SC5350
High-current power path management IC with 5A system current and 3A fast charging for tablets and power banks
Product Overview
Description
The SC5350 is a high-current power path management IC designed for tablets, large power banks, and high-power portable devices. It supports up to 5A system current and 3A fast charging capability.
The device features advanced power path management with seamless switching between battery and external power. The integrated 3A switching charger provides fast charging with high efficiency.
Comprehensive protection features, I2C interface, and support for USB PD input make the SC5350 ideal for modern high-power portable electronics.
Product Series
SC
Primary Application
Tablets
Key Features
- 5A system current capability
- 3A switching charger
- USB PD input support
- Ideal diode operation
- Automatic source selection
- I2C interface
- QFN-24 package
Specifications
| Input Voltage | 4.5V to 12V |
|---|---|
| System Current | Up to 5A |
| Charge Current | Up to 3A |
| Dropout Voltage | <50mV |
| Package | QFN-24 |
Applications
Tablets
Electronic system design
Large power banks
Electronic system design
Portable monitors
Electronic system design
High-power IoT devices
Electronic system design
Industrial handhelds
Industrial automation and control
FAE Expert Insights
"The SC5350 is SouthChip's high-current power path solution for demanding applications. The 5A system current and 3A charging capability make it suitable for tablets and large power banks. I've used this part in several tablet designs with excellent results. The USB PD support is a key feature - it can handle 9V and 12V PD input for fast charging. The power path management is robust, seamlessly switching between sources without glitching the system. Key design tips: use a quality inductor for the switching charger (4.7μH), ensure adequate input capacitance for high-current transients, and pay attention to thermal design - the QFN-24 package needs good thermal vias to inner planes. The I2C interface provides comprehensive control and monitoring. This is a powerful solution for high-current portable applications."
High-current power path IC with 5A system current and USB PD support
— David Wang, BeiLuo
Frequently Asked Questions
What USB PD voltages does SC5350 support?
The SC5350 supports USB PD input: (1) 5V - Standard USB voltage for normal charging. (2) 9V - Medium power PD for faster charging. (3) 12V - High power PD for maximum charging speed. (4) Automatic detection - Detects and negotiates PD voltage automatically. (5) Current capability - Up to 3A at 5V, 2A at 9V, 1.5A at 12V. This flexibility enables optimal charging from various PD sources.
Contact LiTong for USB PD implementation guidance.
What thermal design is needed for 5A operation?
Thermal design for SC5350 at high current: (1) PCB copper - Minimum 1.5 sq in connected to thermal pad. (2) Thermal vias - Dense array of vias under QFN-24 pad. (3) Inductor - Low DCR inductor for charger to minimize losses. (4) Airflow - Consider forced airflow for continuous 5A operation. (5) Temperature monitoring - Use die temperature readout via I2C. (6) Derating - Reduce current at high ambient temperatures. Proper thermal design ensures reliable high-current operation.
Contact LiTong for thermal design optimization.
FAQ 3 for SC5350?
This is additional FAQ information for SC5350. Contact LiTong for detailed technical support and application guidance.
Contact LiTong for technical support.
FAQ 4 for SC5350?
This is additional FAQ information for SC5350. Contact LiTong for detailed technical support and application guidance.
Contact LiTong for technical support.
FAQ 5 for SC5350?
This is additional FAQ information for SC5350. Contact LiTong for detailed technical support and application guidance.
Contact LiTong for technical support.