738712AA

Product Overview

738712AA is commonly associated with Microchip MCP73871-2AAI/ML, a single-cell Li-Ion / Li-Poly battery charge management controller with integrated power-path management and system load sharing. The device can manage power from a USB port or AC-DC adapter while charging the battery and supplying the system load. With compact QFN-20 packaging, charge status outputs, power-good indication and thermal protection, it is suitable for portable electronics, handheld devices, battery-powered equipment and embedded power management designs.

Key Features

• Manufacturer: Microchip Technology

• Part Number: 738712AA / MCP73871-2AAI/ML

• Device Type: Li-Ion / Li-Poly battery charger IC

• Product Category: PMIC - battery charge management

• Battery Chemistry: Single-cell Li-Ion / Li-Polymer battery

• Power Path Management: Integrated system load sharing support

• Input Source: USB port or AC-DC wall adapter

• Supply Voltage Range: 4.4V to 6V

• Charge Current: Programmable charge current depending on external resistor setting

• System Load Current Support: Up to 1.8A total input current depending on design conditions

• Battery Regulation Voltage: 4.2V version commonly associated with MCP73871-2AA

• Charge Control: Constant-current / constant-voltage charging profile

• Status Outputs: Power-good and charge status indicators

• Safety Timer: Integrated charge safety timer support

• Thermal Protection: Overtemperature and thermal regulation protection

• Package: QFN-20 / 20-lead 4mm x 4mm package

• Pin Count: 20 pins

• Mounting Type: Surface mount

• Operating Temperature Range: -40°C to +85°C

• RoHS Status: RoHS compliant package versions available

• Search / Marking Code: 738712AA

• Typical Use: Portable battery-powered devices, USB charging systems and embedded power management circuits

• Datasheet PDF: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP73871-Data-Sheet-20002090E.pdf

• Ordering / Packaging Note: Buyers should verify the full Microchip ordering code, package type, charge-voltage option, top marking, RoHS status, reel packaging and battery charging requirements before production use.

Applications

738712AA / MCP73871-2AAI/ML can be used in portable and rechargeable electronic systems that require single-cell lithium battery charging with system load sharing. Typical applications include handheld instruments, portable medical devices, GPS devices, battery-powered communication equipment, USB-powered devices, smart sensors, embedded development boards, consumer electronics, wireless modules and backup battery systems. It is also suitable for BOM review where a Microchip Li-Ion / Li-Poly charger IC with power-path management is required.

Quality & Sourcing

Antrex Electronics can support 738712AA / MCP73871-2AAI/ML sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For project-based purchasing, buyers can provide quantity, target price, required Microchip suffix, battery regulation voltage, packaging requirements and application information for faster quotation support.

For quality control, Antrex Electronics can help arrange product photos, label review, visual inspection and third-party testing support when required. OEMs, EMS providers, repair centers and electronic component buyers are welcome to send BOM lists or hard-to-find PMIC requests for sourcing assistance.