ADP3180JRU

Product Summary

GENERAL DESCRIPTION;The ADP3180 is a highly efficient multiphase synchronous buck switching regulator controller optimized for converting a 12 V 
main supply into the core supply voltage required by high performance Intel processors. It uses an internal 6-bit DAC to read 
a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 0.8375 V and 
1.6 V, and uses a multimode PWM architecture to drive the logic level outputs at a programmable switching frequency that can be 
optimized for VR size and efficiency. The phase relationship of the output signals can be programmed to provide 2-, 3-, or 4-phase 
operation, allowing for the construction of up to four complementary buck switching stages.
The ADP3180 also includes programmable no-load offset and  slope functions to adjust the output voltage as a function of the 
load current so that it is always optimally positioned for a system transient. The ADP3180 also provides accurate and reliable short  circuit protection, adjustable current limiting, and a delayed  Power Good output that accommodates on-the-fly output voltage  changes requested by the CPU.ADP3180 is specified over the commercial temperature range of  0°C to 85°C and is available in a 28-lead TSSOP package.

Parametrics

ABSOLUTE MAXIMUM RATINGS*
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +15 V
FBRTN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
VID0–VID5, EN, DELAY, ILIMIT, CSCOMP, RT, 
PWM1–PWM4, COMP . . . . . . . . . . . . . . . . –0.3 V to +5.5 V
SW1–SW4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 V to +25 V
All Other Inputs and Outputs . . . . . . . . . –0.3 V to VCC + 0.3 V
Operating Ambient Temperature Range . . . . . . . . 0°C to 85°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . 125°C
Storage Temperature Range  . . . . . . . . . . . . . . –65°C to +150°C
Junction to Air Thermal Resistance (JA) . . . . . . . . . . . 100°C/W
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . . . 300°C
Vapor Phase (60 sec)  . . . . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220℃

Features

FEATURES:
Selectable 2-, 3-, or 4-Phase Operation at up to 1 MHz per Phase ±14.5 mV 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