JW5060
10A synchronous buck converter with 5V-28V input for high-power industrial applications
Product Overview
Description
The JW5060 is a high-current synchronous buck converter designed for demanding industrial applications. It operates from 5V to 28V input and delivers up to 10A continuous output current, making it ideal for high-power point-of-load regulation.
The device uses valley current mode control for fast transient response and easy compensation. The switching frequency is programmable from 200kHz to 1MHz. The JW5060 includes adjustable current limit, allowing optimization for specific inductor and application requirements.
Protection features include input UVLO, output OVP, cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown. The device is available in a thermally enhanced QFN-32 package suitable for high-current applications.
Product Series
JW
Primary Application
Industrial automation
Key Features
- 10A continuous output current
- Wide 5V to 28V input range
- Up to 96% efficiency
- Valley current mode control
- Adjustable current limit
- Hiccup mode short protection
- External frequency sync
- Power-good output
Specifications
| Input Voltage Range | 5V - 28V |
|---|---|
| Output Voltage Range | 0.6V - 24V |
| Output Current | 10A max |
| Efficiency | Up to 96% |
| Switching Frequency | 200kHz - 1MHz |
| Current Limit | Adjustable |
| Operating Temperature | -40°C to +125°C |
| Package | QFN-32 EP |
Applications
Industrial automation
Industrial automation and control
Telecom base stations
Electronic system design
Server and storage systems
Electronic system design
FPGA and processor power
Electronic system design
High-current point-of-load
Electronic system design
FAE Expert Insights
"The JW5060 is a powerhouse buck converter for high-current applications. The 10A capability with up to 96% efficiency is impressive - I've used it to power FPGAs and processors in industrial systems. The valley current mode control provides excellent transient response; I've seen it handle 50% load steps with minimal overshoot. The adjustable current limit is useful for protecting the inductor and optimizing fault response. One critical design consideration: thermal management is essential at 10A. You need adequate copper area, thermal vias, and possibly airflow for continuous operation. I recommend at least 4-layer PCB with dedicated ground plane. The QFN package has good thermal performance when properly soldered. For the inductor, use a shielded part with low DCR - I typically use 1-2μH for 500kHz operation. Overall, an excellent high-current buck solution for industrial applications."
High-current 10A buck converter with excellent efficiency and transient response
— Steven Wang, BeiLuo
Frequently Asked Questions
What is the maximum output current of JW5060?
The JW5060 can deliver up to 10A continuous output current. This high current capability requires proper thermal management including adequate PCB copper area, thermal vias, and the exposed pad soldered to the ground plane. For continuous 10A operation, a 4-layer PCB with dedicated ground plane and possibly forced airflow is recommended.
10A continuous with proper thermal design; use 4-layer PCB with ground plane.
What is valley current mode control?
Valley current mode control senses inductor current during the off-time (valley) rather than peak current. This provides inherent cycle-by-cycle current limiting and allows easy compensation. The control loop responds quickly to load transients while maintaining stability with minimal external components.
Valley current mode provides fast transient response and easy compensation.
How do I set the current limit?
The JW5060 current limit is set by a resistor from the ILIM pin to ground. Calculate the resistor value based on your desired current limit using the formula in the datasheet. The adjustable current limit allows optimization for your specific inductor saturation current and application requirements.
Use resistor from ILIM to ground; calculate value from datasheet formula.
What is hiccup mode protection?
Hiccup mode protection activates during sustained over-current or short-circuit conditions. Instead of continuous current limiting, the converter shuts down for a period, then attempts to restart. This reduces power dissipation during faults and prevents inductor saturation. If the fault persists, the cycle repeats.
Hiccup mode reduces power dissipation during faults; protects converter and load.
What inductor should I use for 10A operation?
For 10A operation, select an inductor with saturation current rating at least 12-13A (30% margin). Use shielded inductor with low DCR (under 10mΩ) for best efficiency. Inductance value depends on frequency - typically 1-2μH for 500kHz, 0.5-1μH for 1MHz. Ensure adequate PCB copper for inductor current.
Saturation current >12A; shielded with low DCR; 1-2μH for 500kHz.
Can JW5060 be paralleled for higher current?
The JW5060 is not designed for direct paralleling. For currents above 10A, consider using multiple converters with current sharing or select a higher current controller with external FETs. Some designs use interleaved converters with phase shifting to reduce ripple and improve transient response.
Not designed for paralleling; use multiple converters or higher current controller.
What thermal management is needed for 10A?
For 10A continuous operation: 1) Use 4-layer PCB with dedicated ground plane, 2) Connect exposed pad to ground with multiple thermal vias, 3) Provide adequate copper area (minimum 2 sq in), 4) Consider forced airflow for high ambient temperatures, 5) Use thermal interface material if heatsink is required. Monitor junction temperature during testing.
4-layer PCB, thermal vias, copper area, airflow; monitor junction temperature.