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ADP3152 Datasheet

Part Number ADP3152
Manufacturers Analog Devices
Logo Analog Devices
Description 5-Bit Programmable Synchronous Switching Regulator Controller
Datasheet ADP3152 DatasheetADP3152 Datasheet (PDF)

a FEATURES 5-Bit Digitally Programmable 1.8 V to 3.5 V Output Voltage Dual N-Channel Synchronous Driver Total Output Accuracy ؎ 1% (0؇C to 70 ؇C) High Efficiency Current-Mode Operation Short Circuit Protection Power Good Output Integrated Overvoltage Protection Crowbar 16-Lead SOIC Package VRM 8.2 Compatible APPLICATIONS Desktop PC Power Supply for: Pentium II Processor Pentium Pro Processor Pentium Processor AMD–K6 Processor VRM Modules VCC +12V 22␮F 1␮F VCC R1 SD CMP R2 CCOMP 150pF AGND SENSE+.

  ADP3152   ADP3152






Part Number ADP3159
Manufacturers Analog Devices
Logo Analog Devices
Description 4-Bit Programmable Synchronous Buck Controllers
Datasheet ADP3152 DatasheetADP3159 Datasheet (PDF)

a FEATURES Optimally Compensated Active Voltage Positioning with Gain and Offset Adjustment (ADOPT™) for Superior Load Transient Response Complies with VRM 8.4 Specifications with Lowest System Cost 4-Bit Digitally Programmable 1.3 V to 2.05 V Output N-Channel Synchronous Buck Driver Two On-Board Linear Regulator Controllers Total Accuracy ؎0.8% Over Temperature High Efficiency Current-Mode Operation Short Circuit Protection Power Good Output Overvoltage Protection Crowbar Protects Microprocesso.

  ADP3152   ADP3152







Part Number ADP3158
Manufacturers Analog Devices
Logo Analog Devices
Description (ADP3158 / ADP3178) 4-Bit Programmable Synchronous Buck Controllers
Datasheet ADP3152 DatasheetADP3158 Datasheet (PDF)

www.DataSheet4U.com a FEATURES Optimally Compensated Active Voltage Positioning with Gain and Offset Adjustment (ADOPT™) for Superior Load Transient Response Complies with VRM Specifications with Lowest System Cost 4-Bit Digitally Programmable 1.3 V to 2.05 V Output N-Channel Synchronous Buck Driver Total Accuracy ؎0.8% Over Temperature Two On-Board Linear Regulator Controllers Designed to Meet System Power Sequencing Requirements High Efficiency Current-Mode Operation Short Circuit Protection .

  ADP3152   ADP3152







Part Number ADP3157
Manufacturers Analog Devices
Logo Analog Devices
Description 5-Bit Programmable Synchronous Controller
Datasheet ADP3152 DatasheetADP3157 Datasheet (PDF)

a 5-Bit Programmable Synchronous Controller for Pentium® III Processors ADP3157 FUNCTIONAL BLOCK DIAGRAM VCC DRIVE1 DRIVE2 PGND AGND PWRGD SENSE+ SENSE– DELAY NONOVERLAP DRIVE VREF +15% 2R CROWBAR IN CMPI Q S R gm VREF REFERENCE 1.20V VID0 SENSE– VID1 VID2 R VT1 VREF +5% VREF –5% FEATURES Active Voltage Positioning with Gain and Offset Adjustment Optimal Compensation for Superior Load Transient Response VRM 8.2, VRM 8.3 and VRM 8.4 Compliant 5-Bit Digitally Programmable 1.3 V to 3.5 V Output D.

  ADP3152   ADP3152







Part Number ADP3156
Manufacturers Analog Devices
Logo Analog Devices
Description Dual Power Supply Controller
Datasheet ADP3152 DatasheetADP3156 Datasheet (PDF)

a FEATURES Active Voltage Positioning with Gain and Offset Adjustment Optimal Compensation for Superior Load Transient Response Fixed 1.5 V, 1.8 V and 2.5 V Output Versions Dual N-Channel Synchronous Driver On-Board Linear Regulator Controller Total Output Accuracy ؎1% Over Temperature High Efficiency, Current-Mode Operation Short Circuit Protection Overvoltage Protection Crowbar Protects Loads with No Additional External Components Power Good Output SO-16 Package APPLICATIONS Desktop Computer S.

  ADP3152   ADP3152







Part Number ADP3155
Manufacturers Analog Devices
Logo Analog Devices
Description 5-Bit Programmable Triple Power Supply Controller
Datasheet ADP3152 DatasheetADP3155 Datasheet (PDF)

a 5-Bit Programmable Triple Power Supply Controller for Pentium® III Processors ADP3155 FUNCTIONAL BLOCK DIAGRAM VCC DRIVE1 DRIVE2 PGND AGND PWRGD SENSE+ SENSE– NONOVERLAP DRIVE SD CROWBAR IN OFF CMPI Q S R gm REFERENCE CMPT OFF-TIME CONTROL VIN SENSE– VLDO2 FB2 VLDO1 FB1 VREF +5% VT1 VREF VREF –5% DELAY VREF +15% 2R FEATURES Active Voltage Positioning with Gain and Offset Adjustment Optimal Compensation for Superior Load Transient Response VRM 8.2, VRM 8.3 and VRM 8.4-Compliant 5-Bit Digitall.

  ADP3152   ADP3152







5-Bit Programmable Synchronous Switching Regulator Controller

a FEATURES 5-Bit Digitally Programmable 1.8 V to 3.5 V Output Voltage Dual N-Channel Synchronous Driver Total Output Accuracy ؎ 1% (0؇C to 70 ؇C) High Efficiency Current-Mode Operation Short Circuit Protection Power Good Output Integrated Overvoltage Protection Crowbar 16-Lead SOIC Package VRM 8.2 Compatible APPLICATIONS Desktop PC Power Supply for: Pentium II Processor Pentium Pro Processor Pentium Processor AMD–K6 Processor VRM Modules VCC +12V 22␮F 1␮F VCC R1 SD CMP R2 CCOMP 150pF AGND SENSE+ CT DRIVE1 5-Bit Programmable Synchronous Switching Regulator Controller for Pentium® II Processor ADP3152 GENERAL DESCRIPTION The ADP3152 is a highly efficient synchronous switching regulator controller optimized for Pentium II Processor applications where 5 V is stepped down to a digitally controlled output voltage between 1.8 V and 3.5 V. Using a 5-bit DAC to read a voltage identification (VID) code directly from the processor, the ADP3152 uses a current mode constant off-time architecture to generate its precise output voltage. The ADP3152 drives two N-channel MOSFETS in a synchronous rectified buck converter, at a maximum switching frequency of 250 kHz. Using the recommended loop compensation and guidelines, the ADP3152 provides a dc/dc converter that meets Intel’s stringent transient specifications with a minimum number of output capacitors and smallest footprint. Additionally, the current mode architecture also provides guaranteed short circuit protection and adjustable curren.


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