LX8117-XX_05 datasheet(4/11 Pages) MICROSEMI

Part #	LX8117-XX

Description	0.8 , 1 & 1 .2A LOW DROPOUT POSI T I V E REGULATORS

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Manufacturer	MICROSEMI [Microsemi Corporation]

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0.8, 1 & 1.2A L OW DROPOUT POSITIVE REGULATORS

LX8117-xx/8117A-xx/8117B-xx

PRODUCT DA T ABOOK 1996/1997

Rev. 1.5a

4

P RODUCTION D ATA S HEET

ELECTRICAL CHARACTERISTICS

(continued)

Parameter

Symbol

Test Conditions

Units

LX8117 / 17A / 17B-25

Min.

Typ.

Max.

Output Voltage

V

OUT

I

OUT = 10mA, VIN = 5V, TA = 25°C

0mA

≤ I

OUT ≤ IOUT (MAX) , 4.75V ≤ VIN ≤ 10V

Line Regulation (Note 3)

∆V

OUT

(V

IN)

I

OUT = 0mA, 4.25V ≤ VIN ≤ 10V

Load Regulation (Note 3)

∆V

OUT (IOUT)

V

IN = 4.25V, 0mA ≤ IOUT ≤ IOUT (MAX)

Dropout Voltage

∆VI

OUT = 100mA

(Note 4)

I

OUT = 500mA

LX8117-25

I

OUT = IOUT (MAX)

LX8117A/B-25

I

OUT = IOUT (MAX)

Current Limit

LX8117-25

I

OUT (MAX)

(V

IN - VOUT) = 5V, TJ = 25°C

LX8117A-25

(V

IN - VOUT) = 5V, TJ = 25°C

LX8117B-25

(V

IN - VOUT) = 5V, TJ = 25°C

Quiescent Current

I

Q

V

IN ≤ 10V

Thermal Regulation

∆V

OUT(Pwr)

T

A = 25°C, 30ms pulse

Ripple Rejection

f

RIPPLE =120Hz, (VIN - V OUT) = 3V, VRIPPLE = 1Vp-p

Temperature Stability

∆V

OUT (T)

Long Term Stability

∆V

OUT (t)

T

A = 125°C, 1000 hours

RMS Output Noise (% of V

OUT)VOUT (RMS)

10Hz

≤ f ≤ 10kHz

2.475

2.500

2.525

V

2.450

2.500

2.550

V

16

mV

210

mV

0.97

1.10

V

1.00

1.15

V

1.05

1.20

V

1.15

1.30

V

800

950

mA

1000

1200

mA

1200

1500

mA

4.5

10

mA

0.08

0.2

%/W

60

75

dB

0.5

%

0.3

%

0.003

%

LX8117-25 / 8117A-25 / 8117B-25 (2.5V Fixed)

Parameter

Symbol

Test Conditions

Units

LX8117 / 17A / 17B-28

Min.

Typ.

Max.

Output Voltage

V

OUT

I

OUT = 10mA, VIN = 4.85V, TA = 25°C

0mA

≤ I

OUT ≤ IOUT (MAX) , 4.25V ≤ VIN ≤ 10V

0mA

≤ I

OUT ≤ 500mA, VIN = 3.95V

Line Regulation (Note 3)

∆V

OUT

(V

IN)

I

OUT = 0mA, 4.25V ≤ VIN ≤ 10V

Load Regulation (Note 3)

∆V

OUT (IOUT)

V

IN = 4.25V, 0mA ≤ IOUT ≤ IOUT (MAX)

Dropout Voltage

∆VI

OUT = 100mA

(Note 4)

I

OUT = 500mA

LX8117-28

I

OUT = IOUT (MAX)

LX8117A/B-28

I

OUT = IOUT (MAX)

Current Limit

LX8117-28

I

OUT (MAX)

(V

IN - VOUT) = 5V, TJ = 25°C

LX8117A-28

(V

IN - VOUT) = 5V, TJ = 25°C

LX8117B-28

(V

IN - VOUT) = 5V, TJ = 25°C

Quiescent Current

I

Q

V

IN ≤ 10V

Thermal Regulation

∆V

OUT(Pwr)

T

A = 25°C, 30ms pulse

Ripple Rejection

f

RIPPLE =120Hz, (VIN - V OUT) = 3V, VRIPPLE = 1Vp-p

Temperature Stability

∆V

OUT (T)

Long Term Stability

∆V

OUT (t)

T

A = 125°C, 1000 hours

RMS Output Noise (% of V

OUT)VOUT (RMS)

10Hz

≤ f ≤ 10kHz

2.820

2.850

2.880

V

2.790

2.850

2.910

V

2.790

2.850

2.910

V

16

mV

210

mV

0.97

1.10

V

1.00

1.15

V

1.05

1.20

V

1.15

1.30

V

800

950

mA

1000

1200

mA

1200

1500

mA

4.5

10

mA

0.08

0.2

%/W

60

75

dB

0.5

%

0.3

%

0.003

%

LX8117-28 / 8117A-28 / 8117B-28 (2.8V Fixed)

Notes: 3. See thermal regulation specification for changes in output voltage due to heating effects. Load regulation and line regulation are measured at a constant junction

temperature by low duty cycle pulse testing.

4. Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum input/output differential measured

at the specified output current. Test points and limits are also shown on the Dropout Voltage Curve.

5. Minimum load current is defined as the minimum output current required to maintain regulation.

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