LX8587A-33CDD datasheet(4/8 Pages) MICROSEMI

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3A L OW D ROPOUT P OSITIVE R EGULATORS

LX8587-xx/8587A-xx

PRODUCT DA T ABOOK 1996/1997

Rev. 1.2

3/98

P RODUCTION D ATA S HEET

ELECTRICAL CHARACTERISTICS

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.

Parameter

Symbol

Test Conditions

Units

LX8587-33/87A-33

Min.

Typ.

Max.

Output Voltage

OUT

IN = 5V, IOUT = 0mA, TA = 25°C

4.75V

≤ V

IN ≤

10V, 0mA

≤ I

OUT ≤ 3A, P ≤ PMAX

Line Regulation (Note 2)

∆V

OUT

4.75V

≤ V

IN ≤ 7V

IN )

4.75V

≤ V

IN ≤ 10V

Load Regulation (Note 2)

∆V

OUT (IOUT)

IN = 5V, 0mA ≤ IOUT ≤ IOUT (MAX)

Thermal Regulation (Note 3)

∆V

OUT(Pwr)

A = 25°C, 20ms pulse

Ripple Rejection (Note 3)

OUT = 100µF (Tantalum), IOUT = 3A

Quiescent Current

0mA

≤ I

OUT ≤ IOUT (MAX) , 4.75V ≤ VIN ≤ 10V

Dropout Voltage

LX8587-33

∆V

OUT = 1%, IOUT ≤ IOUT (MAX)

LX8587A-33

∆V

OUT = 1%, IOUT ≤ IOUT (MAX)

Maximum Output Current

OUT (MAX)

IN ≤ 7V

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

3.267

3.3

3.333

3.235

3.3

3.365

210

515

0.01

0.02

% / W

410

1.1

1.3

1.2

3.0

5.0

0.25

0.3

0.003

LX8587-33/87A-33 (3.3V Fixed)

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