Power Switch ICs – Power Distribution Integ. Load Switch

FDC6331L – 2.8A P-Channel Load Switch – onsemi

Optimize power management in compact designs with the onsemi FDC6331L Power Distribution Switch. This high-side load driver IC delivers robust 2.8A current handling with ultra-low 34mOhm Rds(On), minimizing voltage drop and heat generation. Engineered for reliability in space-constrained applications, it features reverse-current blocking and thermal protection. PCX ensures genuine onsemi components with same-day shipping and technical support.

Key Features

• 2.8A Continuous Output Current for demanding loads
• Ultra-Low 34mOhm Rds(On) maximizes efficiency
• Wide Voltage Range: 2.5V to 8V load compatibility
• P-Channel MOSFET with high-side configuration
• Industrial Temperature Range: -55°C to +150°C (TJ)
• Non-Inverting On/Off Interface for simple control logic

Technical Details

This single-output general-purpose switch uses a 1:1 input-to-output ratio with integrated P-Channel MOSFET. The SuperSOT™-6 (TSOT-23-6) surface-mount package enables high-density PCB layouts. On/Off control requires minimal external components, while built-in thermal shutdown and reverse-current blocking enhance system protection. Ideal for hot-swapping and power sequencing.

Typical Applications

• Portable device power gating (tablets, wearables)
• USB power management and load switching
• Battery protection circuits
• Peripheral hot-swap control
• Industrial automation systems

About onsemi

onsemi (Nasdaq: ON) is a global leader in power management and sensor technologies, driving innovations in automotive, industrial, and cloud-power ecosystems. With over 50 years of semiconductor expertise, onsemi holds 30,000+ patents and operates certified manufacturing facilities worldwide.

The company’s ISO 9001/TS 16949 certified processes guarantee consistent quality and reliability. onsemi’s Power Management ICs are renowned for energy efficiency and robustness, making them the preferred choice for mission-critical applications requiring long-term component stability.

About Power Distribution Switches

Power distribution switches (load drivers) are integrated circuits that function as electronic relays, enabling precise control of power rails in modern electronics. They replace mechanical switches and discrete MOSFETs by integrating control logic, protection features, and power transistors into single-chip solutions.

These ICs prevent inrush current damage through slew-rate control, offer thermal/overcurrent protection, and minimize voltage drops. Critical for power sequencing, hot-swapping, and safety-critical systems, they extend device lifespans while reducing PCB footprint by up to 70% compared to discrete implementations.

Packaging Options

Available in industry-standard formats for automated assembly: Tape & Reel (TR), Cut Tape (CT), and Digi-Reel®. Specify preferred packaging during checkout.

FAQs

Q: What is the advantage of a P-Channel vs. N-Channel load switch?
A: P-Channel devices like the FDC6331L simplify gate driving in high-side configurations since they don’t require charge pumps or bootstrap circuits.

Q: Does this IC include overtemperature protection?
A: Yes, integrated thermal shutdown automatically disables the output at excessive junction temperatures.

Q: Can I parallel multiple FDC6331L devices for higher current?
A: Yes, parallel operation is supported for current scaling. Ensure proper PCB layout for thermal management.

Q: What’s the typical turn-on delay time?
A: Refer to the PCX-hosted datasheet for detailed timing characteristics under various conditions.

Q: Is this suitable for automotive applications?
A: While industrial-rated, confirm AEC-Q100 compliance with onsemi’s automotive-grade variants for automotive use.

Q: How does reverse-current blocking work?
A: The integrated body diode is actively disabled when output voltage exceeds input voltage, preventing backflow.

⚠️ Low stock alert! Order genuine onsemi FDC6331L from PCX today for same-day shipping and dedicated technical support. Secure your supply now!

Product images are representational. Refer to datasheet for exact specifications.