ADP3192
ADP3192 is 8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller manufactured by Analog Devices.
FEATURES
Selectable 2-, 3-, or 4-phase operation at up to 1 MHz per phase ±7.7 m V worst-case differential sensing error over temperature Logic-level PWM outputs for interface to external high power drivers Enhanced PWM flex mode for excellent load transient performance Active current balancing between all output phases Built-in power-good/crowbar blanking supports on-the-fly VID code changes Digitally programmable 0.5 V to 1.6 V output supports both VR10.x and VR11 specifications Programmable short-circuit protection with programmable latch-off delay
FUNCTIONAL BLOCK DIAGRAM
RT RAMPADJ
12 13
SHUNT REGULATOR UVLO SHUTDOWN GND 18 850m V EN
OSCILLATOR
+
- 19 OD
- + DAC + 150m V CSREF DAC
- 350m V +
- - +
SET EN RESET RESET
30 PWM1 29 PWM2
CURRENT BALANCING CIRCUIT
- +
- +
- +
28 PWM3 RESET 2/3/4-PHASE DRIVER LOGIC 27 PWM4 RESET
PWRGD
DELAY
CROWBAR
CURRENT LIMIT
25 SW1
APPLICATIONS
Desktop PC power supplies for Next generation Intel® processors VRM modules
TTSENSE 10 VRHOT 9 VRFAN 8
THERMAL THROTTLING CONTROL
24 SW2 23 SW3 22 SW4 17 CSP
ILIMIT 11 DELAY
CURRENT MEASUREMENT AND...