TPS54560-Q1 Automotive 60V, 5A, Step-Down Regulator With Integrated High Side MOSFET | TI.com

TPS54560-Q1 (NRND) Automotive 60V, 5A, Step-Down Regulator With Integrated High Side MOSFET

 

Description

The TPS54560-Q1 is a 60-V, 5-A, step-down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 65 V 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.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54560-Q1 is available in an 8-pin thermally enhanced HSOIC PowerPAD package.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C3B
  • High Efficiency at Light Loads With Pulse-Skipping
    Eco-Mode™
  • 92-mΩ High-Side MOSFET
  • 146-µA Operating Quiescent Current and 2-µA
    Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads with Integrated BOOT
    Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V 1% Internal Voltage Reference
  • 8-Pin HSOIC with PowerPAD™ Package
  • –40°C to 150°C TJOperating Range
  • Supported by WEBENCH® Software Tool