The MP2109 is a 1.2MHz, 800mA synchronous step-down converter from MonolithicPower. It features high efficiency, low voltage operation at 100% duty cycle, and is ideal for powering single-cell lithium-ion batteries in portable devices.
The MP2109 is a dual independent 1.2MHz constant frequency, current mode, PWM step-down converter. Each converter integrates a main switch and a synchronous rectifier, eliminating the need for an external Schottky diode. It is designed for high efficiency in portable equipment powered by single-cell Lithium-Ion batteries.
| Switching Frequency | 1.2MHz |
|---|---|
| Load Current per Channel | 800mA |
| Input Voltage Range | 2.5V to 6V |
| Output Voltage Range | 0.6V to 6V |
| Efficiency | Up to 95% |
| Package Type | 10-Pin QFN |
| Operating Temperature | -40°C to +85°C |
The MP2109 operates at a constant switching frequency of 1.2MHz.
No, it integrates a synchronous rectifier which eliminates the need for an external Schottky diode.
The shutdown current is less than 0.1µA.
Each converter can supply a maximum load current of 800mA.