The LTC1174 is a high efficiency step-down and inverting DC/DC converter from LTC company. It has a maximum output current of 340mA or 600mA and can operate in a wide VIN range of 4V to 18.5V with up to 94% efficiency.
The LTC1174‑3.3 and LTC1174‑5 are high‑efficiency step‑down (buck) and inverting DC/DC converters that operate from 4 V to 12 V (or 4 V to 16 V for the HV version). They feature up to 94 % efficiency, selectable current limit, and a micropower shutdown mode that reduces quiescent current to 1 µA.
The document provides electrical characteristics, pin functions, typical performance graphs, recommended inductor core selection, package dimensions, and example battery‑charger applications. Only four external components are required to build a complete converter circuit.
| Maximum Efficiency | Up to 94 % |
|---|---|
| Shutdown (micropower) current | 1 µA |
The LTC1174 family can achieve up to 94 % efficiency.
In shutdown the device draws about 1 µA.