AIC1576
High-Efficiency, Step-Down DC/DC Controller
FEATURES
High Efficiency (up to 95%).
Low Quiescent Current at 90µA.
Pulse-Skipping and Pulse-Frequency Modulation.
Inputs-Uncommitted Current Sense Comparator.
Duty Cycle Adjustable.
90KHz to 280KHz Oscillator Frequency.
Power-Saving Shutdown Mode (8µA Typical).
Push-Pull Driver Output.
APPLICATIONS
LCD Monitors Notebook Computers Step-Down DC/DC Controller Module.
Constant Current Source for Battery Chargers.
DESCRIPTION
The AIC1576 is a high performance step-down DC/DC controller, designed to drive an external P-channel
MOSFET to generate programmable output
voltages.
Two main schemes of Pulse-Skipping and Pulse-Frequency Modulation ar...