The LT8610 and LT8611 are 42V, 2.5A synchronous step-down regulators that meet the stringent high input voltage and low output voltage requirements of automotive, industrial and communications applications. By replacing an external Schottky diode with an internal synchronous power switch, the solution size is minimized and efficiency is increased while reducing power dissipation. These regulators are designed to be compact and allow inductor size to be selected based on the output load requirements of the application, providing short-circuit robustness.
This document describes the LT8610 and LT8611, which are 42V, 2.5A synchronous step-down regulators designed for automotive, industrial, and communications applications. These devices integrate top and bottom power switches to minimize external components and solution size while maintaining high efficiency.
| Input Voltage | 42V Max |
|---|---|
| Output Current | 2.5A |
| Quiescent Current | 2.5pA |
| Switching Frequency | 2MHz |
| Maximum Duty Cycle | 99.8% |
The regulator consumes only 2.5pA quiescent current from the input source even while regulating the output.
Yes, they safely tolerate operation with saturated inductors during overload or short-circuit conditions.
The regulators are designed to meet high input voltage requirements up to 42V.