The SMT05E series are non-isolated dc-dc converters packaged in a surface mount footprint giving designers a cost effective solution for conversion from a 3.3 Vdc to 5 Vdc source. The SMT05E has a wide input range (3.0 Vdc to 5.5 Vdc) and offers a wide 0.75 Vdc to 3.63 Vdc output voltage range with a 5 A load, which allows for maximum design flexibility and a pathway for future upgrades. The SMT05E is designed for applications that include distributed power, workstations, optical network and wireless applications. Implemented using state of the art surface-mount technology and automated manufacturing techniques, the SMT05E offers compact size and efficiencies of up to 94%.
The SMT05E series provides a compact, high‑efficiency solution for converting a 3.3 V to 5 V source. It supports a wide input range of 3.0 V to 5.5 V and an adjustable output from 0.75 V to 3.63 V at up to 5 A load, making it suitable for distributed power, workstations, optical networks and wireless applications.
The device features a fixed 300 kHz switching frequency, MTBF greater than 9 million hours, and a RoHS‑compliant, surface‑mount package measuring 20.32 × 11.43 × 6.70 mm. Optional remote ON/OFF control is available with negative‑logic operation.
| Input voltage range | 3.0‑5.5 Vdc |
|---|---|
| Output voltage range | 0.75‑3.63 Vdc |
| Maximum load current | 5 A |
| Efficiency | up to 94 % (5 V in, 3.3 V out) |
| Switching frequency | 300 kHz (typ.) |
| MTBF | >9 million hours |
| Dimensions (L×W×H) | 20.32 × 11.43 × 6.70 mm |
| Weight | 2.8 g |
| Operating temperature range | -40 °C to +85 °C |
The SMT05E accepts an input voltage from 3.0 Vdc to 5.5 Vdc.
The converter can achieve up to 94 % efficiency at 5 V input and 3.3 V output.
The SMT05E uses negative‑logic remote ON/OFF; pulling the pin low turns the unit on, pulling it high turns it off. If the pin is left open, the converter stays on.