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Microchip Technology

MCP73811T-420I/OT

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Recycling Electronic Components

MCP73811T-420I/OT - Single-Cell Lithium-Ion Battery Charger IC

The MCP73811T-420I/OT from Microchip Technology is a highly integrated linear charge management controller designed for single-cell lithium-ion and lithium-polymer battery applications. This compact SOT-23-5 surface mount device delivers reliable 450mA constant current charging with precise 4.2V battery pack voltage regulation, making it ideal for portable electronics, IoT devices, and embedded systems requiring efficient power management.

Key Features & Benefits

  • Single-Cell Li-Ion/Polymer Support: Optimized for 4.2V battery chemistry with precise voltage regulation
  • 450mA Constant Current Charging: Delivers consistent charging performance for fast, safe battery replenishment
  • Wide Input Voltage Range: Accepts supply voltages up to 6V for flexible power source compatibility
  • Compact SOT-23-5 Package: Space-saving surface mount design perfect for size-constrained applications
  • Extended Operating Temperature: Reliable performance from -40°C to 85°C (TA) for industrial and consumer applications
  • RoHS Compliant: Environmentally friendly, meeting international standards

Applications

The MCP73811T-420I/OT is perfectly suited for a wide range of battery-powered applications including:

  • Portable consumer electronics and handheld devices
  • Wireless sensors and IoT edge devices
  • Wearable technology and fitness trackers
  • Bluetooth headsets and audio accessories
  • Medical monitoring equipment
  • Industrial instrumentation and data loggers

Why Choose HQICKEY?

At HQICKEY, we guarantee 100% authentic Microchip components with full manufacturer warranty support. Every MCP73811T-420I/OT ships with quality assurance documentation and is sourced directly from authorized distributors. We offer global shipping, competitive pricing, and expert technical support to help you succeed in your embedded hardware projects.

Related Products & Resources

Looking for more battery management solutions? Explore our complete Battery Chargers Collection featuring linear and switching charger ICs, fuel gauge controllers, and protection circuits from leading manufacturers.

Stay updated with the latest semiconductor industry insights, application notes, and design tips by visiting our Technical Blog.

Order your MCP73811T-420I/OT today and power your next innovation with confidence!

Product attributes Property Value
Manufacturer Microchip Technology
Product Series
Packaging Cut Tape (CT) | Tape & Reel (TR)
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Current - Charging Constant
Programmable Features -
Fault Protection -
Charge Current - Max 450mA
Battery Pack Voltage 4.2V
Voltage - Supply (Max) 6V
Interface -
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-23-5
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

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