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PMP6997 Reference Design

Texas Instruments

Synchronous Step-Down Regulator with PMBus Delivering 0.9V-3.3V at 20A Reference Design

Description

PMP6997 is a single-phase synchronous switching regulator with PMBus accepting an input voltage range of 4.5Vin to 14Vin and providing an output voltage of 1.2Vout capable of supplying 20A of current. This design uses the TPS40400 synchronous buck controller with PMBus and two CSD86350Q5D power block MOSFETs. Electrical and thermal tests results are provided for 12Vin: 1.2Vout: and 20A output. An on board dynamic load allows rapid load transients to be tested. Additionally: an on board TLC555 timer can be used to demonstrate external synchronization.

Features
  • PMBus with TelemetryProgrammable Soft-StartProgrammable Overcurrent ProtectionAdaptive Anti-Cross Conduction SchemeProgrammable UVLO
Applications
  • Merchant network & server PSU
Product Categories
  • Power management

Parts

Part Number Name Companion Part
TPS40400 TPS40400 Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP6997 Download

Other Documents

Title Updated Type Size (KB)
PMP6997 Gerber 23 Dec 2011 ZIP 433
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PMP6997 PCB 23 Dec 2011 PDF 602
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PMP6997 BOM 23 Dec 2011 PDF 31
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PMP6997 Schematic 23 Dec 2011 PDF 119
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Additional details