Low Profile Quad Output Isolated Fly-Buck Power Supply for Industrial Applications

(ACTIVE) PMP10543

Description & Features

Technical Documents

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Description

The PMP10543 reference design is a low profile quad output isolated Fly-Buck power supply for industrial applications.  The power supply has a synchronous buck regulator, LM5017, and a low profile (6mm) transformer. It generates four isolated outputs of ±5V, ±12V, 75mA each.  The LM5017 is a 100V wide Vin, 600mA synchronous buck regulator.  The input voltage range of the design is 20V to 32V, making it suitable for 24V input industrial application.  The Fly-Buck can regulate the secondary side outputs without opto-coupler or aux winding and is capable of achieving good cross regulation within ±5%.  With LM5017's constant on-time control, no loop compensation is required, which simplifies the design and helps reducing the external part count and BOM cost.

Features
  • Multiple isolated bias power using Fly-Buck, ideal for PLC and industrial applications
  • 2.5W output power, +/-12V, +/-5V @ 75mA each, with LM5017 capable of 7.5V to 100V input
  • Primary side regulation without opto, good cross regulation within +/-5%
  • 6mm low profile transformer
  • Constant on-time control, no loop compensation required, and fast transient response
  • This circuit board is tested, and the design files and test report are included.

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


  




Parametrics
 PMP10543.1
(Output Voltage 1)
PMP10543.2
(Output Voltage 2)
PMP10543.3
(Output Voltage 3)
PMP10543.4
(Output Voltage 4)
Vin (Min) (V)20202020
Vin (Max) (V)32323232
Vout (Nom) (V)-512-125
Iout (Max) (A).075.075.075.075
Output Power (W).375.9.9.375
Isolated/Non-IsolatedIsolatedIsolatedIsolatedIsolated
Input TypeDCDCDCDC
TopologyFlybuckFlybuckFlybuckFlybuck

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  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 1110 24 Oct 2014 20
Design files (5)
Title Abstract Type Size (KB) Date Views
ZIP 72 24 Oct 2014 15
ZIP 329 24 Oct 2014 5
PDF 191 24 Oct 2014 3
PDF 212 24 Oct 2014 9
PDF 112 24 Oct 2014 36


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