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®
SPX2920
400mA Low Drop Out Voltage Regulator with Shutdown
FEATURES
■ Output 3.3V, 5.0V, at 400mA Output ■ Very Low Quiescent Current ■ Low Dropout Voltage ■ Extremely Tight Load And Line Regulation ■ Very Low Temperature Coefficient ■ Current & Thermal Limiting ■ Error Flag Warns Of Output Dropout (for SO-8) ■ Logic-Controlled Electronic Shutdown (for SO-8) ■ Output Programmable From 1.24V to 20V (for SO-8)
0.1 µF
ON SHUTDOWN INPUT OFF +VIN 100K 8 +VIN VOUT + 7 R1 0.01µ.
Low Drop Out Voltage Regulator
www.DataSheet4U.com
®
SPX2920
400mA Low Drop Out Voltage Regulator with Shutdown
FEATURES
■ Output 3.3V, 5.0V, at 400mA Output ■ Very Low Quiescent Current ■ Low Dropout Voltage ■ Extremely Tight Load And Line Regulation ■ Very Low Temperature Coefficient ■ Current & Thermal Limiting ■ Error Flag Warns Of Output Dropout (for SO-8) ■ Logic-Controlled Electronic Shutdown (for SO-8) ■ Output Programmable From 1.24V to 20V (for SO-8)
0.1 µF
ON SHUTDOWN INPUT OFF +VIN 100K 8 +VIN VOUT + 7 R1 0.01µF 10µF 1 1.2V to 20V
SPX2920
3 SD GND 4
FB
______ ERROR
ERROR 5 R2 VREF OUTPUT
Adjustable Regulator
5V IN OUT
VIN
SPX2920
+ GND + 2.2 µF
■ Equivalent Replacement for MIC2920A and MIC2904
5V Regulator Circuit
IG
DESCRIPTION
The SPX2920 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 SPX2920 features very low quiescent current (140µA Typ.) and very low dropout voltage. This includes a tight initial tolerance of 1% max and very low output temperature coefficient, making the SPX2920 useful as a lowpower voltage reference. The error flag output feature is used as power-on reset for warning of a low output voltage, due to a falling voltage input of batteries. Another feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. The SPX2920 is offered in 3-pin TO-220 package, SO-8 (same pin out as SPX295.