Microchip Technology

MCP1642B-50I/MS  

DC Switching Voltage Regulators

MCP1642B-50I/MS Description

The MCP1642B-50I/MS from Microchip Technology is a high-efficiency, fixed-output 5V, 800mA synchronous boost DC-DC regulator designed for space-constrained and power-sensitive applications. Housed in an 8-pin MSOP package, this IC operates over a wide input voltage range of 0.65V to 5.5V, making it ideal for battery-powered systems, including single-cell or dual-cell alkaline/NiMH/Li-ion applications. With a 1MHz switching frequency, it minimizes external component size while maintaining high efficiency (up to 96%). The device integrates a synchronous rectifier, reducing power losses and eliminating the need for an external Schottky diode. Its ROHS3 compliance and REACH-unaffected status ensure environmental and regulatory compatibility.

MCP1642B-50I/MS Features

• Fixed 5V Output: Ensures stable voltage regulation for downstream components.
• Wide Input Range (0.65V–5.5V): Supports low-voltage sources like single-cell batteries.
• High Efficiency (Up to 96%): Synchronous rectification minimizes power dissipation.
• 1MHz Switching Frequency: Reduces inductor and capacitor size for compact designs.
• 800mA Output Current: Suitable for moderate-power applications.
• Synchronous Boost Topology: Eliminates external diode, reducing BOM cost and board space.
• Active Product Status & MSL1: Reliable for long-term use with unlimited shelf life.
• Surface-Mount (MSOP-8): Optimized for space-constrained PCBs.

MCP1642B-50I/MS Applications

• Portable Electronics: Powers sensors, MCUs, and wireless modules in handheld devices.
• Battery-Powered Systems: Ideal for single-cell alkaline/NiMH/Li-ion applications (e.g., wearables, IoT nodes).
• USB OTG (On-The-Go): Provides 5V boost for peripherals from low-voltage batteries.
• Industrial Sensors: Efficiently steps up voltage in low-power sensor nodes.
• Medical Devices: Compact, efficient power management for wearable health monitors.

Conclusion of MCP1642B-50I/MS

The MCP1642B-50I/MS stands out for its high efficiency, compact footprint, and wide input range, making it a superior choice for battery-operated and portable designs. Its synchronous architecture reduces component count, while the 1MHz switching frequency enables miniaturization. Whether for IoT, consumer electronics, or industrial systems, this regulator delivers reliable, high-performance power conversion with minimal design overhead. Engineers seeking a cost-effective, space-saving boost solution will find it exceptionally well-suited for modern low-voltage applications.

MCP1642B-50I/MS Documents

Download datasheets and manufacturer documentation for MCP1642B-50I/MS

PCN Assembly/Origin :

Mult Devices 23/May/2018      

Datasheets :

MCP1642B,D Datasheet      

PCN Packaging :

Label and Packing Changes 23/Sep/2015      

Design Resources :

MCP1642 Development Tool Selector      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH