LD39300 is a fast ultra low drop linear regulator from ST company. It works from 2.5V to 6V input supply and offers a wide range of output options. The device has 3A maximum output current, 200mV typical dropout voltage, 1.2mA typical static current, logic controlled electronic shutdown function, current and thermal limit, ±1.5% output voltage tolerance, -40 to 125°C temperature range. LD39300 is suitable for microprocessor power supply, DSPs power supply, post regulators for switching suppliers and high efficiency linear regulator etc.
The LD39300 is a fast ultra low drop linear regulator developed on a BiCMOS process, allowing low quiescent current operation independent of output load current. It operates from a 2.5V to 6V input supply and offers fixed output voltages of 1.22V, 1.8V, 2.5V, and 3.3V, as well as an adjustable version ranging from 1.22V to 5.0V. The device is available in PPAK and DPAK packages.
| Output current | 3A |
|---|---|
| Dropout voltage (typ) | 200mV @ 3A load |
| Quiescent current (typ) | 1.2mA @ 3A load |
| Operating input voltage | 2.5V to 6V |
| Temperature range | -40 to 125°C |
| Output voltage tolerance | ±5% |
The device offers fixed outputs of 1.22V, 1.8V, 2.5V, and 3.3V, plus an adjustable version from 1.22V to 5.0V.
The device is available in PPAK and DPAK packages.