The LTC3807 is a low‑I Q synchronous step‑down controller with a wide input range and programmable output up to 24 V.
The LTC3807 controller provides high‑efficiency step‑down conversion for battery‑powered and automotive systems. It operates from 4 V to 38 V (40 V absolute max) and can deliver an output voltage from 0.8 V to 24 V. The device features a 50 µA no‑load quiescent current, selectable burst, pulse‑skipping, or continuous modes, and a phase‑lockable frequency up to 750 kHz.
The datasheet includes pin configurations for QFN and TSSOP packages, detailed electrical characteristics, typical performance graphs, and package dimensions. It also lists absolute maximum ratings, recommended operating conditions, and application notes for current sensing and soft‑start tracking.
| Input Supply Voltage Range | 4 V to 38 V (40 V absolute max) |
|---|---|
| Regulated Output Voltage Range | 0.8 V to 24 V |
| Quiescent Current (No‑load) | 50 µA |
| Maximum Duty Cycle | 99 % |
The controller accepts an input voltage from 4 V up to 38 V, with an absolute maximum rating of 40 V.
Yes, the output voltage can be programmed between 0.8 V and 24 V.