L4979MD Series

Automotive Low Drop Voltage Regulator

Catalog

Automotive Low Drop Voltage Regulator

Part	Voltage Dropout (Max) [Max]	Control Features	Package / Case	Voltage - Output (Min/Fixed)	Operating Temperature [Min]	Operating Temperature [Max]	Current - Supply (Max) [Max]	Mounting Type	Voltage - Input (Max) [Max]	Protection Features	Number of Regulators	PSRR	PSRR	Current - Output	Supplier Device Package	Output Configuration	Current - Quiescent (Iq)
STMicroelectronics L4979MD013TR	0.4 V	Enable Reset Watchdog	20-SOIC (0.295" 7.50mm Width)	5 V	-40 C	150 °C	3 mA	Surface Mount	31 V	Over Temperature Short Circuit	1	PSRR	55 dB	150 mA	20-SO	Positive	20 çA

Catalog

Automotive Low Drop Voltage Regulator

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 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.