60V input to 5V – 3A output DC-DC Converter for Industrial and Automotive using TPS54360

  • Rajkumar Sharma
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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.

This DC-DC converter has some thermal issues at maximum output current and we suggest to include a small fan for sufficient cooling. It can only provide 1A within safe temperature margins (without fan).

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
  • PCB Dimensions 42.38mm x 16.21mm

Schematic

Parts List

Connections

Photos

TPS54360 Datasheet

tps54360b

PCB

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Valentina

Can I order this item to Bulgaria

KK

Hi How to order this?

Ramesh vk

What is the value of R2 & R4 for 12v output?

Ramesh vk

In FEATURES paragraph there is change R3 & R4 for output voltage,but in paragraph 8.2.2.9 there is change R5 & R6 value.Kindly help me out with by choosing which resistors and there values for output voltage of 12v.

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