ADP3168
FEATURES
Selectable 2-, 3-, or 4-phase operation at up to 1 MHz per phase ±10 m V worst-case differential sensing error over temperature Logic-level PWM outputs for interface to external high power drivers Active current balancing between all output phases Built-in Power Good/crowbar blanking supports On-the-fly VID code changes 6-bit digitally programmable 0.8375 V to 1.6 V output Programmable short-circuit protection with programmable latch-off delay
FUNCTIONAL BLOCK DIAGRAM
RAMPADJ
UVLO SHUTDOWN AND BIAS
OSCILLATOR SET EN
RESET
DAC +150m V CMP RESET CSREF CURRENTBALANCING CIRCUIT CMP DAC
- 250m V CMP RESET 2-, 3-, 4-PHASE DRIVER LOGIC RESET
PWM1
PWM2
PWM3
PWM4
APPLICATIONS
Desktop PC power supplies for: Next generation Intel® processors VRM modules
DELAY
CROWBAR CURRENT LIMIT
PWRGD
SW1
SW2
GENERAL DESCRIPTION
The ADP3168 is a highly efficient, multiphase, synchronous buck switching regulator...
