Topology | FlyBuck (Double Buck) |
Input voltage | 17-32 V |
Output 1 | 15 V / 0.05 A |
Output 2 | -5 V / 0.1 A |
Output 3 | -15 V / 0.05 A |
Output 4 | 5 V / 0.1 A |
The LM5017 Flybuck reference design provides multiple isolated outputs to supply the bias voltage needed in a PLC I/O module. It generates 4 isolated outputs: ±15V@50mA and ±5V@100mA; it can cover most of the required voltage rails in the I/O module, such as the OP-AMP, DAC bias, RS-485 transmitter and digital isolator power supplies. In the Flybuck, the regulation is done on the primary side, and thus no opto-coupler is needed. The overall load/line regulation for each output is within +/-5%. The input voltage range is from 17V to 32V.
Remark: BOM pdf is added with EVM and Schematic Diagram pdf
FeaturesIdeal for PLC I/O modules, or industrial applications requiring multiple bias suppliesQuad isolated outputs, +/-15V@50mA, +/-5V@100mADesigned for an operating range of 17-32V Uses the LM5017 capable of 9 to 100V Input operation for withstanding transients and surge voltage
+/-5% Vout regulation accuracy across line and load variationsTested and supported with design files, reference board available upon request
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN (V) | VOut1 (V) | IOut1 (mA) | VOut2 (V) | IOut2 (mA) | VOut3 (V) | IOut3 (mA) | VOut4 (V) | IOut4 (mA) | Vbuck (V) | L (µH) | NPRI : NSEC | ISAT (A) | LS (nH) | VT (V (AC)) | fswitch (kHz) | Mount | L (mm) | W (mm) | H (mm) | Samples | |
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750313995 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-IBTI Isolated Buck Transformers | 15 - 40 | 15 | 50 | 5 | 100 | 5 | 100 | 15 | 50 | 7.8 | 50 | 1.5:1:1:2:2 | 1.5 | 260 | 1500 | 300 - 600 | SMT | 13.46 | 17.75 | 12.7 |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN (V) | VOut1 (V) | IOut1 (mA) | VOut2 (V) | IOut2 (mA) | VOut3 (V) | IOut3 (mA) | VOut4 (V) | IOut4 (mA) | Vbuck (V) | L (µH) | NPRI : NSEC | ISAT (A) | LS (nH) | VT (V (AC)) | fswitch (kHz) | Mount | L (mm) | W (mm) | H (mm) | Samples |
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