L4989 datasheet(1/19 Pages) STMICROELECTRONICS

部件名	L4989

功能描述	Low power voltage regulator

PDF	19 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 19 page

November 2008

Rev 3

1/19

19

L4989

Low power voltage regulator

Features

■ Operating DC supply voltage range 5.6V to

31V

■ Very low quiescent current with watchdog

disabled

■ Precision output voltage (3%)

■ Low drop voltage (180mV typ ai Io=150mA)

■ Reset circuit sensing the output voltage down

to 1V

■ Programmable reset delay with external

capacitor

■ Watchdog disable input

■ Programmable watchdog timer with external

capacitor

■ Thermal shutdown and short circuit protection

■ Wide temperature range (Tj = -40°C to 150°C)

SO-8

SO-20

Table 1.

Device summary

Package

Order codes

Tube

Tape & reel

SO-8

L4989D

L4989D013TR

SO-20

L4989MD

L4989MD013TR

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)

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