Datasheet4U Logo Datasheet4U.com

MCP1603 Datasheet 500 Ma Synchronous Buck Regulator

Manufacturer: Microchip Technology

Overview: .. MCP1603 2.0 MHz, 500 mA Synchronous Buck Regulator.

General Description

The MCP1603 is a high efficient, fully integrated 500 mA synchronous buck regulator whose 2.7V to 5.5V input voltage range makes it ideally suited for applications powered from 1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries.

At heavy loads, the MCP1603 operates in the 2.0 MHz fixed frequency PWM mode which provides a low noise, low output ripple, small-size solution.

When the load is reduced to light levels, the MCP1603 automatically changes operation to a PFM mode to minimize quiescent current draw from the battery.

Key Features

  • Over 90% Typical Efficiency Output Current Up To 500 mA Low Quiescent Current = 45 µA, typical Low Shutdown Current = 0.1 µA, typical Adjustable Output Voltage: - 0.8V to 4.5V Fixed Output Voltage: - 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V 2.0 MHz Fixed-Frequency PWM (Heavy Load) Automatic PWM to PFM Mode Transition 100% Duty Cycle Operation Internally Compensated Undervolta.

More Datasheets from Microchip Technology

Part Number Description
MCP1601 500mA Synchronous BUCK Regulator
MCP1612 1.4 MHz Synchronous Buck Regulator
MCP1623 Low-Voltage Input Boost Regulator
MCP1624 Low-Voltage Input Boost Regulator
MCP1630 Pulse Width Modulator
MCP1640 0.65V Start-up Synchronous Boost Regulator
MCP1640B 0.65V Start-up Synchronous Boost Regulator
MCP1640C 0.65V Start-up Synchronous Boost Regulator
MCP1640D 0.65V Start-up Synchronous Boost Regulator
MCP1650 750 kHz Boost Controller

MCP1603 Distributor