The MAX8967 is an µPMIC with two DC-to-DC step-down switching converters and six remote capacitor-capable LDOs. The step-down converters deliver up to 2A of output current independently. Two of the LDOs deliver a load current up to 300mA, while the remaining four deliver up to 150mA. Both step-down converters have remote sense, allowing loads to be placed away from the IC. The IC operates over a 2.6V to 5.5V input supply range. Fixed-frequency 4.4MHz PWM operation and clocks that are 180° out of phase permit the use of small external components. Under light load conditions, the step-down converters automatically switch to skip mode operation. In skip mode operation, switching occurs only as needed, allowing efficient operation. Placing either of the step-down converters into green mode reduces the quiescent current consumption of that converter to 5µA (typ). The IC supports dynamic adjustment of the output voltage through its I²C interface. Each step-down converter has two register settings for output voltage and a setting for ramp rate. Also, each step-down converter has a dedicated enable pin and a dedicated VID pin to toggle between the two programmed output voltages. Additionally, an interrupt output is provided, allowing the IC to signal its master. Applications * Cellular Handsets and Smartphones * Portable Devices * Tablets * Multi-Output PMIC in a Compact Package * Two 2A Step-Down Converters with Remote Output Voltage Sensing * Two 300mA LDOs * Four 150mA LDOs * < 1µA Shutdown Current * 2.32mm x 2.44mm Package * Versatile Step-Down Converters * Programmable Output Voltage (0.6V to 3.3875V) Through I²C Bus * Programmable Output Voltage Slew Rate (12.5mV/µs to 50mV/µs) * Dynamic Switching Between Two Output Voltages Through VID Pins * Efficient Step-Down Converters * Over 95% Efficiency with Internal Synchronous Rectifier * Automatic Skip Mode at Light Loads * Low 61µA (typ) Quiescent Current * 5µA (typ) Green Mode per Step-Down Converter * Programmable LDOs * Programmable Output Voltage (0.8V to 3.95V in 50mV Steps) * Programmable Soft-Start Slew Rate (5mV/µs–100mV/µs) * Reduces Component Size and Board Area Solution * 4.4MHz Step-Down Switching Allows for 1µH Inductors * COUT = 1µF for All LDOs * Reduced Board Space with Remote Capacitor LDOs * Internal Feedback for Step-Down Converters and LDOs