LX8586 datasheet(3/9 Pages) MICROSEMI

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LX8586 / LX8586A

PRODUCTION DATA SHEET

Microsemi

Integrated Products Division

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

Page 3

Rev. 1.0a, 2005-11-10

6A Low Dropout Positive Regulators

ELECTRICAL CHA RACTERISTICS

Unless otherwise specified, the following specifications apply over the operating ambient temperature 0

°C

≤ T

A ≤ 70°C; VIN – VOUT =

3V, IOUT = 6A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient

temperature.

LX8586/86A-00

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

LX8586-00 / LX8586A-00 (ADJUSTABLE)

IOUT = 10mA, TA = 25°C

1.238

1.250

1.262

Reference Voltage

VREF

10mA < IOUT < 6A, 1.5V < (VIN – VOUT),

VIN < 7V, P < PMAX

1.225

1.250

1.275

Line Regulation (Note 2)

∆VREF(VIN)

IOUT = 10mA, 1.5V < (VIN – VOUT), VIN < 7V

0.035

0.20

Load Regulation (Note 2)

∆VREF(IOUT) VIN – VOUT = 3V, 10mA < IOUT < 6A

0.1

0.5

Thermal Regulation

∆VOUT(Pwr) TA = 25°C, 20ms pulse

0.01

0.02

% /W

Ripple Rejection (Note 3)

VOUT = 3.3V, f = 120Hz, COUT = 100µF Tantalum,

VIN = 5V, CADJ = 10µF, TA = 25°C, IOUT = 6A

Adjust Pin Current

IADJ

100

µA

Adjust Pin Current Change

∆IADJ

10mA < IOUT < 6A, 1.5V < (VIN – VOUT), VIN < 7V

0.2

µA

LX8586-00

∆VREF = 1%, IOUT = 6A

1.1

1.3

Dropout Voltage

LX8586A-00

∆V

∆VREF = 1%, IOUT = 6A

0.9

1.1

Minimum Load Current

IOUT(MIN)

VIN < 7V

Maximum Output Current

IOUT(MAX)

1.4V < (VIN – VOUT), VIN < 7V

6.1

Temperature Stability

∆VOUT(T)

0.25

Long Term Stability

∆VOUT(t)

TA = 125°C, 1000hrs

0.3

RMS Output Noise (% of VOUT)

VOUT(RMS)

TA = 25°C, 10Hz < f < 10kHz

0.003

LX8586-33 / LX8586A-33 (3.3V FIXED)

VIN = 5V, IOUT = 0mA, TA = 25°C

3.267

3.3

3.333

Output Voltage

VOUT

4.75V < VIN < 10V, 0mA < IOUT < 6A, P < PMAX

3.235

3.3

3.365

4.75V < VIN < 7V

Line Regulation (Note 2)

∆VOUT(VIN)

4.75V < VIN < 10V

Load Regulation (Note 2)

∆VOUT(IOUT) VIN = 5V, 10mA < IOUT < IOUT(MAX)

Thermal Regulation (Note 3)

∆VOUT(Pwr) TA = 25°C, 20ms pulse

0.01

0.02

% /W

Ripple Rejection (Note 3)

COUT = 100µF Tantalum, IOUT = 6A, TA = 25°C

Quiescent Current

0mA < IOUT < IOUT(MAX), 4.75 < VIN < 10V

LX8586-33

∆VOUT = 1%, IOUT < IOUT(MAX)

1.1

1.3

Dropout Voltage

LX8586A-33

∆V

∆VOUT = 1%, IOUT < IOUT(MAX)

0.9

1.1

Maximum Output Current

IOUT(MAX)

VIN < 7A

6.1

Temperature Stability (Note 3)

∆VOUT (T)

0.25

Long Term Stability (Note 3)

∆VOUT (t)

TA = 25°C, 1000 hrs

0.3

RMS Output Noise (% of VOUT)

(Note 3)

VOUT(RMS)

TA = 25°C, 10Hz < f < 10kHz

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.

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