A8591
Wide Input Voltage, 2 A Buck
Regulator Family with Low-IQ Mode
FEATURES AND BENEFITS
• Automotive AEC-Q100 qualified • Withstands surge input to 40 VIN for load dump • Operates down to 3.
4 VIN (typ), 3.
6 VIN (max) for idle stop • Utilizes pulse-frequency modulation (PFM) for low-IQ mode • 10 μA Sleep mode (automatic PWM / Low-IQ PFM
mode selection) • Fixed output voltage options: 3.
3 or 5 V with ±1%
accuracy • Delivers up to 2 A of output current • Integrated 110 mΩ high-side MOSFET • Adjustable switching frequency from 300 kHz to 2.
4 MHz • EMI reduction features:
□□Frequency dithering □□Controlled switching node • External synchronization capability • Maximum duty cycle for low dropo...