A4408
Adjustable Frequency Buck or Buck-Boost Pre-
Regulator with a Synchronous Buck, 3 Internal LDOs, Watchdog Timer, NPOR, and FF0/FF1
FEATURES AND BENEFITS
• Automotive AEC-Q100 qualified • 2.
8 to 36 VIN operating range, 40 VIN maximum • Buck or buck-boost pre-
regulator (VREG) • Adjustable PWM switching frequency: 250 kHz to 2.
4 MHz • PWM frequency can be synchronized to external clock • Adjustable synchronous buck
regulator (1.
25 VNOM) • 3.
3V (3V3) and 5V (V5) internal LDO
regulators with
foldback short-circuit protections • 5V (V5P) internal tracking LDO
regulator with foldback
short-circuit and short-to-battery protections • TRACK sets either 3V3 or V5 as the reference for V5P...