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L5955

STMicroelectronics
Part Number L5955
Manufacturer STMicroelectronics
Description Multiple multifunction voltage regulator
Published Sep 6, 2013
Detailed Description L5955 Multiple multifunction voltage regulator for car radio Features ■ 2 stand-by regulators: 3.3V (125mA) 1.5V (300mA...
Datasheet PDF File L5955 PDF File

L5955
L5955

Overview
L5955 Multiple multifunction voltage regulator for car radio Features ■ 2 stand-by regulators: 3.
3V (125mA) 1.
5V (300mA) 6 regulators: 10V (40mA) 8.
5V (200mA) 3.
3V (850mA) 8/10V (1A) 5/3.
3/1.
8V (200mA) 1.
8/2.
5V(200mA) All regulators are low dropout outputs The different outputs voltage are controlled by I2C Bus.
Reg3 on/off controlled by enable Reg1, Reg2, Reg4, Reg5, Reg6 on/off controlled by I2CBus.
3 high side drivers: 2A (HSD1) 0.
45A (HSD2 & HSD3) No external charge pump capacitors are required Stand-by mode controlled by EN pin for I2C Bus and Reg1, Reg2, Reg3, Reg4, Reg5, Reg6, HSD1, HSD2, HSD3 LVW function externally selectable Individual thermal shutdown Device summary Order code L5955 Package Flexiwatt27 Packing Tube ■ ■ ■ ■ Flexiwatt27 ■ ■ ■ ■ ■ Independent current limiting Short circuit protection Load dump protection and overvoltage shutdown 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.
■ ■ ■ ■ Table 1.
August 2007 Rev 1 1/17 www.
st.
com 17 Free Datasheet http://www.
datasheet4u.
com/ Contents L5955 Contents 1 2 Block and pin connection diagrams .
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3 Electrical specification .
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4 2.
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3 Absolute maximum ratings .
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4 Thermal data .
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4 Electrical characteristics .
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4 3 Functional description .
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