Dual High-Efficiency PWM Step-Down DC/DC Converter
MT3820
GENERAL DESCRIPTION
The MT3820 is a dual high-efficiency Pulse-Width-Modulated (PWM) step-down DC/DC converter.
It is capable of delivering 1.
2A output current over a wide input voltage range from 2.
4V to 5.
5V, the MT3820 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.
PWM/Low-Dropout auto-switch and shutdown modes.
Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode.
No external
Schottky diode is required...