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SLG4AP645AV Charging GreenFET3 MOSFET Power Switch
Reviews
Category: Renesas Silego GreenPAK ICs
Description
The SLG4AP645AV Charging / GreenFET3 MOSFET Switch is a compact power-switching IC widely used in Apple MacBook logic boards. As the U4700 power IC in the MacBook Retina A1534 (Early 2015), it plays a crucial role in controlling USB-C charging, current flow, and voltage protection for the system.
Silego’s GreenFET3 technology provides ultra-efficient low-side switching with integrated protection, allowing the MacBook’s power delivery architecture to manage charge negotiation, system battery power sharing, and thermal control. When this IC fails, common symptoms include:
- No charging via USB-C
- USB-C port not recognized
- MacBook turns on briefly then shuts down
- Intermittent power or accessory issues
- Overcurrent faults on the logic board
Because this IC is essential, Apple logic-board repair technicians frequently replace the SLG4AP645AV during U4700 pathway repairs.
At OKSpare Nehru Place, the SLG4AP645AV is available in ready stock, fully quality tested, and supplied in both wholesale and retail quantities for MacBook repair centers across India.
Specification
- Manufacturer: Silego (now Dialog Semiconductor / Renesas)
- Type: GreenFET3 Low-Side MOSFET Power Switch
- Package: QFN-20 (20-pin, compact, no-lead package)
- Primary Application: Apple MacBook Retina 12" (A1534, Early 2015)
- Board Reference: U4700 — essential for USB-C charge/power pathways
- Function: Controls low-side switching, manages USB-C power routing, protects power rails
- Repair Use: Fixes no-charge, USB-C not detecting, intermittent power, and PMIC-related faults