The L4923 is a Heptawat high-current monolithic voltage regulator with very low voltage drop (0.70 V max at 1 A, TJ = 25 °C). The device is internally protected against load dumps transient of + 60 V, input overvoltage, reverse polarity, overheating and output short circuit: thanks to these features the L4923 is very suited for automotive and industrial applications. The reset function is very useful for power off and power on information when supplying a microprocessor. The inhibit function reduces drastically the consumption when no load current is required: typically the standby current value is 300 µA.
The L4923 is a high-current monolithic voltage regulator designed for automotive and industrial applications. It features a very low voltage drop of 0.70V maximum at 1A and includes built-in protection against load dumps, reverse battery, short circuits, and thermal shutdown. The device also provides a precise output voltage with a reset function for power-on/off information and an inhibit function for remote on-off commands.
| Output Voltage | 5V +/- 4% |
|---|---|
| Dropout Voltage (Typical) | 0.70 V |
| Quiescent Current (Max) | 70 mA |
| Short Circuit Current | 1.8 A |
| Operating Input Voltage | 6 to 26 V |
| Operating Temperature Range | -40 to +125 °C |
The device is rated for a maximum load current of 1A.
Yes, the device includes thermal shutdown protection.
The recommended value for the output capacitor is 47uF.