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Texas Instruments LM5017MRX/NOPB | Demoboard PMP10558
Low Profile Triple Output Isolated Fly-Buck Power Supply for Industrial Applications
Overview
| Topology | FlyBuck (Double Buck) |
| Input voltage | 18-30 V |
| Output 1 | 15 V / 0.05 A |
| Output 2 | 5 V / 0.1 A |
| Output 3 | -5 V / 0.1 A |
Description
The PMP10558 reference design is a low profile triple 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 three isolated outputs depending on the transformer selection. The LM5017 is a 100V wide Vin, 600mA synchronous buck regulator. The input voltage range of the design is 18V to 30V, making it suitable for 24V input industrial applications. The Fly-Buck can regulate the secondary side outputs without an opto-coupler or auxillary 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 reduce the external part count and BOM cost.
Features
Vin: 18V to 42V4 layer board (1 oz. copper on top and bottom, 1/2 oz. on middle two layers)Board dimensions: 3.2" x 1.6"Good thermal performance and efficiencyREMARK: BOM and Schematics are added with main pdf.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1(V) | IOut1(mA) | VOut2(V) | IOut2(mA) | VOut3(V) | IOut3(mA) | Vbuck(V) | L(µH) | NPRI : NSEC | ISAT(mA) | LS(nH) | VT(V (AC)) | fswitch(kHz) | Mount | L(mm) | W(mm) | H(mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-IBTI Isolated Buck Transformers, 16 - 36 V (DC), 15 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-IBTI Isolated Buck Transformers | Input Voltage 16 - 36 V (DC) | Output Voltage 115 V | Output Current 133 mA | Output Voltage 25 V | Output Current 2100 mA | Output Voltage 3-5 V | Output Current 3100 mA | Buck Voltage13 V | Inductance45 µH | Turns Ratio1.92:3:1:1 | Saturation Current960 mA | Leakage Inductance400 nH | Insulation Test Voltage1500 V (AC) | Switching Frequency 200 - 350 | MountSMT | Length12.95 mm | Width12.7 mm | Height5.98 mm |