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High Efficiency Synchronous Step-Down Switching Regulators
ADP1148, ADP1148-3.3, ADP1148-5
FEATURES Operation From ...
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High Efficiency Synchronous Step-Down Switching
Regulators
ADP1148, ADP1148-3.3, ADP1148-5
FEATURES Operation From 3.5 V to 18 V Input Voltage Ultrahigh Efficiency > 95% Low Shutdown Current Current Mode Operation for Excellent Line and Load
Transient Response High Efficiency Maintained Over Wide Current Range Logic Controlled Micropower Shutdown Short Circuit Protection Very Low Dropout Operation Synchronous FET Switching for High Efficiency Adaptive Nonoverlap Gate Drives
APPLICATIONS Notebook and Palmtop Computers Portable Instruments Battery Operated Digital Devices Industrial Power Distribution Avionics Systems Telecom Power Supplies GPS Systems Cellular Telephones
GENERAL DESCRIPTION The ADP1148 is part of a family of synchronous step-down switching
regulator controllers featuring automatic sleep mode to maintain high efficiencies at low output currents. These devices drive external complementary power MOSFETs at switching frequencies up to 250 kHz using a constant off-time ...