This document introduces Microchip MCP1252/3 inductorless buck/boost DC/DC converters' features and characteristics.
The MCP1252 and MCP1253 are inductorless, positive-regulated charge pump DC/DC converters designed for applications requiring low noise and high efficiency. They generate a regulated fixed (3.3V or 5.0V) or adjustable output voltage and can deliver up to 120 mA of output current. The devices automatically switch between buck and boost operation depending on whether the input voltage is lower or higher than the output voltage.
| Output Current (Fixed 3.3V) | 80 mA to 150 mA |
|---|---|
| Supply Voltage Range | 2.0V to 5.5V |
| Switching Frequency (MCP1252) | 650 kHz |
| Switching Frequency (MCP1253) | 1 MHz |
| Output Voltage Accuracy | +/- 2.5% |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 8-Lead MSOP |
The typical supply current in shutdown mode is 0.1 uA.
Yes, the datasheet lists White LED Backlighting as a primary application.
The devices are able to deliver up to 120 mA output current.