The PMP9637 4-phase boost power supply enables high-efficiency boost dc/dc conversion of an 8.5V to 18V input Automotive battery voltage to 44V output at 17 Amperes in a compact form factor for Audio applications. The TPS40090 4-phase PWM controller is used with two (2) UCC27324D 4A dual FET drivers and CSD18534Q5A 60V NexFETs to deliver 748W output power in only 120mm x 70mm.
• >95% Efficiency at 14VIN, 44Vout/7A.
• 120mmx70mm total power supply area
• 200mV pk-to-pk output voltage load transient response
• 10mV pk-pk output voltage
• Smooth monotonic start up
• 4-phase interleaving enables lower input and ouput ripple current, faster load transient response, improved power handling capability, improved thermal performance, and higher reliability
- >95% Efficiency at 14VIN, 44Vout/7A.
- 120mmx70mm total power supply area
- 200mV pk-to-pk output voltage load transient response
- 10mV pk-pk output voltage
- Smooth monotonic start up
- 4-phase interleaving enables lower input and ouput ripple current, faster load transient response, improved power handling capability, improved thermal performance, and higher reliability