FAN1582

PRODUCT SPECIFICATION

2

REV. 1.1.2 2/26/03

Pin Assignments

Pin Definitions

Internal Block Diagram

Pin Number

Pin Name

Pin Function Descrition

1

VSense

Remote Voltage Sense. Connect this pin to the load to permit true

remote sensing and avoid trace drops.

2

ADJ/GND

Adjust or Ground. On the FAN1582, this pin forms the feedback to

determine the output voltage. On the FAN1582-1.5 and -2.5, connect this

pin to ground.

3

VOUT

Output Voltage. This pin and the tab are output.

4

VCNTL

Control Voltage. This pin draws small-signal power to control the

FAN1582 circuitry. Connect to a voltage higher than VIN, as shown in the

applications circuits.

5

VIN

Input Voltage.

FRONT VIEW

FRONT VIEW

12 3 4 5

FRONT VIEW

12 3 4 5

FAN1582M-1.5, -2.5

FAN1582M

FAN1582P

FRONT VIEW

FAN1582P-1.5, -2.5

FRONT VIEW

FAN1582D

FRONT VIEW

FAN1582D-1.5, -2.5

5-Lead Plastic TO-263

Θ

Tab is out.

5-Lead Plastic SPAK

Θ

Tab is out.

5-Lead Plastic TO-252 DPAK

Θ

Tab is out.

12

3

4 5

12

3

4 5

1

2

3

4

5

1

2

3

4

5

*With package soldered to 0.5 square inch copper area over backside ground plane or internal

power plane,

θ

can provide a thermal resistance lower than 30

°C/W.

Current

Limit

Thermal

Shutdown

Vref

Vin, Power

Output

Sense

Adj

2

1

3

5

4

Voltage Loop

Amplifier