The AFL Series of DC/DC converters feature high power density with no derating over the full military temperature range
The AFL50XXS series offers single‑ and dual‑output DC/DC converters that operate from nominal +28, +50, +120 or +270 V inputs. Output voltages are available at 3.3, 5, 8.9, 12, 15, 24 and 28 V, with power ratings from 80 W up to 120 W. Converters are hermetically packaged, feature copper‑core pins, and meet MIL‑PRF‑38534 screening grades.
The converters use Advanced Analog’s magnetic pulse‑feedback topology, a fixed 550 kHz switching clock, and provide features such as undervoltage lockout, primary/secondary inhibit, soft‑start, load‑fault protection, remote sensing, and synchronization ports for parallel operation and current‑sharing.
| Input Voltage Range | -0.5 V to 100 V |
|---|---|
| Output Voltage Options | 3.3, 5, 8.9, 12, 15, 24, 28 V |
| Maximum Output Power | 120 W |
| Efficiency | up to 85 % |
| Switching Frequency | 500 kHz – 600 kHz |
| Operating Temperature Range | -55 °C to +125 °C |
| Line Rejection | >40 dB (30 Hz‑50 kHz) |
| Synchronization Input Frequency Range | 500 kHz – 700 kHz |
The converters can deliver up to 120 W of output power, depending on the specific model.
Use the synchronization input port with a frequency between 500 kHz and 700 kHz, or connect to the sync output of a master converter.