The LT ®1316 is a micropower step-up DC/DC converter that operates from an input voltage as low as 1.5V. A programmable input current limiting function allows pre- cise control of peak switch current. Peak switch current can be set to any value between 30mA and 500mA by adjusting one resistor. This is particularly useful for DC/DC converters operating from high source impedance inputs such as lithium coin cells or telephone lines. The fixed off-time, variable on-time regulation scheme results in quiescent current of only 33µA in active mode. Quiescent current decreases to 3µA in shutdown with the low-battery detector still active. The LT1316 is available in 8-lead MSOP and SO packages.
The LT1316 is a micropower step‑up DC/DC converter that operates from input voltages as low as 1.5 V and includes a programmable peak‑current limit and low‑battery detector that remains active in shutdown mode. It is offered in 8‑lead MSOP and 8‑lead plastic SO packages and is suitable for battery‑backup and LCD‑bias applications.
The document details absolute maximum ratings, electrical characteristics, pin descriptions, typical performance curves, and design examples for both continuous and discontinuous conduction modes. Package dimensions and ordering information are also provided.
| Minimum Input Voltage | 1.5 V |
|---|---|
| Maximum Switch Current | 750 mA |
| Package Options | 8‑lead MSOP and 8‑lead plastic SO |
| Low‑Battery Detector Output Current | 500 µA |
The LT1316 can operate from an input voltage as low as 1.5 V.
The device’s maximum switch current is rated at 750 mA.
The SHDN pin is considered high at about 1.4 V and low at about 0.4 V.
The LT1316 is offered in 8‑lead MSOP and 8‑lead plastic SO packages.