SY6280AAAC
| Part Number | SY6280AAAC |
| Manufacturer | Silergy |
| Category | Power Management IC > Power Distribution Switch > Load Switch |
| Description | Ultra-low RDS(ON) high-side load switch with programmable current limit, integrated protection and reverse current blocking, 2.4V~5.5V input range, SOT-23-5 package for battery-powered devices and portable electronics |
Product Overview
The SY6280AAAC is a high-performance high-side load switch manufactured by Silergy, designed to manage power distribution in battery-powered systems. Featuring ultra-low on-resistance RDS(ON), this device minimizes power loss during normal operation while providing precise programmable current limiting to protect the power source from overcurrent and short-circuit conditions. It integrates built-in thermal shutdown and reverse current blocking functions to enhance system reliability. With a wide 2.4V to 5.5V operating voltage range and compact SOT-23-5 package, the SY6280AAAC is widely used in smartphones, tablets, wearable devices, portable medical equipment and other low-voltage consumer electronics.
Core Advantages
- Ultra-Low On-Resistance Design: Minimizes power loss and voltage drop, improving overall system efficiency and battery life.
- Programmable Current Limit: Provides flexible protection against overcurrent and short-circuit events, safeguarding the power supply and downstream components.
- Integrated Protection Functions: Combines thermal shutdown and reverse current blocking to prevent damage from overheating and reverse voltage conditions.
- High-Level Enable Control: Active-high enable input allows easy control of power switching via microcontrollers or logic circuits.
- Compact SOT-23-5 Package: Small form factor saves PCB board space, ideal for space-constrained portable and wearable electronic devices.
- Wide Operating Voltage Range: Supports 2.4V~5.5V input, compatible with most single-cell lithium battery systems and 3.3V/5V low-voltage applications.
Key Specifications
| Brand | Silergy |
| RoHS Status | RoHS Compliant |
| EDA/CAD Models | Symbols, Footprints, 3D Models Available |
| Warranty | 1 Year Standard Warranty |
| Package / Case | SOT-23-5 |
| Mounting Type | Surface Mount |
| Surface Marking / Silkscreen | QW*** |
| Topology Type | High-Side Load Switch with Current Limit |
| Operating Voltage Range | 2.4 V ~ 5.5 V DC |
| Channel Count | 1 Channel |
| Enable Control Logic | Active-High |
| Built-In Protection Features | Overcurrent Protection, Thermal Shutdown, Reverse Current Blocking |
| Operating Temperature Range | -40°C ~ 125°C |
Typical Applications
- Smartphones, Tablets and Portable Media Players
- Wearable Devices, Smartwatches and Bluetooth Earphones
- Portable Medical Equipment and Handheld Diagnostic Tools
- Low-Power IoT Devices and Wireless Sensor Nodes
- Battery-Powered Consumer Electronics and Peripheral Modules
- USB Power Distribution and Hot-Swap Circuits
- Industrial Control Boards and Low-Voltage Power Rails
Order & Shipping Info
- Minimum Order Quantity (MOQ): 1 Piece
- Shipping Time: Shipped within 1-2 business days
- Delivery Time: 3-7 working days worldwide
- Shipping Methods: DHL, UPS, FedEx, EMS
- Payment Methods: T/T (Bank Transfer), PayPal, Credit Card, Western Union
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q: What is the main function of SY6280AAAC?
A: It is a high-side load switch with programmable current limit, used to control power distribution and protect downstream circuits from overcurrent and short-circuit events.
Q: What is the operating voltage range of SY6280AAAC?
A: The device supports an operating voltage range of 2.4V to 5.5V DC, suitable for most single-cell lithium battery applications.
Q: Does SY6280AAAC have built-in protection functions?
A: Yes, it integrates overcurrent protection, thermal shutdown and reverse current blocking functions to enhance system reliability.
Q: What is the enable control logic of SY6280AAAC?
A: It uses active-high enable logic, meaning the switch turns on when the enable pin is pulled high.
Q: What package is SY6280AAAC supplied in?
A: It is packaged in a compact SOT-23-5 surface mount package, ideal for space-constrained designs.
Q: Is SY6280AAAC RoHS compliant?
A: All production batches of SY6280AAAC comply with RoHS lead-free environmental standards.

