FS5600 Automotive buck regulator and controller

FS5600 Automotive buck regulator and controller

The FS5600 integrates a battery connected DC-DC controller with external FETs and a battery connected DCDC converter with internal FETs. It also offers functional safety features such as independent voltage monitors, windowed watchdog timer, I/O monitoring via ERRMON and FCCU, and built-in self-test.

Features

• 2 x high-voltage buck converters:
  – Buck controller - external FETs - 900 mA gate drive - up to 15 A load capability
  – Buck regulator - internal FETs - 3 A+ load capability
  – ±2 % output accuracy
  – 250 kHz to 3 MHz switching frequency
• High-efficiency PFM mode
• Safety features:
  – Available in enhanced ASIL B, ASIL B, and QM variations
  – Two internal and up to four high-accuracy external voltage monitors
  – Windowed watchdog timer
  – ERRMON and FCCU monitoring
  – 2 x PGOOD and 1 x FS0B outputs
  – ABIST and LBIST for latest failure check
• GPIOs for seamless operation with PF PMICs
• Rated from .