High Density 900mV 220 A 6 Phase DC-DC Buck Converter with PMBus Interface Reference Design
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Key Document


PMP11208 has same hardware as 1.0V PMP9738 and 0.6V PMP10393 but demonstrates operation at 900mV output up to 240 A off 11V, 12V and 13V inputs. While the design is in quasi fixed frequency mode for 1.0Vout and in fixed on time mode for 600mVout, it can be in either mode at 900mVout depending upon load and actual Vin. Testing focused upon detailed static and dynamic loading in and between both modes to show a seamless transition between the two modes.

  • Same hardware as 1.0Vout PMP9738, but with 900mV output testing up to 240A
  • DCAP+ control for excellent step load response, SVID and PMBus interfaces
  • Thermal performance & dynamic response verified at 900mV output off 11V, 12V & 13V
  • Focus of evaluation board is on ease of electrical testing with almost all parts on top side   
    • Rich test interface including PMBus socket, 5V & 3.3V biases and onboard high speed dynamic test load

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(Output Voltage 1)
Vin (Min) (V)10.8
Vin (Max) (V)13.2
Vout (Nom) (V).9
Iout (Max) (A)220
Output Power (W)198
Input TypeDC
TopologyBoost- Synchronous
Buck- Multiphase

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD95372BQ5M  60A Synchronous Buck NexFET™ Smart Power Stage  MOSFETs  Sample & Buy Not Available
TPS53661  6-Phase, D-CAP+™ Step-Down VR12.x Server CPU VCORE  Step-down (buck) regulators  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD95372BQ5M LSON-CLIP (DQP)| 12 Download Download
TPS53661 Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 3515 07 Jul 2015
Design files (5)
Title Type Size (KB) Date
ZIP 931 07 Jul 2015
PDF 5688 07 Jul 2015
PDF 398 07 Jul 2015
PDF 165 07 Jul 2015
PDF 991 07 Jul 2015

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