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See Technical Specifications

L4979MD +BOM

Linear Voltage Regulator IC Positive Fixed 1 Output 150mA 20-SO

Manufacturer:

STMicroelectronics, Inc
Mfr.Part #:

L4979MD
Datasheet:

L4979MD Datasheet (PDF)
Output Configuration:

Positive
Output Type:

Fixed
Number Of Regulators:

1
Voltage - Input (Max):

31V
EDA/CAD Models:

Request Free CAD Models for L4979MD

L4979MD General Description

L4979MD is a low dropout linear regulator with microprocessor control functions, including low voltage reset, watchdog, and on/off control. It offers a typical quiescent current of 100 μA in very low output current mode and enabled regulator, which helps to minimize power consumption while ensuring reliable performance. Furthermore, the device features on-chip trimming for high output voltage accuracy (+/-2%) over a wide temperature range, as well as consistent operation in the face of varying line and load conditions. Additionally, with a maximum input voltage of 40V and internally limited max output current, the L4979MD is designed to provide robust and reliable regulation. The internal temperature protection further enhances the safety and reliability of the regulator by disabling the voltage regulator output in case of overheating

Key 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 (T_j = -40 °C to 150 °C)
Enable input for enabling/disabling the voltage regulator output

Application

Switching Power Supplies including Mini adapters and Displays
Instrumentation
Engine Control Recirculation Diodes
Freewheeling Diode Where Space is at a Premium
Automotive
Lighting
Gasoline Direct Injection

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear	Series	-
Output Configuration	Positive	Output Type	Fixed
Number of Regulators	1	Voltage - Input (Max)	31V
Voltage - Output (Min/Fixed)	5V	Voltage - Output (Max)	-
Voltage Dropout (Max)	0.4V @ 150mA	Current - Output	150mA
Current - Quiescent (Iq)	20 µA	Current - Supply (Max)	3 mA
PSRR	55dB (100Hz)	Control Features	Enable, Reset, Watchdog
Protection Features	Over Temperature, Short Circuit	Operating Temperature	-40°C ~ 150°C
Mounting Type	Surface Mount	Base Product Number	L4979