L5954 Datasheet, PDF (1/15 Pages) STMicroelectronics – Multiple multifunction voltage regulator for car radio

L5954
Multiple multifunction voltage regulator for car radio
Features
■ 5 regulators:
– 10 V (350 mA)
– 8.5 V (175 mA)
) _{– 5 V (350 mA)}
t(s ^{– 5 V (250 mA)}
c _{– 8 V/10 V (1 A)}
du ■ All regulators are low dropout
ro ■ 3 high side drivers:
P _{– 2 A (HSD1)}
te ^{– 0.45 A (HSD2 and HSD3)}
le ■ No external charge pump capacitors are
o _required
bs ■ Standby mode controlled by 3 input pins:
O _{– Enable for Reg2 and Reg3}
- _{– I}2_{C bus for Reg1, Reg4, Reg5, Hsd1, Hsd2,}
t(s) ^Hsd3
■ Individual thermal shutdown
uc ■ Independent current limiting
rod ^{■ Short circuit protection}
■ Load dump protection and overvoltage
P _shutdown
te _{■ ESD protected}
Multiwatt15
Description
The L5954 is an integration of three high side
drivers and five regulators developed to provide
the power for an audio system.
The outputs of the IC are controlled via the I²C
bus and the Enable input.
External protection must be provided for reverse
battery protection.
Obsole ^{Table 1.}
Device summary
Order code
Package
Packing
L5954
Multiwatt15
Tube
July 2010
Doc 17717 Rev 1
1/15
www.st.com
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