High Input Voltage Synchronous Buck Provides Two Independent Outputs of 28V at 2A and 16V at 4A

(ACTIVE) PMP9227

Description & Features

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Description

The LM5119 controller allows the user to have two separate regulated outputs or the capability to combine the outputs (of the same voltage) into a two-phase regulator. This design operates from a 36V - 51V input and regulates 28V@2A (with transients up to 7A) and 16V@4A (with transients up to 6A).

Features
  • Allows for dual or single regulated outputs
  • 36V - 51V input
  • Greater than 96% efficiency
  • Sequenced output voltage
  • Board length is approximately 69 mm
  • Test report is available

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP9227.1
(Output Voltage 1)
PMP9227.2
(Output Voltage 2)
Vin (Min) (V)3636
Vin (Max) (V)5151
Vout (Nom) (V)1628
Iout (Max) (A)67
Output Power (W)96196
Isolated/Non-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDC
TopologyBuck- SynchronousBuck- Synchronous

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19533Q5A  100V, 7.8mOhm, SON5x6 N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy Not Available
CSD19534Q5A  100V, N-Channel NexFET Power MOSFET  MOSFETs  Sample & Buy Not Available
LM5119  5.5-65V Wide Vin, Current Mode Dual Synchronous Buck Controller  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD19533Q5A VSONP (DQJ)| 8 Download
CSD19534Q5A VSONP (DQJ)| 8 Download
LM5119 Download 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 1705 08 Apr 2015 10
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 227 08 Apr 2015 6
PDF 40 08 Apr 2015 3
PDF 150 08 Apr 2015 5

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