Microchip MCP73831T-2ATI/OT, Lithium-Ion, Lithium-Polymer, Battery Charge Controller, 500mA 5-Pin, SOT-23

  • RS Stock No. 911-5546
  • Mfr. Part No. MCP73831T-2ATI/OT
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): TH
Product Details

MCP73831 Li-Polymer Battery Charge Controllers

Microchips MCP73831 battery charge controllers are designed for single cell Li-Lion and Li-Polymer batteries. They're greatly advanced linear controllers and exceptionally great in space limited and cost effective. Included on the device is integrated pass transistor, integrated current sensing and reverse discharge protection. All of this is packed onto a 5-pin, SOT-23 package for minimal space use.

MCP73831 uses a constant current charge algorithm with selectable preconditioning and charge termination.

Features and Benefits:

  • Small SOT-23 package and cost effective

  • High accuracy pre-set voltage regulation - ± 0.75%

  • Four voltage regulation options – 4.2V, 4.35V, 4.4V, 4.5V

  • Programmable charge current – 15mA up to 500mA

  • Charge status can output to LEDs

  • Chip integrated thermal regulation

  • Under voltage lockout


  • Lithium Ion and Polymer battery chargers

  • Bluetooth headsets

  • Digital cameras

  • Personal data assistants

  • Cellular telephones

  • MP3 players

  • USB chargers

Battery Management, Microchip

Attribute Value
Battery Type Lithium-Ion, Lithium-Polymer
Mounting Type Surface Mount
Package Type SOT-23
Pin Count 5
Typical Operating Supply Voltage 3.75 → 6 V
Dimensions 3.1 x 1.8 x 1.3mm
Length 3.1mm
Height 1.3mm
Maximum Operating Temperature +85 °C
Width 1.8mm
Maximum Output Current 500mA
Maximum Output Voltage 4.232 V
Minimum Operating Temperature -40 °C
Minimum Output Current 15mA
Minimum Output Voltage 4.168 V
On back order for despatch 27/11/2020, delivery within 5 working days from despatch date.
Price (ex. GST) Each (On a Reel of 3000)
$ 0.706
(exc. GST)
$ 0.812
(inc. GST)
Per unit
Per Reel*
3000 +
*price indicative