MCP16251T-I/CH

Product Overview

The MCP16251T-I/CH from Microchip Technology is a boost switching regulator IC for generating a positive adjustable output from an input voltage range of 0.82 V to 5.5 V. The device provides one output, with an adjustable voltage from 1.8 V to 5.5 V, a 100 mA switch current rating, and 500 kHz switching frequency. It uses synchronous rectification and is supplied in a surface-mount SOT-23-6 package for compact power management designs.

Key Features

• Step-up boost topology with a single positive adjustable output
• Input voltage range: 0.82 V to 5.5 V
• Output voltage range: 1.8 V to 5.5 V
• 100 mA switch current rating and 500 kHz switching frequency
• Synchronous rectifier, surface-mount SOT-23-6 package, -40°C to 85°C operating temperature (TJ)

Applications

• Portable electronics requiring a single positive regulated rail from a low input voltage
• Compact surface-mount power stages where board area is limited
• Modest-current step-up conversion for sensors or communication modules

Design & Procurement Notes

Design considerations include matching the input and output voltage ranges to the system power budget, accounting for the 100 mA switch current rating, and evaluating the 500 kHz switching frequency for layout and filtering requirements. The synchronous rectifier architecture, single output, adjustable output voltage, and SOT-23-6 surface-mount package should be reviewed against electrical, thermal, and PCB constraints. The -40°C to 85°C (TJ) operating temperature range applies to junction temperature and should be considered in thermal design.