Low-profile dual-output surface-mount inductor supports 8 V to 24 V input operation with combined 3.3 V and 5 V loads totaling up to 17 W. The primary inductance is 17.4 µH with ±15% tolerance at 1.0 kHz, and winding DC resistance is rated at 20 mΩ maximum. Electrical insulation is rated for 300 Vdc dielectric breakdown and 100 MΩ minimum insulation resistance. The part operates from -40 °C to +130 °C with a Class B 130 °C insulation system and UL 94V-0 base material.
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| Component Type | Low profile dual-output surface mount inductor |
| Primary Inductance | 17.4 ±15%µH |
| Inductance Test Frequency | 1.0kHz |
| Winding DC Resistance Maximum | 20mΩ |
| Input Voltage Range | 8 to 24V |
| Output Power Maximum | 17W |
| Output Load Voltages | 3.3 and 5V |
| Dielectric Breakdown Voltage | 300Vdc |
| Insulation Resistance Minimum | 100MΩ |
| Operating Temperature Range | -40 to +130°C |
| Ambient Temperature Maximum | 80°C |
| Insulation System | Class B, 130°C |
| Base Material Flammability | UL 94V-0 |
| Flammability | UL 94V-0 base material |
These are design resources that include the Beckman Industrial Corporation HM00-93839
Design Note 77 describes a 17W dual-output power supply using a single LTC1149 to regulate 3.3V and 5V rails with efficiencies exceeding 90% across a 6V to 24V input range.
