LX8630-33CDD datasheet(5/9 Pages) MICROSEMI

5 / 9 page

Microsemi

Linfinity Microelectronics Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 5

Rev. 1.0a,2000-11-28

LX8630-xx

3A BiCMOS Very Low Dropout Regulators

PRODUCTION DATA SHEET

M I CROS E M I

COM P A N Y

LX8630-xx

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

LX8630-00 ADJUSTABLE OUTPUT, 3A

TJ = 25

°C

1.23

1.25

1.27

Reference Voltage

VREF

Over Temperature

1.22

1.25

1.28

Line Regulation

VREG

VIN = (VO + 0.6V) to 5.5V @ ADJ Pin (Note 1)

Load Regulation

IREG

IOUT = 10mA to 3A @ ADJ Pin

IOUT = 3A,

OUT = -1%, TJ = 85°C

0.4

0.6

IOUT = 1.5A,

OUT = -1%

0.3

0.45

Dropout Voltage

VDO

IOUT = 10mA,

OUT = -1%

0.05

0.15

Short Circuit Current

ISC

VOUT = 0V

6.5

Quiescent Current

IOUT = 10mA to 3A

400

600

Quiescent Current in Shutdown

VIN= 4.8V; VSHDN<0.8V

0V < VIN < VOUT, VOUT < 5.5V (at VOUT)

650

Reverse Leakage Current

IREV

0V < VIN < VOUT, VOUT < 5.5V (at VIN)

-50

Bias Current at ADJ Pin

IBIAS

100

VSHDN falling

0.8

(VIN/2)

Shutdown Threshold

VSHDN

VSHDN rising

(VIN/2)

VSHDN < 0.8V

-2

SHDN Bias Current

ISHDN

VSHDN = 3V

-1

Note 1: VIN min.

100

150

200

250

300

0.1

0.5

1.0

1.5

2.0

2.5

3.0

Current Load (Amps)

+125

+25

-25

CHART 1 – Dropout Voltage vs. Output Current (Typical – LX8630-33CCD)

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