This document introduces the LSN-10A D12 series of DC/DC converters, which are non-isolated, 12V input, 1-5V output 10 Amp DC/DC modules. The modules feature high efficiency, small size, low noise, stable operation, etc., and are suitable for use in on-board power distribution schemes.
The LSN‑10A D12 series provides a single‑output, non‑isolated step‑down converter that accepts a 12 V input (10.8‑13.2 V range) and delivers selectable output voltages from 1 V to 5 V at a full‑load current of 10 A. The devices are offered in a compact 0.7 sq in (4.5 cm²) vertical‑mount SIP package, with an optional low‑profile horizontal‑mount version.
Key functional features include a fully synchronous fixed‑frequency buck topology, remote on/off control, output‑voltage trimming (±10 %), over‑current detection with hiccup shutdown, and thermal shutdown at +115 °C. The converters achieve up to 96 % efficiency (5 V model) and exhibit low output noise of 30‑50 mVp‑p. This manual is written in Chinese.
| Input voltage range | 10.8‑13.2 V |
|---|---|
| Rated output current | 10 A |
| Efficiency (5 V model) | up to 96 % |
| Output ripple/noise | 30‑50 mVp‑p |
| Line/load regulation | ±0.1 % line, ±0.25 % load |
| Package size (vertical mount) | 0.7 sq in (4.5 cm²) |
| Thermal shutdown temperature | +115 °C |
| MTBF (typical) | 2.3‑1.8 million hours |
The converter operates with an input voltage from 10.8 V to 13.2 V (12 V nominal).
The 5 V output version can reach up to 96 % efficiency at full load.