ADP3188JRUZ

Product Summary

GENERAL DESCRIPTION :The ADP3188 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. The part 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. It 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 the construction of up to four complementary buck
switching stages. The ADP3188 also includes programmable no-load offset and  slope functions to adjust the output voltage as a function of
the load current, so it is always optimally positioned for a system transient. The ADP3188 also provides accurate and reliable 
short-circuit protection, adjustable current limiting, and a delayed power good output that accommodates on-the-flyoutput voltage changes requested by the CPU.
The ADP3188 is specified over the commercial temperature range of 0°C to 85°C and is available in 28-lead, TSSOP and QSOP packages.

Parametrics

ABSOLUTE MAXIMUM RATING:
VCC  :-0.3 V to +15 V 
FBRTN  :-0.3 V to +0.3 V
VID0 to VID5, EN, DELAY, ILIMIT, CSCOMP,  :-0.3 V to +5.5 V 
 RT, PWM1 to PWM4, COMP SW1 – SW4 : -5 V to +25 V 
All Other Inputs and Outputs  :-0.3 V to VCC + 0.3 V
Storage Temperature : -65°C to +150°C 
Operating Ambient Temperature Range : 0°C to 85°C 
Operating Junction Temperature :  125°C 
Thermal Impedance (θJA) : 100°C/W 
Lead Temperature 
Soldering (10 sec)  :300°C 
Infrared (15 sec)  :260°C

Features

FEATURES 
(1)Selectable 2-, 3- or 4-phase operation at up to 1 MHz per phase ; 
(2)±9.5 mV worst-case differential sensing error over temperature ; 
(3)Logic-level PWM outputs for interface to external high power drivers ; 
(4)Active current balancing between all output phases ; 
(5)Built-in power good/crowbar blanking supports on-the-fly VID code changes ; 
(6)6-bit digitally programmable 0.8375 V to 1.6 V output ; 
(7)Programmable short-circuit protection with programmable latch-off delay