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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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206069 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 47 nF | ±10% | 25 | 0603 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | 0.8 | – | ||
| 885012206120 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 100 V(DC) | 100 nF | ±10% | 100 | 0603 | -55 °C up to +125 °C | 5 | 1 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | 0.8 | – | ||
| 885012206076 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 1 µF | ±10% | 25 | 0603 | -55 °C up to +125 °C | 10 | 0.5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | 0.8 | – | ||
| 885012208094 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 4.7 µF | ±10% | 50 | 1206 | -55 °C up to +125 °C | 10 | 0.02 GΩ | X7R Class II | 3.2 | 1.6 | 0.5 | 7" Tape & Reel | – | – | – | – | – | 1.6 | – | ||
| 885012107011 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | 22 µF | ±20% | 10 | 0805 | -55 °C up to +85 °C | 10 | 0.005 GΩ | X5R Class II | 2 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | 1.25 | – | ||
 | 74279220601 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | 0805 | -55 °C up to +125 °C | – | – | – | 2 | 1.2 | 0.5 | – | 600 | 551 | 108 MHz | 2100 | 103 | 0.9 | High Current |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012206069 | SPEC | |
| 885012206120 | SPEC | |
| 885012206076 | SPEC | |
| 885012208094 | SPEC | |
| 885012107011 | SPEC | |
| 74279220601 | SPEC |
| Samples |
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| 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 |
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