PT1202
1.
9MHz, 600mA Synchronous Step-Down DC-DC Converter
GENERAL DESCRIPTION
The PT1202 is a high efficiency monolithic current mode synchronous buck
regulator with a constant operation frequency.
A main switch and a synchronous switch are integrated in PT1202, the device has high efficiency and no external
Schottky diode needed.
Supply current is 300uA during operation and drops to ≤1μA in shutdown.
The 2.
5V to 5.
5V input voltage range makes the PT1202 ideally suited for single Li-Ion battery-powered applications.
100% duty cycle provides low dropout operation, extending battery life in portable systems.
Automatic skip cycle operation mode at light loads provides very low output ripple fo...