L4979D Low drop voltage regulator

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.

技术特性

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

功能框图

L4979D 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
L4979D	Active	0.694	1000	SO-8	Tube		L4979D
L4979D013TR	Active	0.694	1000	SO-8	Tape And Reel		L4979D013TR

DATASHEET

描述	版本	大小
DS3717 : Low drop voltage regulator	8	521KB

SCHEMATIC PACKS

描述	版本	大小
Board Schematic	1.0	8KB