L5973D

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PIN CONNECTION

PIN DESCRIPTION

THERMAL DATA

(*) Package mounted on board

ABSOLUTE MAXIMUM RATINGS

N°

Pin

Function

1

OUT

Regulator Output.

2

SYNC

Master/slave synchronization.

3

INH

A logical signal (active high) disables the device. If INH not used the pin must be grounded.

When it is open an internal pull-up disable the device.

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.

6

VREF

7

GND

Ground.

8

VCC

Unregulated DC input voltage.

Symbol

Parameter

Value

Unit

Thermal Resistance Junction to ambient

Max.

40 (*)

°C/W

Symbol

Parameter

Value

Unit

Input Voltage

40

V

Output DC voltage

Output peak voltage at t = 0.1

µs

-1 to 40

-5 to 40

V

V

Maximum output current

int. limit.

Analog pins

4

V

INH

SYNC

-0.3 to 4

V

2.25

W

Operating junction temperature range

-40 to 150

°C

Storage temperature range

-55 to 150

°C

OUT

SYNC

INH

COMP

1

3

2

4

VCC

VREF

GND

FB

8

7

6

5

D98IN955