UCC283TDTR-ADJ datasheet(3/22 Pages) TI1

Part #	UCC283TDTR-ADJ

Description	LOW-DROPOUT 3-A LINEAR REGULATOR FAMILY

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

LOW DROPOUT 3A LINEAR REGULATOR FAMILY

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

3

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics TA = 0°C to 70°C for the UCC383−x series, TA = −40°C to 85°C for the

UCC283−x, VVIN = VVOUT + 1.5 V, IOUT = 10 mA, CIN = 10 mF, COUT = 22 mF. For the UCC283−ADJ, VVIN

= 6.5 V, VOUT = 5.0 V, CT = 750 pF, TJ = TA unless otherwise stated

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UCC283−5 Fixed 5 V, 3 A Family

Output voltage

TJ = 25°C

4.925

5

5.075

V

Output voltage

Over temperature

4.875

5.125

V

Line regulation

VVIN = 5.15 V to 9 V

2

10

mV

Load regulation

IOUT = 10 mA to 3 A

10

20

mV

IOUT = 3 A,

VOUT = 4.85 V

0.4

0.6

V

Dropout voltage, VDROPOUT = VVIN − VVOUT

IOUT = 1.5 A,

VOUT = 4.85 V

0.2

0.45

V

Dropout voltage, VDROPOUT = VVIN − VVOUT

IOUT = 10 mA,

VOUT = 4.85 V

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

400

750

1400

µs

Quiescent current

No load

400

650

µA

Reverse leakage current

1 V < VVIN < VVOUT,

VVOUT ≤ 5.1 V, at VVOUT

30

75

µA

Undervoltage lockout

VIN where VOUT passes current

2.5

2.8

3

V

UCC283−3 Fixed 3.3 V, 3 A Family

Output voltage

TJ = 25°C

3.25

3.3

3.35

V

Output voltage

Over temperature

3.22

3.38

V

Line regulation voltage

VVIN = 3.45 V to 9 V

2

7

mV

Load regulation voltage

IOUT = 10 mA to 3 A

7

15

mV

IOUT = 3A,

VOUT = 3.15 V

0.5

1

V

Dropout voltage, VDROPOUT = VVIN − VVOUT

IOUT = 1.5A,

VOUT = 3.15 V

0.25

0.6

V

Dropout voltage, VDROPOUT = VVIN − VVOUT

IOUT = 10mA,

VOUT = 3.15 V

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

400

750

1400

µs

Quiescent current

No load

400

650

µA

Reverse leakage current

1 V < VVIN < VVOUT,

VVOUT ≤ 3.35 V at VVOUT

30

75

µA

Undervoltage lockout

VIN where VOUT passes current

2.5

2.8

3

V

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