Low-Power Isolated Supply, Input range: 36V to 75V, Output: 10V @ 120mA, LM5017

(ACTIVE) PMP7798

Description & Features

Technical Documents

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Description

Based on the Wide VIN COT Sync Buck regulator LM5017, this FlyBuck circuit provides excellent regulation for two isolated outputs and one non-isolated output. Compared with a conventional Flyback circuit, this design features a smaller board size and minimized BOM without the need for an optocoupler. This design is well suited for applications which need bias power. Additional output voltage versions of this board are available: see PMP7798.2 and PMP7798.3

Features
  • 36V to 75V Input
  • Primary side output: 10V output at 40mA
  • Secondary side output 1: 5V output at 80mA
  • Secondary side output 2: 10V output at 120mA
  • This fully-functional evaluation board is supported with design files, a demo, and an application note


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


  




Parametrics
 PMP7798.1
(Output Voltage 1)
PMP7798.2
(Output Voltage 2)
PMP7798.3
(Output Voltage 3)
Vin (Min) (V)363636
Vin (Max) (V)757575
Vout (Nom) (V)10510
Iout (Max) (A).04.08.12
Output Power (W).4.41.2
Isolated/Non-IsolatedIsolatedIsolatedIsolated
Input TypeDCDCDC
TopologyBuck- SynchronousFlyBuckFlyBuck

TI Devices (9)

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
LM25017  7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM25018  7.5-48V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM25019  7.5-48V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM34925  7.5-100V Wide Vin, 100mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules
LM34926  7.5-100V Wide Vin, 300mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules
LM34927  7.5-100V Wide Vin, 600mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM5018  7.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
LM5019  7.5-100V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

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 205 06 Feb 2012 34
White papers (1)
Title Abstract Type Size (KB) Date Views
PDF 980 29 Sep 2015 475
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 53 06 Feb 2012 23
PDF 34 06 Feb 2012 31
PDF 45 06 Feb 2012 90


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