Specification	MCP1642D-18I/MS

Current - Output	800 mA
Frequency - Switching	1 MHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-MSOP, 8-TSSOP
Package / Case	3 mm
Package / Case [custom]	0.118 in
Supplier Device Package	8-MSOP
Synchronous Rectifier	True
Topology	Boost
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	0.65 V
Voltage - Output (Min/Fixed)	1.8 V

MCP1642 Series

1 MHz 1.8A Isw Synchronous PWM Boost Regulator

Part	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Function	Voltage - Output (Max) [Max]	Number of Outputs	Supplier Device Package	Output Type	Current - Output	Output Configuration	Mounting Type	Frequency - Switching	Package / Case	Topology	Voltage - Input (Min) [Min]	Output Type	Package / Case [custom]	Package / Case
Microchip Technology MCP1642DT-ADJI/MC	5.5 V	1.8 V	85 °C	-40 °C	Step-Up	5.5 V	1	8-DFN (2x3)	Adjustable	800 mA	Positive	Surface Mount	1 MHz	8-VFDFN Exposed Pad	Boost	0.65 V
Microchip Technology MCP1642B-18I/MC	5.5 V	1.8 V	85 °C	-40 °C	Step-Up		1	8-DFN (2x3)		800 mA	Positive	Surface Mount	1 MHz	8-VFDFN Exposed Pad	Boost	0.65 V	1.81 mOhm
Microchip Technology MCP1642B-ADJI/MS	5.5 V	1.8 V	85 °C	-40 °C	Step-Up	5.5 V	1	8-MSOP	Adjustable	800 mA	Positive	Surface Mount	1 MHz	8-MSOP 8-TSSOP	Boost	0.65 V		0.118 in	3 mm
Microchip Technology MCP1642D-33I/MS	5.5 V	3.3 V	85 °C	-40 °C	Step-Up		1	8-MSOP		800 mA	Positive	Surface Mount	1 MHz	8-MSOP 8-TSSOP	Boost	0.65 V	1.81 mOhm	0.118 in	3 mm
Microchip Technology MCP1642B-18I/MS	5.5 V	1.8 V	85 °C	-40 °C	Step-Up		1	8-MSOP		800 mA	Positive	Surface Mount	1 MHz	8-MSOP 8-TSSOP	Boost	0.65 V	1.81 mOhm	0.118 in	3 mm
Microchip Technology MCP1642D-18I/MS	5.5 V	1.8 V	85 °C	-40 °C	Step-Up		1	8-MSOP	Adjustable	800 mA	Positive	Surface Mount	1 MHz	8-MSOP 8-TSSOP	Boost	0.65 V		0.118 in	3 mm
Microchip Technology MCP1642B-30I/MC	5.5 V		85 °C	-40 °C	Step-Up		1	8-DFN (2x3)		800 mA	Positive	Surface Mount	1 MHz	8-VFDFN Exposed Pad	Boost	0.65 V	1.81 mOhm
Microchip Technology MCP1642D-50I/MC	5.5 V	5 V	85 °C	-40 °C	Step-Up		1	8-DFN (2x3)		800 mA	Positive	Surface Mount	1 MHz	8-VFDFN Exposed Pad	Boost	0.65 V	1.81 mOhm
Microchip Technology MCP1642BT-50I/MS	5.5 V	5 V	85 °C	-40 °C	Step-Up		1	8-MSOP		800 mA	Positive	Surface Mount	1 MHz	8-MSOP 8-TSSOP	Boost	0.65 V	1.81 mOhm	0.118 in	3 mm
Microchip Technology MCP1642DT-50I/MS	5.5 V	5 V	85 °C	-40 °C	Step-Up		1	8-MSOP		800 mA	Positive	Surface Mount	1 MHz	8-MSOP 8-TSSOP	Boost	0.65 V	1.81 mOhm	0.118 in	3 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.32
Microchip Direct	TUBE	1	$ 1.32
		25	$ 1.11
		100	$ 1.00
		1000	$ 0.98
		5000	$ 0.97
Newark	Each	100	$ 0.88

Description

General part information

MCP1642 Series

The MCP1642B/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 either one-cell, two-cell, or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. With the 1.8A Typical Peak Input Current Limit, MCP1642B/D can provide over 1A output current in 5V applications with input over 3.6V

Documents

Technical documentation and resources

MCP1642D-18I/MS

Deep-Dive with AI

MCP1642D-18I/MS

Deep-Dive with AI

Technical Specifications

MCP1642 Series

Pricing

Description

MCP1642 Series

Documents

Product Change Notice EN

Technical Data Sheet EN

MCP1642B/MCP1642D User's Guide

MCP1642B/D High-Current Synchronous Boost Converter Evaluation Board User Guide

Single Cell Input Boost Converter Design

Analog and Interface Product Selector Guide

Optimizing Battery Life in DC Boost Converters Using MCP1640

MCP1642 Series