AX3771 (Preliminary)
Dual High-Efficiency PWM Step-Down DC-DC Converter
GENERAL DESCRIPTION
The AX3771 is a dual high-efficiency Pulse-Skipping-Modulated (PSM) step-down DC-DC converter.
It is capable of delivering 1A output current over a wide input voltage range from 2.
5V to 7.
5V, the AX3771 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and other handheld devices.
Two operational modes are available: PSM/Low-Dropout auto-switch and shutdown modes.
Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PSM mode.
No external
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