DESCRIPTION

· The AS3722 is a compact System PMU designed for battery-powered mobile devices, supporting up to 20 high current rails.

· It integrates 4 DCDC buck converters and 11 low noise LDOs, with programmable supply voltages via a serial control interface.

· Operates at 3-4MHz with 0.47uH coils, reducing cost and PCB space.

· Features 3 DCDC buck controllers suitable for processor currents from 5A to 32A, with a multi-phase topology for fast load transient responses.

· Single supply voltage ranges from 2.7V to 5.5V.

FEATURES

· Compact design with small coils for IO and memory voltage generation.

· 4 DCDC step-down regulators (3-4MHz) with outputs ranging from 0.6V to 3.35V.

· High current generation using external power stages to minimize PMIC power dissipation.

· 3 DCDC step-down controllers with DVM outputs from 0.6V to 1.5V.

· 11 universal LDOs with various output ranges and currents.

· Ultra low-power oscillator with no external capacitors required.

· RTC with 1μA total power consumption, programmable alarm, auto wake-up, and repeating alarms.

· 32kHz output to peripherals.

APPLICATIONS

· Ideal for battery-powered mobile devices requiring multiple high current rails.

· Suitable for applications needing compact and efficient power management solutions.

· Used in systems requiring fast load transient responses and minimized external component footprint.

· Applicable in designs where ultra low-power consumption and programmable voltage rails are essential.