MCP1643T-I/MS - Microchip Technology

Manufacturer Part Number

MCP1643T-I/MS

Manufacturer

Microchip Technology

Introduction

The MCP1643T-I/MS is a compact, highly efficient, fixed frequency, step-up DC-DC regulator in a 8-MSOP package suitable for driving LEDs.

Product Features and Performance

Integrated internal switch

Step-Up (Boost) topology

Single output

High efficiency due to low output ripple

Output voltage is fixed at 5V

Can supply up to 550mA current per channel

Operates at a switching frequency of 1MHz

Supports PWM dimming for LED applications

Stable with small external components

Product Advantages

Low start-up voltage (0.5V min)

Suitable for battery-operated devices due to low voltage operation

Thermal shutdown protection

Overcurrent protection

Key Technical Parameters

Voltage - Supply (Min): 0.5V

Voltage - Supply (Max): 5V

Voltage - Output: 5V

Current - Output / Channel: 550mA

Frequency: 1MHz

Quality and Safety Features

Industry-grade temperature range: -40°C to 85°C

Protection against over-temperature and overcurrent events

Compatibility

Surface mount compatible with 8-TSSOP, 8-MSOP packages

Compatible with PWM dimming control methods for LEDs

Application Areas

Mainly used for LED backlighting in portable devices

Suitable for battery-powered applications

Product Lifecycle

Product Status: Active

No indication of discontinuation, hence long-term availability expected

Microchip typically provides support and possible upgrades for active components

Several Key Reasons to Choose This Product

Highly efficient boost regulator for LED applications

Flexibility with supply voltage from 0.5V to 5V

Designed for easy PCB layout with minimal external components

Reliable performance with built-in safety features

Supported by Microchip, a leader in power management solutions

Ideal for portable applications due to low power operation and small form factor