Part	Applications	Number of Outputs	Topology	Supplier Device Package	Package / Case	Package / Case [custom]	Package / Case	Voltage - Output	Dimming	Voltage - Supply (Min) [Min]	Frequency	Type	Current - Output / Channel	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Max) [Max]	Mounting Type	Grade	Qualification	Voltage - Output [Min]	Voltage - Output [Max]
Microchip Technology MCP1643T-I/MS	Backlight	1	Step-Up (Boost)	8-MSOP	8-MSOP 8-TSSOP	0.118 in	3 mm	5 V	PWM	500 mV	1 MHz	DC DC Regulator	550 mA	85 °C	-40 °C	5 V	Surface Mount
Microchip Technology MCP1643-I/MSVAO	Backlight	1	Step-Up (Boost)	8-MSOP	8-MSOP 8-TSSOP	0.118 in	3 mm		PWM	500 mV	1 MHz	DC DC Regulator	550 mA	85 °C	-40 °C	5 V	Surface Mount	Automotive	AEC-Q100	0.6 V	5 V
Microchip Technology MCP1643T-I/MC	Backlight	1	Step-Up (Boost)	8-DFN (2x3)	8-VFDFN Exposed Pad			5 V	PWM	500 mV	1 MHz	DC DC Regulator	550 mA	85 °C	-40 °C	5 V	Surface Mount
Microchip Technology ADM00435
Microchip Technology MCP1643-I/MS	Backlight	1	Step-Up (Boost)	8-MSOP	8-MSOP 8-TSSOP	0.118 in	3 mm	5 V	PWM	500 mV	1 MHz	DC DC Regulator	550 mA	85 °C	-40 °C	5 V	Surface Mount

Pricing

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

Distributor	Package	Quantity	$

Digikey	Box	1	$ 85.15
Newark	Each	1	$ 86.82

Description

General part information

MCP1643 Series

MCP1643 is a compact, high-efficiency, fixed frequency, synchronous step-up LED driver with constant current, that operates from one and two-cell alkaline and NiMH/NiCd batteries. The device can also drive two red/green/yellow series connection LEDs.

ADM00435

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ADM00435

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Technical Specifications

MCP1643 Series

Pricing

Description

MCP1643 Series

Documents

Portable Power Conversion Design Guide

MCP1643

Datasheet

MCP1643 Series