This is the datasheet of LT3851EGN, which introduces its features and application information.
This guide provides setup instructions for evaluating the LTC3851EGN synchronous buck converter in demonstration circuit 1171A. It covers input voltage range (4.5V–14V), output voltage (1.5V ±2%), switching frequency (400kHz), and efficiency (up to 90%). Two board versions are available: A with onboard sense resistor and B using inductor DCR for sensing. The guide includes steps for measurement setup, mode selection (CCM, pulse skip, Burst Mode), and tracking options. Efficiency curves and thermal images are provided for reference.
| Input Voltage Range | 4.5V - 14V |
|---|---|
| Output Voltage | 1.5V ±2% |
| Nominal Switching Frequency | 400kHz |
| Efficiency (A-A) | 87.3% Typical |
| Efficiency (A-B) | 90.0% Typical |
The input voltage range is 4.5V to 14V.
The output voltage is 1.5V ±2%.
Change the position of jumper JP3 to select CCM, pulse skip, or Burst Mode.
The typical efficiency is 87.3% for version A and 90.0% for version B.