This data sheet introduces the features of L4953G, including 3 outputs: 9.2V (500mA), 5V (1A), 5V (100mA); 2A high side driver with clamped output (16V); logic output for: supply undervoltage (LVW), overvoltage, thermal protection; reset function; ignition comparator; reverse battery and load dump protection; thermal shutdown.
The L4953G is a multifunction voltage regulator designed for car radio applications. It integrates a triple voltage regulator and a power switch, along with monitoring circuits for low voltage, overvoltage, and thermal protection. The device includes a standby output to allow a microprocessor to store data during fault conditions.
| Operating Supply Voltage | 11 to 18 V |
|---|---|
| Top Operating Temperature Range | -40 to 85 °C |
| 5V Stand-by Output Voltage | 4.75 to 5.25 V |
| 5V/1000mA Switched Output Voltage | 4.75 to 5.25 V |
| 9.2V/500mA Switched Output Voltage | 9.2 ±5% V |
| High Side Driver Output Voltage | 14.6 to 16.2 V |
| Output Continuous Current (16V) | 2 A |
| Fault Threshold | 7 to 8.5 V |
| Reset ON Threshold | 0.938 to 0.97 V |
It is a multifunction voltage regulator designed for car radio applications.
It allows the use of a reserve supply capacitor to hold enough energy for the 5V Stand-by line to allow the µP to store data.
No, this is preliminary information on a new product now in development, and details are subject to change without notice.