LM9070S ,Low-Dropout System Voltage Regulator with Keep-Alive ON/OFF Controlfeaturesprotection and a wide operating temperature range.n Reverse battery protectionAuniquetwo-in ..
LM9070S ,Low-Dropout System Voltage Regulator with Keep-Alive ON/OFF Controlfeatures an active low de- n 3% output voltage tolerancelayed reset output flag which can be used t ..
LM9071SX ,Low-Dropout System Voltage Regulator with Delayed Restfeatures such as reverse battery, over-n Short circuit protectionvoltage shutdown, thermal shutdown ..
LM9071T ,Low-Dropout System Voltage Regulator with Delayed RestElectrical Characteristics (Note 5)The following specifications apply for V = 6V to 26V, −40˚C ≤ T ..
LM9072S ,Dual Tracking Low-Dropout System RegulatorApplicationsKeep Alive input to allow a system to remain powered aftern Automotive module supply po ..
LM9074M ,Low-Dropout System Voltage Regulator with Keep-Alive ON/OFF ControlElectrical CharacteristicsThe following specifications apply for V = 7.5V to 16.5V, −40˚C ≤ T ≤ 125 ..
LPC2132FHN64 ,Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP flash with 10-bit ADC and DAC
LPC2132FHN64 ,Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP flash with 10-bit ADC and DAC
LPC2134FBD64 ,Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP Flash with 10-bit ADC and DAC
LPC2134FBD64 ,Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP Flash with 10-bit ADC and DAC
LPC2141FBD64 ,Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
LPC2141FBD64 ,Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
LM9070S
Low-Dropout System Voltage Regulator with Keep-Alive ON/OFF Control
LM9070
Low-Dropout System Voltage Regulator with Keep-Alive
ON/OFF Control
General DescriptionThe LM9070isa 5V, 3% accurate, 250 mA low-dropout
voltage regulator. The regulator featuresan active low de-
layed reset output flag which canbe usedto reseta micro-
processor systemon turn-ON andin the event that the
regulator output falls outof regulationfor any reason.An
external capacitor programsa delay time interval before the
reset output can return high.
Designedfor automotive application the LM9070 containsa
varietyof protection features such as reverse battery,
over-voltage shutdown, thermal shutdown, input transient
protection anda wide operating temperature range. unique two-input logic control schemeis usedto enableor
disable the regulator output.An ON/OFF input canbe pro-
videdbyan ignition switch derived signal whilea second,
Keep-Alive input,is generatedbya system controller. This
allowsfora systemto remain ON after ignition has been
switched OFF. The system controller can then executea
power-down routine and after which commandthe regulator
OFFtoa low quiescent current state (60µA max).
Design techniques have been employedto allow the regu-
latorto remain operational and not generate false reset
signals when subjectedto high levelsofRF energy (300V/m
from2 MHzto 400 MHz).
Features Automotive application reliability 3% output voltage tolerance Insensitiveto radiated RFI Dropout voltage less than 800 mV with 250 mA output
current Externally programmed reset delay interval Keep-alive feature with2 logic control inputs 60V Load dump transient protection Thermal shutdown Short circuit protection and disable safety features Reverse battery protection Low OFF quiescent current,50µA maximum Wide operating temperature range −40˚Cto +125˚C TO-263 and 20-pin power surface mount packages Lead form compatible with TLE4267 TO-220 regulator
(package TA07D)
Connection Diagrams and Ordering Information (Top View)
7-Lead TO-263
Surface Mount Package
20-Pin SO PackageBackside metalis internally connectedto ground.
Order Number LM9070S
SeeNS Package Number TS7BOrder Number LM9070M
See NS Package Number M20B
August 2002
LM9070
Low-Dropout
System
oltage
Regulator
with
Keep-Alive
ON/OFF
Control
