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

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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
■ Available in RoHS Compliant, Lead Free Packages:
TO-252, SOT-223, TO-220 & TO-263
SPX1521
3 Pin TO-263
1 23
V_OUT GND V_IN
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
May15-07
SPX1521 300mA Low Dropout Voltage Regulator

© 2007 Sipex Corporation