Flybuck Power Supply Using LM5017, Two 12V@0.25A Outputs
PMP7941
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Description

This reference design uses the LM5017 Flybuck regulator to generate two 12V output at 250mA. One output is at the primary side and the other is on the isolated secondary side. By reverse the output and ground connection of the secondary side, the isolated output becomes -12V. It's suitable for applications requiring +/-12V bias powers. The input range is from 17V to 32V.

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Parametrics
 PMP7941.1
(Output Voltage 1)
PMP7941.2
(Output Voltage 2)
Vin (Min) (V)1717
Vin (Max) (V)3232
Vout (Nom) (V)1212
Iout (Max) (A).25.25
Output Power (W)33
Isolated/Non-IsolatedIsolatedIsolated
Input TypeDCDC
TopologyFlybuckFlybuck

TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy 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)
LM5017 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 696 26 Apr 2013
Design files (2)
Title Type Size (KB) Date
PDF 95 26 Apr 2013
PDF 95 26 Apr 2013

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