This product is a 4-terminal synchronous rectification BUCK/BOOST automatic buck-boost DC/DC conversion controller. It supports both BUCK (step-down) and BOOST (step-up) operating modes, making it suitable for applications where the input voltage may be higher, lower, or equal to the output voltage. The controller ensures seamless, low-noise transitions between operating modes. With current-mode control and adjustable input and output voltages, it employs a high-side current sensing method for ground-sharing applications. This makes it an ideal choice for regulators, battery, and supercapacitor chargers in automotive, industrial, telecommunications, and battery-powered systems.
1. Features in BUCK (Step-Down) Mode:
1.1 Maximum Output Power: 900W
1.2 Input Current Adjustment: 0~60A DC ±3%
1.3 Output Current Adjustment: 0~60A DC ±3%
1.4 Voltage Step-Down Ratio: 2~25 times (VIN ÷ VOUT)
1.5 Maximum Conversion Efficiency: 98%
2. Features in BOOST (Step-Up) Mode:
2.1 Maximum Output Power: 750W
2.2 Input Current Adjustment: 0~60A DC ±3%
2.3 Output Current Adjustment: 0~50A DC ±3%
2.4 Voltage Step-Up Ratio: 2~5 times (VOUT ÷ VIN) (For 3-5x voltage boost, reduce the rated output power by lowering the output current.)
2.5 Maximum Conversion Efficiency: 95%
3. Common Features:
3.1 Input Voltage Range: 9~50V DC ±1%
3.2 Output Voltage Adjustment: 2~50V DC ±1%
3.3 Input Undervoltage Adjustment: 0~50V DC ±1%
3.4 Input Overvoltage Adjustment: 0~50V DC ±1%
3.5 Solar Voltage Tracking Adjustment: 0~50V DC ±1%
3.6 Startup Delay Time: Adjustable from 5 to 999 seconds
3.7 Temperature Protection: Fan turns on at 45℃, turns off at ≤40℃ Shutdown at 90℃, restart at ≤60℃
3.8 Operating Temperature: -30℃ to 85℃
3.9 torage Temperature: -40℃ to 105℃