L5972D Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L5972D

2A SWITCH STEP DOWN SWITCHING REGULATOR

STMicroelectronics 

L5972D

PIN CONNECTION

OUT

GND

GND

COMP

1

8

2

7

3

6

4

5

D02IN1367

VCC

GND

GND

FB

PIN DESCRIPTION

N°

Pin

Function

1

OUT Regulator Output.

2,3,6,7 GND Ground.

4

COMP E/A output for frequency compensation.

5

FB Feedback input. Connecting directly to this pin results in an output voltage of 1.23V. An external

resistive divider is required for higher output voltages.

8

VCC Unregulated DC input voltage.

THERMAL DATA

Symbol

Parameter

Rth (j-amb) Thermal Resistance Junction to ambient

(*) Package mounted on board (4cm2 ground-plane)

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

V8

Input Voltage

V1

Out pin DC voltage

Out pin peak voltage at ∆t = 0.1µs

I1

Maximum output current

V4, V5 Analog pins

Ptot

Power dissipation at Tamb ≤ 70°C

Tj

Operating junction temperature range

Tstg

Storage temperature range

Max.

Value

65 (*)

Unit

°C/W

Value

40

-1 to 40

-5 to 40

int. limit.

4

1.2

-40 to 150

-55 to 150

Unit

V

V

V

V

W

°C

°C

2/10

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