The PMP10532 reference design is an isolated Fly-Buck power supply for industrial applications. It takes 24V nominal input and provides three isolated outputs: +5V@1A and +/-15V@200mA. The design is suitable for providing isolated power supply to MCU and control circuits and positive/negative bias to Op Amps in PLC applications. The cross regulation of each output over line and load variation maintains about +/-5% tolerance, and the input voltage range of the supply is from 19V to 30V. The design features the LM5160 synchronous buck converter configured as a Fly-Buck regulator. The LM5160 has a wide Vin range of 4.5V to 65V and 1.5A output current capability with integrated switch FETs. It employs the Constant On-Time (COT) control scheme suitable for the Fly-Buck. With the benefit of primary side regulation, the Fly-Buck converter makes a compact and cost effective solution for multiple isolated output power supply without the opto-coupler feedback.
| Output voltage options | PMP10532.1 | PMP10532.2 | PMP10532.3 |
|---|---|---|---|
| Vin (Min) (V) | 19 | 19 | 19 |
| Vin (Max) (V) | 30 | 30 | 30 |
| Vout (Nom) (V) | 15 | -15 | 5 |
| Iout (Max) (A) | .2 | .2 | 1 |
| Output Power (W) | 3 | 3 | 5 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated |
| Input Type | DC | DC | DC |
| Topology | FlyBuck | FlyBuck | FlyBuck |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Product overview | Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications | PDF | HTML | Nov. 09, 2022 | |
| Test report | PMP10532 Test Results | Oct. 27, 2014 |
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