Description

L4954 is a quad output voltage regulator and a three output high side driver.

Features

■ 4 regulators:

– 10 V (40 mA) low dropout

– 8.5 V (175 mA)

– 5 V (650 mA)

– 5 V (100 mA) standby

■ 3 high side drivers:

– 2 A (HSD1)

– 0.3 A (HSD2 & HSD3)

■ No external charge pump capacitors are required

■ Standby mode controlled by 3 input pins:

– EN1 for REG1, REG2, REG3 and HSD1

– EN2 for HSD2

– EN3 for HSD3

■ Individual thermal shutdown

■ Logic outputs for supply undervoltage:

– LVWARN

– Reset

■ Independent current limiting

■ Overvoltage shutdown

■ Short circuit protection

■ Load dump protection and overvoltage

■ Shutdown