5V input; 6 Phase High Efficiency Synchronous Buck; 0.9V 120A output

(ACTIVE) PMP6845

Description & Features

Technical Documents

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Description

The PMP6845 reference design uses three TPS40140's to control 6 Synchronous Buck Phases. Main switch pair for each phase is the dual CSD86350Q5D. The optional added CSD16325Q5 for the low side enhances efficiency, especially at full load. Efficiency is 87.5% at full load and over 90% for loads from 20 thru 80A. Electrical and Thermal test results shown for both with and without the added CSD16325Q5. An on board dynamic load allows rapid load transients to be tested.

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Bill of Materials (BOM)

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Parametrics
 PMP6845.1
(Output Voltage 1)
Vin (Min) (V)4.5
Vin (Max) (V)5.5
Vout (Nom) (V).9
Iout (Max) (A)120
Output Power (W)108
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous
Buck- Multiphase

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD16325Q5  N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy Not Available
CSD86350Q5D  Synchronous Buck NexFET™ Power Block MOSFET Pair  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TPS40140  Stackable 2 Channel Multiphase or 2 Channel Independent Output Controller  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD16325Q5 Download Download
CSD86350Q5D LSON-CLIP (DQY)| 8 Download Download
TPS40140 Download -

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 327 14 Sep 2011 4
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 570 14 Sep 2011 6
PDF 75 14 Sep 2011 5
PDF 229 14 Sep 2011 4

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