LT1614 is a switching regulator chip launched by Linear Technology. It uses a fixed frequency of inverted mode and works with an input voltage of 1V-5V. The output voltage range is -24V-5V and the output current is 200mA.
The LT1614 is a fixed‑frequency, inverting‑mode switching regulator that operates from an input voltage as low as 1 V and can generate a negative output down to –24 V. It features low quiescent current, a low‑battery detector, and a low‑voltage switch drop, making it suitable for compact, low‑noise designs.
The document includes detailed electrical characteristics, absolute maximum ratings, pin descriptions, typical application circuits, layout recommendations, and package information for the 8‑lead MSOP and SO variants.
| Quiescent Current | 1‑2 mA |
|---|---|
| Switching Frequency | 500‑750 kHz |
| Minimum Input Voltage | 0.92‑1 V |
| Maximum Input Voltage | 6 V |
| Low‑Battery Detector Threshold | 200 mV |
| Switch Voltage Drop | 295‑350 mV at 500 mA |
| Maximum Duty Cycle | 80 % |
The LT1614 can accept up to 6 V on its input.
The device draws between 1 mA and 2 mA of quiescent current.
It operates at a fixed frequency between 500 kHz and 750 kHz.