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Overview
| Topology | Flyback Converter |
| Input voltage | 18-32 V |
| Switching frequency | 12-350 kHz |
| Output 1 | 24 V |
| IC revision | B |
Description
This 26.54 mm × 11.68 mm × 5.6-mm height board is optimized to leverage the performance of the LM5181 PSR Flyback converter. The board operates over an input voltage range of 18 V to 32 V to deliver a 24-V and 3.3-V outputs at currents up to 40 mA and 15 mA, respectively. Operating without an auxiliary winding or optocoupler, the LM5181 provides very tight output voltage regulation. The LM5181 offers several protection features, like undervoltage lockout to provide proper operation during voltagesag conditions, programmable soft-start to reduce inrush current, hiccup-mode overcurrent protection, and thermal shutdown.
Features
- 18-V to 32-V input voltage range
- 24-V and 3.3-V output voltages
- Up to 1-W total output power
- High-voltage isolation
- Fully assembled and tested PCB layout with small footprint and low profile
Typical applications
- Sub-AM band automotive body electronics, Automotive HEV/EV powertrain systems
- Isolated bias supplies
- Traction inverters: IGBT and SiC gate drivers
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | Fl(mm) | Packaging | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR(mA) | Z @ 1 GHz(Ω) | H(mm) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), 47 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance47 nF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 100 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | Capacitance100 nF | Capacitance±10% | Rated Voltage100 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor5 % | Insulation Resistance1 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 1 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance1 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), 4.7 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance4.7 µF | Capacitance±10% | Rated Voltage50 V (DC) | Size1206 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.02 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width1.6 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | Height1.6 mm | – | |||||
| WCAP-CSGP MLCCs 10 V(DC), 22 µF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | Capacitance22 µF | Capacitance±20% | Rated Voltage10 V (DC) | Size0805 | Operating Temperature -55 °C up to +85 °C | Dissipation Factor10 % | Insulation Resistance0.005 GΩ | Ceramic TypeX5R Class II | Length2 mm | Width1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | Height1.25 mm | – | |||||
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | Size0805 | Operating Temperature -55 °C up to +125 °C | – | – | – | Length2 mm | Width1.2 mm | Pad Dimension0.5 mm | – | Impedance @ 100 MHz600 Ω | Maximum Impedance551 Ω | Maximum Impedance108 MHz | Rated Current2100 mA | Impedance @ 1 GHz103 Ω | Height0.9 mm | TypeHigh Current |