4.5 V to 20 V Input, 15 A, 25 A, 40 A microBuck® DC/DC Converter With PMBus Interface

Features

• Versatile
• Single supply operation from 4.5 V to 20 V input voltage
• Scalable solution with continuous output current of 40 A (SiC450), 25 A (SiC451), 15 A (SiC453)
• Continuous current of SiC451 by VOUT range - 30 A at VOUT < 2.5 V - 25 A at VOUT ≥ 2.5 V
• Adjustable output voltage from 0.3 V to 12 V
• Built in 5 V regulator for internal circuits and driver supply
• 1 % output voltage accuracy over temperature
• 0.5 % output accuracy at VOUT = 3.3 V / 1.8 V, TA = 25 °C
• Ultrafast transient response
• Highly efficient
• 98 % peak efficiency
• Optional power save mode
• Highly configurable
• PMBus 1.3 compliant with 1 MHz bus speed
• Internal NVM
• VOUT adjustability and reading resolution of 2 mV
• Supports over 50 PMBus commands
• Supports in phase or 180° out of phase synchronization
• Output voltage source and sink capability
• Robust and reliable
• PVIN, VOUT, IIN and IOUT and temperature reporting
• Over current protection in pulse-by-pulse mode
• Output over and under voltage protection
• Over temperature protection with hysteresis
• Differential output remote sensing