MCP1640 Boost Regulator

Microchip's MCP1640/B/C/D low-voltage technology allows regulators to start up without high inrush current

MCP1640 Boost RegulatorMicrochip's MCP1640/B/C/D is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter. It provides an easy-to-use power supply solution for applications powered by one-cell, two-cell, or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. Low-voltage technology allows the regulator to start up without high inrush current or output voltage overshoot from a low 0.65 V input. High efficiency is accomplished by integrating the low- resistance N-channel boost switch and synchronous P-channel switch. All compensation and protection circuitry are integrated to minimize external components. For standby applications, the MCP1640 operates and consumes only 19 μA while operating at no load and provides a true disconnect from input to output at shut down (EN = GND). Additional device options are available that operate in PWM only mode and connect input to output bypass while shut down.

A "true" load disconnect mode provides input to output isolation while disabled by removing the normal boost regulator diode path from input to output. A bypass mode option connects the input to the output using the integrated low resistance P-Channel MOSFET, which provides a low bias keep alive voltage for circuits operating in Deep Sleep mode. Both options consume less than 1 μA of input current.

Microchip's Portable Power Conversion Design Guide

Applications
  • One, two, and three cell alkaline and NiMH/NiCd portable products
  • Single cell Li-ion to 5 V converters
  • Li coin cell powered devices
  • Personal medical products
  • Wireless sensors
  • Handheld instruments
  • GPS receivers
  • Bluetooth headsets
  • +3.3 V to +5.0 V distributed power supply

Boost Regulator

ImageManufacturer Part NumberDescriptionAvailable Quantity
MCP1640CT-I/CHY datasheet linkIC REG BST ADJ 0.1A SYNC SOT23-6MCP1640CT-I/CHYIC REG BST ADJ 0.1A SYNC SOT23-616850 - Immediate
MCP1640CT-I/CHY product page link
MCP1640-I/MC datasheet linkIC REG BOOST ADJ 0.1A SYNC 8DFNMCP1640-I/MCIC REG BOOST ADJ 0.1A SYNC 8DFN1809 - Immediate
MCP1640-I/MC product page link
MCP1640B-I/MC datasheet linkIC REG BOOST ADJ 0.1A SYNC 8DFNMCP1640B-I/MCIC REG BOOST ADJ 0.1A SYNC 8DFN1244 - Immediate
MCP1640B-I/MC product page link
MCP1640DT-I/CHY datasheet linkIC REG BST ADJ 0.1A SYNC SOT23-6MCP1640DT-I/CHYIC REG BST ADJ 0.1A SYNC SOT23-61373 - Immediate
MCP1640DT-I/CHY product page link
ADM00458 datasheet linkKIT DEV MCP16251/1640BADM00458KIT DEV MCP16251/1640B17 - Immediate
ADM00458 product page link
MCP1640EV-SBC datasheet linkBOARD EVAL FOR MCP1640MCP1640EV-SBCBOARD EVAL FOR MCP164021 - Immediate
MCP1640EV-SBC product page link
MCP1640C-I/MC datasheet linkIC REG BOOST ADJ 0.1A SYNC 8DFNMCP1640C-I/MCIC REG BOOST ADJ 0.1A SYNC 8DFN456 - Immediate
MCP1640C-I/MC product page link
MCP1640RD-4ABC datasheet linkBOARD REF DES AAAA BAT BOOSTMCP1640RD-4ABCBOARD REF DES AAAA BAT BOOST13 - Immediate
MCP1640RD-4ABC product page link
MCP1640D-I/MC datasheet linkIC REG BOOST ADJ 0.1A SYNC 8DFNMCP1640D-I/MCIC REG BOOST ADJ 0.1A SYNC 8DFN131 - Immediate
MCP1640D-I/MC product page link
MCP1640BT-I/CHY datasheet linkIC REG BST ADJ 0.1A SYNC SOT23-6MCP1640BT-I/CHYIC REG BST ADJ 0.1A SYNC SOT23-6632 - Immediate
MCP1640BT-I/CHY product page link
MCP1640T-I/CHY datasheet linkIC REG BST ADJ 0.1A SYNC SOT23-6MCP1640T-I/CHYIC REG BST ADJ 0.1A SYNC SOT23-6222 - Immediate
MCP1640T-I/CHY product page link
ARD00386 datasheet linkBOARD MCP1640 2CELL BOOST CONVARD00386BOARD MCP1640 2CELL BOOST CONV3 - Immediate
ARD00386 product page link
Published: 2011-03-07