10.8Vin~13.2Vin, 5Vout @ 300mA, Isolated Self-Driven Synchronous Flybuck Converter Reference Design PMP9291 (ACTIVE)

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Key Document

Description

An isolated flybuck converter with self-driven synchronous rectification on the secondary side accepts an input voltage of 10.8Vin to 13.2Vin and provides an isolated output of 5Vout capable of supplying a maximum of 0.3A of current to the load.

Features
  • Excellent regulation 4.9Vout ± 3.1% over entire line and load range without opto or discrete Vref
  • No need for pre-load on isolated output, without output voltage rise at light load
  • Improved load regulation, smaller voltage droop at heavy load
  • LM5017 wide Vin range 7.5V to 100V
  • Easy-to-design, cost effective Fly-Buck solution
  • Constant On-Time control, no loop compensation required

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Parametrics
 PMP9291.1
(Output Voltage 1)
Vin (Min) (V)10.8
Vin (Max) (V)13.2
Vout (Nom) (V)5
Iout (Max) (A).3
Output Power (W)1.5
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyFlybuck

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD17507Q5A  30V N-Channel High Side NexFET Power MOSFET with 20 Volt Vgs  MOSFETs  Not Available View Design Kits & Evaluation Modules
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD17507Q5A VSONP (DQJ)| 8 Download Download
LM5017 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1130 29 Sep 2015
Design files (5)
Title Type Size (KB) Date
ZIP 244 29 Sep 2015
ZIP 415 29 Sep 2015
PDF 691 29 Sep 2015
PDF 122 29 Sep 2015
PDF 292 29 Sep 2015

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