The L5959 is a multifunction voltage regulator from ST company. It can be used in car radios. The chip has four outputs: 8.5V@200mA, 8/10V@1000mA (selectable 10V or 8V), 3.3V@100mA (permanent) and 3.3V@800mA (switched power supply). In addition, L5959 has two protected HSD, reset function, battery voltage (under/over) warning output, load dump protection, independent thermal shutdown, overcurrent limitation, storage capacitor output (STCAP), small capacitor required by stability of regulators and all pins ESD protection.
The L5959 is a multifunction voltage regulator specifically designed for car radio applications. It integrates four voltage regulators and two protected high-side drivers (HSDs) to manage power distribution and protection within the system. The device includes features such as load dump protection, independent thermal shutdown for all regulators and HSDs, and a reset function to ensure system stability.
| Operating temperature range | -40 to 105 °C |
|---|---|
| Storage temperature range | -55 to 150 °C |
| Junction temperature range | -55 to 150 °C |
| Power dissipation | 43 W |
| Input supply voltage (operating) | 9 to 18 V |
| VSTBY output voltage | 3.3 V |
| VREGSW output voltage | 3.3 V |
The operating temperature range is from -40 to 105 °C.
The maximum power dissipation is 43 W when the junction temperature is 85°C.
Yes, the IC includes load dump protection.