Microchip MCP166X | Demoboard AN2085

Description

This document aims to assist engineers in designing different power applications and to provide an insight on how a simple, Non-Synchronous Boost Converter can be used to develop solutions for non-typical requirements.The following paragraphs will provide examples of converter applications that fulfill a wide variety of the industry requirements.The solutions provided by Microchip Technology Inc. highlight the use of the MCP1661/3 boost (step-up) regulators, which provide the necessary flexibility required in dealing with the increasing range of the technological field demands.The MCP1661/3 devices are compact, highly efficient, fixed-frequency, Non-Synchronous Step-up DC-DC Converters, which integrate a 36V switch. These products provide space efficient, high-voltage step-up, easy-to-use power supply solutions. The MCP1661/3 devices were developed for applications that are powered by two-cell or three-cell alkaline, Ni-Cd, Ni-MH batteries, or Li-Ion or Li-Polymer batteries.

Features

• Wide Output Voltage Range: Up to 32V
• Typical Input Peak Current Limit:
• 1.3A (MCP1661)
• 1.8A (MCP1663)
• Input Voltage Range: 2.4V-5.5V
• Undervoltage Lockout (UVLO):
• UVLO @ VIN Rising: 2.3V, typical
• UVLO @ VIN Falling: 1.85V, typical
• Pulse-Width Modulator (PWM) Operation with Skip Mode: 500 kHz
• Output Overvoltage Protection (OVP) for MCP1661/3 in the event of:
• Feedback pin shorted to GND
• Disconnected feedback divider
• Internal Compensation
• Peak Current Mode Control
• Available Packages (pin to pin compatible):5-Lead SOT-23 and 2x3 mm, 8-Lead TDFN

More information

• Datasheet
• IC product information