L4920 L4921, are adjustable voltage regulators with very low voltage drop, adjustable output voltage, low quiescent current, reverse voltage protection, + 60/ − 60V transient peak voltage protection, short circuit protection and thermal shut-down. These regulators are designed for automotive, industrial and consumer applications where low consumption is particularly important. In battery backup and standby applications, these devices extend battery life.
The L4920 and L4921 are adjustable voltage regulators designed for automotive, industrial, and consumer applications where low consumption is important. They feature a very low voltage drop of 0.4V typical at 0.4A and a low quiescent current. The output voltage is adjustable from 1.25V to 20V via an external divider, with a minimum operating input voltage of 5.2V.
| Output Voltage Range | 1.25V to 20V |
|---|---|
| Output Current | 400mA |
| Minimum Operating Input Voltage | 5.2V |
| Dropout Voltage (Typical) | 0.4V |
| Maximal Output Current | 800 mA |
| Short Circuit Output Current | 500 mA |
| Junction Temperature Range | -55 to 150 °C |
The typical voltage drop is 0.4V at 0.4A output current.
The minimum operating input voltage is 5.2V at 25°C.
Yes, it includes a foldback current limiter that protects against load short circuits.