A8600

A8600 Quadruple Output Regulator with Two High-Side Switches, BU/ACC Voltage Detectors, and Mute Delay FEATURES AND BENEFITS Four independent, high current switching regulators Adjustable 1.0 A/±1.5% always-on asynchronous buck regulator with an integrated 150 mΩ MOSFET (SW1) ▫ Employs PFM to deliver 3.3 V/40 µA while drawing less than 50 µA from VIN of 12 V ▫ Operates down to at least 3.6 VIN Adjustable 1.5 A/±1.5% asynchronous buck regulator with an integrated 120 mΩ high-side MOSFET (SW2) Adjustable 2.0 A/±1.5% asynchronous buck regulator with an integrated 110 mΩ MOSFET (SW3) Adjustable ±1.5% synchronous buck controller with integrated gate drivers and current sensing (SW4) Fixed 425 kHz, interleaved PWM switching frequency EN/SYNC input for PWM frequency scaling Adjustable soft-start time for each switching regulator All switching regulators provide pre-bias startup with zero reverse current All switching regulators have overvoltage protection External compensation for all switching regulators Continued on the next page… PACKAGE: 48-pin LQFP (suffix JP) DESCRIPTION Designed to provide the power supply requirements of next generation car audio and infotainment systems, the A8600 provides all the control and protection circuitry to produce four high current regulators, each with ±1.5% accuracy. The A8600 includes control circuitry to implement three adjustable, asynchronous buck regulators with integrated MOSFETs. Also, the A8600 provides the contro...