The LTC1877 is a high efficiency, low quiescent current, synchronized, burst mode synchronous buck regulator.
The LTC1877 is a monolithic synchronous step‑down regulator offering up to 95 % efficiency, low quiescent current and selectable burst or pulse‑skipping modes. It operates from an input voltage of 2.65 V to 10 V and delivers up to 600 mA output current in a compact 8‑lead MSOP package.
The document provides absolute maximum ratings, electrical characteristics, pin functions, typical performance curves, and application guidelines for selecting inductors and capacitors. It also describes burst‑mode operation, frequency synchronization, and protection features such as short‑circuit and over‑temperature shutdown.
| Input Voltage Range | 2.65 V – 10 V |
|---|---|
| Shutdown Quiescent Current | < 1 pA |
| Reference Voltage | 0.8 V |
The device operates from 2.65 V up to 10 V input.
Tie the SYNC/MODE pin to Vjy or apply a logic high greater than 1.5 V.
In shutdown the device draws less than 1 pA of supply current.