PDF L5955 Download

Description

The L5955 is an integration of three high side drivers, six regulators and two stand-by regulators
with RESET function developed to provide the power to a complete audio system. The outputs of the IC are controlled by I2C bus and Enable pin. The device is equipped with sequencing and slew rate controls for the st-by regulators.

Features

1. 2 stand-by regulators:
3.3V (125mA)
1.5V (300mA)

2. 6 regulators:
10V (40mA)
8.5V (200mA)
3.3V (850mA)
8/10V (1A)
5/3.3/1.8V (200mA)
1.8/2.5V(200mA)

3. All regulators are low dropout outputs
4. The different outputs voltage are controlled by I2C Bus.
5. Reg3 on/off controlled by enable
6. Reg1, Reg2, Reg4, Reg5, Reg6 on/off controlled by I2C Bus.
7. 3 high side drivers : 2A (HSD1) , 0.45A (HSD2 & HSD3)
8. No external charge pump capacitors are required
9. Stand-by mode controlled by EN pin for I2CBus and Reg1, Reg2, Reg3, Reg4, Reg5,
Reg6, HSD1, HSD2, HSD3
10. LVW function externally selectable
11. Individual thermal shutdown
12. Independent current limiting
13. Short circuit protection
14. Load dump protection and overvoltage shutdown