UCC283-3, UCC283-5, UCC283-ADJ, UCC383-3, UCC383-5, UCC383-ADJ

LOW DROPOUT 3A LINEAR REGULATOR FAMILY

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

4

POST OFFICE BOX 655303

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UCC283−ADJ Adjustable Output, 3 A Family

Regulating voltage at ADJ pin

TJ = 25

°C

1.23

1.25

1.27

V

Regulating voltage at ADJ pin

Over temperature

1.22

1.28

V

Line regulation voltage, at ADJ input

VVIN = VVOUT + 150 mV to 9 V

1

3

mV

Load regulation voltage, at ADJ input

IOUT = 10 mA to 3 A

2

5

mV

VOUT = 4.85 V,

IOUT = 3 A

0.4

0.6

V

Dropout voltage, VDROPOUT = VIN − VOUT

VOUT = 4.85 V,

IOUT = 1.5 A

0.2

0.45

V

Dropout voltage, VDROPOUT = VIN − VOUT

VOUT = 4.85 V,

IOUT = 10 mA

50

150

mV

Peak current limit

VVOUT = 0 V

4

7

10

A

Overcurrent threshold

3

4

5.5

A

Current limit duty cycle

VVOUT = 0 V

3

5

%

Overcurrent time out, tON

VVOUT = 0 V

300

575

1200

µs

Reverse leakage current

1 V < VVIN < VVOUT

VVOUT ≤ 9 V, at VVOUT

30

100

µA

Bias current at ADJ input

20

250

nA

Quiescent current

No load

400

650

µA

Shutdown threshold

At CT input

0.25

0.65

V

Quiescent current in shutdown

VVIN = 9 V

40

75

µA

UVLO

VIN where VOUT passes current

2.5

2.8

3

V

Input voltage

VIN

9 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CT

−0.3 V to 3 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ADJ

−0.3 V to 9 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−55

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead Temperature (soldering, 10 seconds)

300

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.