KF00 series very low dropout voltage regulators with inhibit function, available in SO-8 and DPAK packages and in a wide range of output voltages. The very low dropout 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. It requires only a 2.2 µF capacitor for stability allowing space and cost saving.
The KF00 series consists of very low dropout (LDO) voltage regulators designed for low noise, low power applications, particularly suitable for battery-powered systems. Key features include a very low dropout voltage of 0.4V, extremely low quiescent current (typical 50 µA in off mode), and an output current capability up to 500 mA.
These regulators are available with fixed output voltages ranging from 1.25 V to 12 V in both SO-8 and DPAK packages. A significant feature is the logic-controlled electronic shutdown function, which allows parts of a board to be put into standby mode to decrease total power consumption. Stability is achieved with only a 2.2 µF output bypass capacitor.
| Dropout Voltage (Typ) | 0.4 V |
|---|---|
| Quiescent Current (Off Mode Typ) | 50 µA |
| Output Current | Up to 500 mA |
| Operating Temperature Range | -40 to 125 °C |
| Supply Voltage Rejection | 70 dB (Typ) |
| Output Bypass Capacitance for Stability | 2.2 µF |
The typical quiescent current in off mode is 50 µA.
The series offers output voltages of 1.25, 1.5, 2.5, 2.7, 3, 3.3, 3.5, 4, 4.5, 4.7, 5, 5.2, 5.5, 6, 8, 8.5, and 12V.
The devices are available in SO-8 and DPAK packages.
Yes, a Shutdown Logic Control function is available on pin 5 which is TTL compatible.