FEATURES
1-, 2-, or 3-phase operation at up to 750 kHz per phase ±8 mV worst-case differential sensing error over temperature Interleaved PWM outputs for driving external high power MOSFET drivers Automatic power-saving modes maximize efficiency during light load and deeper sleep operation Soft transient control reduces inrush current and audio noise Active current balancing between output phases Independent current limit and load line setting inputs for additional design flexibility Built-in power-good masking supports VID on-the-fly 7-bit digitally programmable 0.3 V to 1.5 V output Overload and short-circuit protection with programmable latch-off delay Built-in clock enable output delays CPU clock until CPU supply voltage stabilizes EN 1 FUNCTIONAL BLOCK DIAGRAM VCC 31 VRPM RRPM RT RAMPADJ 12 13 14 15 UVLO SHUTDOWN AND BIAS ADP3207 OSCILLATOR CMP GND 20 TTSENSE 30 + – SET EN RESET 1/2/3 – PHASE DRIVER LOGIC RESET 26 PWM1 VRTT 29 THERMAL THROTTLING CONTROL CURRENT BALANCING CIRCUIT C...
Analog Devices
