KF33B
KF33B is Very low drop voltage regulators manufactured by STMicroelectronics.
Features
- Very low dropout voltage (0.4 V)
- Very low quiescent current (typ. 50 µA in OFF mode, 500 µA in ON mode)
- Output current up to 500 m A
- Logic-controlled electronic shutdown
- Output voltages of 1.5; 2.5; 3.3; 4; 5; 8 V
- Internal current and thermal limit
- Only 2.2 µF for stability
- Available in ± 2 % accuracy at 25 °C
- Supply voltage rejection: 70 db (typ.)
- Temperature range: -40 to 125 °C
Description
The KFxx series are very low drop regulators available in SO-8 package and in a wide range of output voltages.
The very low drop voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and specially in battery powered systems.
A shutdown logic control function is available (pin 5, TTL patible). This means that when the device is used as a local regulator, it is possible to put a part of the board in...
