SLG5448 SLG55448V High-Current Load Switch IC

The SLG5448 / SLG55448V Charging / High-Current Load Switch IC is part of Silego’s GreenFET power-switch family, designed for compact portable electronics requiring efficient power control. Its ultra-low RdsON and ability to handle up to 2.5A–3A make it ideal for battery-powered systems where power loss must be minimized.

This IC is commonly used in:

• Smartphones and Android devices
• Notebook and tablet power rails
• USB power switching circuits
• Battery charging and protection modules
• Power distribution paths in embedded devices

Failures of this IC can cause symptoms such as:

• No power / device not turning on
• Battery not charging
• USB port not supplying power
• Overheating or shutdown under load
• Intermittent or unstable power rails

Because of its role in power gating and load control, the SLG5448 is a frequent replacement during smartphone and ultrabook motherboard repairs.

At OKSpare Nehru Place, the SLG5448 / SLG55448V is kept in ready stock, fully quality tested, and available in both wholesale and retail quantities for technicians and service centers.

• Manufacturer: Silego Technology / Dialog Semiconductor (Renesas)
• Type: High-Current Load Switch IC / Power Switch
• Current Capability: Typically 2.5A – 3.0A continuous load
• RdsON: Ultra-low resistance for minimal power loss
• Package: Compact QFN-type package (varies by board design)
• Functions:
• High-efficiency load switching
• Battery power routing
• Overcurrent and thermal protection
• Soft-start control (depending on configuration)
• Applications:
• Smartphones
• Notebook/tablet PCs
• Portable consumer devices
• Embedded power systems
• Repair Relevance:
• Fixes no-power, battery not charging, or unstable power gating in mobile and notebook devices