Description

I2C Quad Synchronous Step-Down DC/DC Regulator 2 x 600mA, 2 x 400mA Features: Four Independent I2C Controllable Step-Down Regulators (2 x 600mA, 2 x 400mA) Two I2C Programmable Feedback Voltage Regulators (R600A, R400A): VFB 425mV to 800mV Two I2C Programmable Output Voltage Regulators (R600B, R400B): VOUT 600mV to 3.775V Programmable Modes: Pulse Skip, LDO, Burst Mode®, Forced Burst Mode Operation Quiescent Current <100uA (All Regulators Enabled in LDO Mode) Fixed 2.25MHz Switching Frequency (Pulse Skip Mode) Slew Limiting Reduces Switching Noise Power-On Reset Output for Regulator R600A Small, Thermally Enhanced, 20-Lead 3mm x 3mm QFN Package