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ADP3162, ADP3162J, ADP3162JR

Table of contents:
Info of ADP3162
Info of ADP3162J
Info of ADP3162JR

ADP3162, ADP3162J, ADP3162JR Selling Leads, Datasheet

MFG:AD Package Cooled:SMD D/C:00-99

ADP3162, ADP3162J, ADP3162JR Datasheet download

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Part Number: ADP3162

MFG: AD

Package Cooled: SMD

D/C: 00-99

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ADP3162 General Description

The ADP3162 is a highly efficient dual output synchronous buck switching regulator controller optimized for converting a 5 V or 12 V main supply into the core supply voltage required by high-performance processors such as Tualatin. The ADP3162 uses an internal 5-bit DAC to read a voltage identification (VID)
code directly from the processor, which is used to set the output voltage between 1.05 V and 1.825 V. The ADP3162 uses a current mode PWM architecture to drive two logic-level outputs at a programmable switching frequency that can be optimized for VRM size and efficiency. The output signals are 180 degrees out of phase, allowing for the construction of two complementary buck switching stages. These two stages share the dc output current to reduce overall output voltage ripple. An active current balancing function ensures that both phases carry equal portions of the total load current, even under large transient loads, to minimize the size of the inductors.

The ADP3162 also uses a unique supplemental regulation technique called active voltage positioning to enhance load transient performance. Active voltage positioning results in a dc/dc converter that meets the stringent output voltage specifications for high performance processors, with the minimum number of output capacitors and smallest footprint. Unlike voltage-mode and standard current-mode architectures, active voltage positioning adjusts the output voltage as a function of the load current so that it is always optimally positioned for a system transient. The ADP3162 also provides accurate and reliable short circuit protection and adjustable current limiting. The ADP3162 is specified over the commercial temperature range of 0°C to 70°C and is available in a 16-lead narrow body SOIC package.

ADP3162 Maximum Ratings

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +15 V
CS+, CS . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VCC + 0.3 V
All Other Inputs and Outputs . . . . . . . . . . . . 0.3 V to +10 V
Operating Ambient Temperature Range . . . . . . 0°C to 70°C
Operating Junction Temperature . . . . . . . . . . . . . . . . 125°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
_JATwo-Layer Board . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C/W
Four-Layer Board . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W
Lead Temperature (Soldering, 10 sec) . . . . . . . . . .. . 300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C

ADP3162 Features

ADOPT™ Optimal Positioning Technology for Superior
   Load Transient Response and Fewest Output
   Capacitors
Complies with VRM 8.5 with Lowest System Cost
Active Current Balancing Between Both Output Phases
5-Bit Digitally Programmable 1.05 V to 1.825 V Output
Dual Logic-Level PWM Outputs for Interface to External High-Power Drivers
Total Output Accuracy 0.8% Over Temperature
Current-Mode Operation
Short Circuit Protection
Power Good Output
Overvoltage Protection Crowbar Protects
   Microprocessors with No Additional

ADP3162 Typical Application

Desktop PC Power Supplies for:
Intel Tualatin Processors
VRM Modules

ADP3162 Connection Diagram

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