L4976 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L4976

1A step down switching regulator

STMicroelectronics 

L4976

3

Electrical data

Electrical data

3.1

Maximum ratings

Table 2. Absolute maximum ratings

Symbol

DIP8

S016W

Parameter

V5

V11 Input voltage

Output DC voltage

V4

V5, V6

Output peak voltage at t = 0.1µs, f = 200kHz

I4

I5, I6 Maximum output current

V6-V5 V12-V11

V6

V12 Bootstrap voltage

V7

V13 Analogs input voltage (VCC = 24V)

V8

V14 (VCC = 20V)

PTOT

TJ,TSTG

Power dissipation a TA ≤ 60°C

Junction and storage temperature

DIP8

SO16

Value

Unit

58

V

-1

V

-5

V

internal limit

14

V

70

V

12

V

6

V

-0.3

V

1

W

0.8

W

-40 to 150

°C

3.2

Thermal data

Table 3. Thermal data

Symbol

Parameter

RthJA

Maximum thermal resistance junction-ambient

1. Package mounted on board

DIP8

90 (1)

S016W Unit

110 (1) °C/W

3.3

Operating temperature rating

Table 4. Operating temperature rating

Symbol

Parameter

TJ

Junction temperature range

Value

Unit

-40 to 150

°C

5/17

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