IN
OUT
SPX1129
GND
5V
+
2.2µF
I_L
LOAD
I_G
Fixed +5V Regulator Circuit..
Mar13-07
SPX1129 400 mA Low Dropout Linear Regulator

© 2007 Sipex Corporation