L4979D 데이터 시트보기 (PDF) - STMicroelectronics

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L4979D

Low drop voltage regulator

STMicroelectronics 

L4979D, L4979MD

2

Electrical specifications

Electrical specifications

2.1

Absolute maximum ratings

Stressing the device above the ratings listed in Table 3 may cause permanent damage to

the device. These are stress ratings only and operation of the device at these or any other

conditions above those indicated in the operating sections of this specification is not implied.

Exposure to the conditions reported in this section for extended periods may affect device

reliability. Refer also to the STMicroelectronics SURE program and other relevant quality

documents.

Table 3.

Symbol

Absolute maximum ratings

Parameter

Value

Unit

Vvsdc DC supply voltage

-0.3 to 40

V

Ivsdc

Vvo

Input current

DC output voltage

Internally limited

-0.3 to 6 (1)

V

Ivo

DC output current

Internally limited

Vwi Watchdog input voltage

-0.3 to Vvo +0.3

V

Vod Open drain output voltage (RES)

-0.3 to Vvo +0.3

V

Iod Open drain output current (RES)

Internally limited

Vcr Reset delay voltage

-0.3 to Vvo +0.3

V

Vcw Watchdog delay voltage

-0.3 to Vvo +0.3

V

Ven Enable input voltage

-0.3 to 40

V

Tj

Junction temperature

-40 to 150

°C

VESD ESD voltage level (HBM-MIL STD 883C)

±2

kV

1. Using the typical application schematic with Cout= 10 µF and Iout=0 A, when the regulator is switched-on,

an overshoot exceeding 6 V could occur.This behavior does not impact the reliability of the regulator.

Table 4. Thermal data

Symbol

Parameter

Rth j-amb Thermal resistance junction to ambient

SO8

130 to 180

SO16+2+2

50 to 80

Unit

°C/W

Doc ID 10262 Rev 9

7/22

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