LX8385-33CD datasheet(4/8 Pages) MICROSEMI

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3A L OW D ROPOUT P OSITIVE R EGULA TORS

LX8385-xx/8385A-xx/8385B-xx

PRODUCT DA T ABOOK 1996/1997

Rev. 2.0a 10/00

P RODUCTION D ATA S HEET

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Test Conditions

Units

LX8385/85A/85B-05

Min.

Typ.

Max.

Output Voltage

LX8385-05

OUT

IN = 7V, IOUT = 0mA, TA = 25°C

(Note 4)

≤ V

IN ≤

10V, 0mA

≤ I

OUT ≤ 3A, P ≤ PMAX

LX8385A/85B-05

IN = 7V, IOUT = 0mA, TA = 25°C

≤ V

IN ≤

10V, 0mA

≤ I

OUT ≤ 3A, P ≤ PMAX

Line Regulation (Note 2)

∆V

OUT (VIN)

4.75V

≤ V

IN ≤ 10V

Load Regulation (Note 2)

∆V

OUT (IOUT)

IN = 7V, 0mA ≤ IOUT ≤ IOUT (MAX)

Thermal Regulation

∆V

OUT(Pwr)

A = 25°C, 20ms pulse

Ripple Rejection (Note 3)

OUT = 100µF (Tantalum), IOUT = 3A

Quiescent Current

0mA

≤ I

OUT ≤ IOUT (MAX) , 7V ≤ V IN ≤ 10V

Dropout Voltage

LX8385-05

∆V

OUT = 1%, IOUT ≤ IOUT (MAX)

LX8385A/85B-05

∆V

OUT = 1%, IOUT ≤ IOUT (MAX)

Maximum Output Current

OUT (MAX)

IN ≤ 10V

Temperature Stability (Note 3)

∆V

OUT (T)

Long Term Stability (Note 3)

∆V

OUT (t)

A = 125°C, 1000 hours

RMS Output Noise (% of V

OUT) (Note 3)

OUT (RMS)

A = 25°C, 10Hz ≤ f ≤ 10kHz

4.950

5.00

5.050

4.900

5.00

5.100

4.960

5.00

5.040

4.950

5.00

5.050

210

525

0.01

0.02

% / W

410

1.2

1.5

1.1

1.3

3.5

0.25

0.3

0.003

Note 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to

heating effects are covered under the specification for thermal regulation.

Note 3. These parameters, although guaranteed, are not tested in production.

Note 4. See Maximum Output Current Section above.

LX8385-05/85A-05/85B-05 (5.0V Fixed)

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