L4989MD Datasheet, PDF (1/19 Pages) STMicroelectronics – Low power voltage regulator

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 I_o=150mA)
) ^{■ Reset circuit sensing the output voltage down}
t(s ^{to 1V}
c ^{■ Programmable reset delay with external}
u capacitor
d _{■ Watchdog disable input}
ro _{■ Programmable watchdog timer with external}
P _capacitor
te _{■ Thermal shutdown and short circuit protection}
ole ^{■ Wide temperature range (T}j ^{= -40°C to 150°C)}
SO-8
SO-20
) ^{- Obs} _{Table 1. Device summary}
ct(s _Package
rodu ^SO-8
Obsolete ^{P SO-20}
Tube
L4989D
L4989MD
Order codes
Tape & reel
L4989D013TR
L4989MD013TR
November 2008
Rev 3
1/19
www.st.com
19