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shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device. ”

Low Power-Loss Voltage Regulators

PQ3RF43

3.3V/4.6V Output Low Power-Loss Voltage Regulator

s Outline Dimensions

PQ3RF43

(Unit : mm)

s Features

¡Low power-loss

(Dropout voltage : MAX.0.5V at Io = 4.0A)

(Dropout voltage : MAX.1.0V at Io = 4.6A)

¡Compact resin full-mold package (TO-220 package)

¡3.3V/4.6A output type

¡High-precision output voltage type

Output voltage precision :

±2.5%

¡Built-in ON/OFF control function

¡Built-in overcurrent protection, overheat protection

function

s Applications

¡Power supplies for various electronic equipment such as

personal computers

Parameter

Symbol

Rating

Unit

10

10

4.6

1.8

18

150

-20 to +80

-40 to +150

260 (For 10s.)

V

V

A

W

˚C

˚C

˚C

˚C

Input voltage

ON/OFF control terminal voltage

Output current

Power dissipation (No heat sink)

Power dissipation (With infinite heat sink)

Junction temperature

Operating temperature

Storage temperature

8 Soldering temperature

*1

*1

*2

s Absolute Maximum Ratings

PQ3RF43

10.2MAX

φ3.2±0.1

+0.3

-0

4-1.4

+0.2

-0.1

4-0.6

3-(2.54)

4.5±0.2

2.8±0.2

(1.5)

(0.5)

q

1

q

2

q

3

q

4

3

12

4

Control circuit

Internal connection diagram

3 GND

4 ON/OFF control

· Please refer to the chapter“ Handling Precautions ”.