SPX1521 Datasheet, PDF (1/8 Pages) Sipex Corporation – 300mA Low Dropout Voltage Regulator

®
SPX1521
300mA Low Dropout Voltage Regulator
FEATURES
■ 1% Output Accuracy 3.3V, 5V,
at 300mA Output
■ Very Low Quiescent Current
■ 0.3V (Typ.) Dropout Voltage at 300mA
■ Extremely Tight Load and Line Regulation
■ Current & Thermal Limiting
■ Reverse Battery Protection
■ Equivalent Replacement For LT1521
SPX1521
3 Pin TO-263
1 23
V_OUT GND V_IN
Now Available in Lead Free Packaging
DESCRIPTION
The SPX1521 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 SPX1521
features very low quiescent current and very low dropout voltage. This includes a tight initial tolerance of
±1% max, and very low output temperature coefficient, making the SPX1521 useful as a low-power voltage
reference.
The SPX1521 is offered in 3 pin TO-252, SOT-223, TO-220 & TO-263 packages.
TYPICAL APPLICATIONS CIRCUIT
V_OUT
I_IN
+
0.1µF
I_IN = I_L + I_G
IN
OUT
SPX1521
GND
I_G
5V
+
2.2µF
I_L
LOAD
Date: 5/25/04
SPX1521 300mA Low Dropout Voltage Regulator
1
©Copyright 2004 Sipex Corporation