1 General description

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.

2 Features and benefits

• 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 –40 °C to 150 °C TJ

• 32-Ld 5 mm x 5 mm QFN

• AEC-Q100 Grade-1 Qualified

3 Applications

QM to ASIL D automotive applications such as:

• Infotainment / cluster / driver awareness

• Telematics

• V2X

• Radar

• Vision

• ADAS

• Sensor fusion