60V input 5V @3A output DC-DC Converter for Industrial and Automotive

Rajkumar Sharma        
1977
Project tested

This is a 60 V 3A step down DC-DC converter. Sample applications are: 12 V, 24 V and 48 V Industrial, Automotive and Communications Power Systems. The TPS54360 is a 60 V, 3 A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 65V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 146 μA. Shutdown supply current is reduced to 2 μA when the enable pin is pulled low. Under voltage lockout is internally set at 4.3 V but can be increased using the enable pin. The output voltage start up ramp is internally controlled to provide a controlled start up and eliminate overshoot. A wide switching frequency range allows either efficiency or external component size to be optimized. Frequency fold back and thermal shutdown protects internal and external components during an overload condition.

Note: The output voltage is set by a resistor divider from the output node to the FB terminal. It is recommended to use 1% tolerance or better divider resistors, choose R2, R4 for other output voltage.

Features

  • Supply Input 9V-60V
  • Output 5V (Output Voltage adjustable with R2, R4)
  • Output Current 3A
  • Current Mode Control DC-DC Converter
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode™
  • Low Dropout at Light Loads with Integrated BOOT Recharge FET
  • 146 μA Operating Quiescent Current
  • Internal Soft-Start
  • Accurate Cycle-by-Cycle Current Limit
  • Thermal, Overvoltage, and Frequency Fold back Protection

Schematic

Parts List

Connections

Photos

PCB

2 Response on “60V input 5V @3A output DC-DC Converter for Industrial and Automotive

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.