L4979D - ST Microelectronics

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

L4979D
Manufacturer

ST Microelectronics
ChipWorker Part#

CW109755193
Category

Voltage Regulator
Package

SOIC-8
Description

LDO Regulator Pos 5V 0.3A 8Pin SO N Tube
Documentation

Datasheet

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L4979D Specifications

Attribute	Attribute Value

Part Number	L4979D
Manufacturer	ST Microelectronics
ChipWorker Part#	CW109755193
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Number of Outputs	1 Output
Output Voltage	5 V
Output Current	150 mA
Quiescent Current	3 mA
voltage rating	0.2V @150mA
Input Voltage (Max)	31 V
Input Voltage (Min)	6 V
Output Current (Max)	0.3 A
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Accuracy	±2 %
Input Voltage	5.6V ~ 31V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.65 mm
Operating Temperature	-40℃ ~ 150℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

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.
Features
■ 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

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