L4979D, L4979MD
Automotive low dropout voltage regulator
*$3*&)7
SO-8
*$3*&)7
SO-20
Features
AEC-Q100 qu...
L4979D, L4979MD
Automotive low dropout voltage
regulator
*$3*&)7
SO-8
*$3*&)7
SO-20
Features
AEC-Q100 qualified Operating DC supply voltage range 5.6 V to
31 V
Low quiescent current (6 µA typ. @ 25 °C with enable low)
High precision output voltage (+/-2%)
Low dropout voltage less than 0.5 V Reset circuit sensing the output voltage down
to 1 V
Programmable reset pulse delay with external capacitor
Watchdog Programmable watchdog timer with external
capacitor
Thermal shutdown and short circuit protection
Automotive temperature range (Tj = -40 °C to 150 °C)
Enable input for enabling/disabling the voltage
regulator output
Description
L4979D and L4979MD are low dropout linear
regulators with microprocessor control functions such as low voltage reset, watchdog, on/off control. Typical quiescent current is 100 µA in
Datasheet - production data
very low output current mode and enabled
regulator. The devices drop to 6 µA with not enabled
regulators.
On chip trimming results in high output voltage accuracy (+/-2%). Accuracy is kept over wide temperature range, line and load variation.
The maximum input voltage is 40 V. The max output current is internally limited. Internal temperature protection disables the voltage
regulator output.
Table 1. Device summary
Package
Order codes
Tube
Tape and reel
SO-8 SO-20
L4979D L4979MD
L4979D013TR L4979MD013TR
September 2018
This is information on a product in full production.
DS3717 Rev 11
1/22
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