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Microchip High-Efficiency Synchronous Step-Up Switching Regulator 5V DC Output, 550mA MCP1643-I/MS

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Microchip High-Efficiency Synchronous Step-Up Switching Regulator 5V DC Output, 550mA MCP1643-I/MS

Name: Microchip High-Efficiency Synchronous Step-Up Switching Regulator 5V DC Output, 550mA MCP1643-I/MS
Brand: Microchip
SKU: 167042

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Category Switching Regulator Brand Microchip Condition New

Specifications

Country of Origin	India
Voltage	Converters / Switching Regulators Microchip Switching Regulator, Surface, 5V dc
Brand	Microchip
Length	6mm
Model	MCP1643-I/MS
Depth	0.9mm
Width	6mm
Mount Type	Surface
Series	MCP
Output Current	550mA
Maximum Operating Temperature	85°C
Package Type	MSOP
Minimum Operating Temperature	-40°C
Number of outputs	1
Maximum Input Voltage	5V dc
Standards/Approvals	RoHS, JEDEC
Maximum Output Voltage	5.0V
Number of Pins	8
Output Voltage 1	5V dc
Low Start-up Voltage	0.65V (typical, 25 mA LED Current)
Low Operating Input Voltage	down to 0.5V

Key Features

High efficiency synchronous step-up regulator suitable for LED drivers.
Operates with one or two alkaline, NiMH, or NiCad batteries.
Low start-up voltage of 0.65V ensures operation at low input levels.
Maintains LED current constant for consistent illumination.
Peak input current limited to 1.6A for stability.
Compact MSOP package with dimensions 6mm x 6mm x 0.9mm.
Wide operating temperature range from -40°C to 85°C.
Compliant with RoHS and JEDEC standards for quality assurance.

Product Description

Microchip MCP1643-I/MS is a high-efficiency, fixed frequency, synchronous step-up switching regulator designed for surface mounting applications. The device provides a stable 5V DC output voltage with a maximum output current of 550mA, making it suitable for driving LEDs and powering low voltage circuits.

While operating from single or dual alkaline, NiMH, or NiCad cells, the regulator features a low start-up voltage of 0.65V at 25mA load and can function down to 0.5V input voltage. The chip limits typical peak input current to 1.6A, helping to regulate current effectively and protect power sources.

Encased in a compact MSOP package measuring 6mm (length) x 6mm (width) x 0.9mm (depth), it integrates 8 pins for surface mount versatility. The product is rated for operation between -40°C to 85°C, aligning with demanding industrial and consumer environments.

Designed in compliance with RoHS and JEDEC standards, this MCP series switching regulator offers reliable performance and ease of integration for electronic components such as LED lighting drivers, handheld devices, and embedded systems requiring efficient power management.

High efficiency synchronous step-up design ensures minimal power loss. Operates over a broad temperature range to suit varied environmental conditions. Low-voltage start-up and operation enhance battery life in portable devices.

Compact MSOP form factor saves PCB space in electronic assemblies. Complies with industry standards ensuring quality and environmental safety.

This Microchip switching regulator is ideal for applications including industrial electronics, consumer lighting, portable instrumentation, and embedded power supply systems. Its compact size and efficient power conversion make it highly suitable for modern electronic designs.

Explore more Microchip voltage converters and Switching Regulators in EnvMart's Electronics & Electricals category for enhanced power management solutions.