SPX2954 Просмотр технического описания (PDF) - Unspecified

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SPX2954

250mA Low Dropout Voltage Regulator

Unspecified 

Typical Performance Characteristics (Continued)

SPX2954

500

I L = 150m A

400

300

200

~

~

40

20

I L = 100μ A

0

-75 -50 -25 0 25 50 75 100 125 150

TEMPERATURE (ºC)

Drop-Out Voltage

8

V OUT = 5V

6

4

HYSTERESIS

2

0

PULLUP RESISTOR TO

-2

SEPARATE 5V SUPPLY

0

1

2

3

4

5

INPUT VOLTAGE (V)

Error Comparator Output

10

I O = 100μ A

5

2

I O = 1mA

1

I O = 100m A

0.5

0.2

V OUT = 5V

0.1

C L = 1μ F

0.05

0.02

0.01

10 100 1K 10K 100K 1M

FREQUENCY (Hz)

Output Impedance

500

400

300

200

T J = 25º C

100

0

100 μA

1mA

10mA

OUTPUT CURRENT

Drop-Out Voltage

100mA

2.5

T A = 125ºC

2.0

1.5

T A = 25ºC

1.0

T A = -55ºC

0.5

0.0

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

OUTPUT LOW VOLTAGE (V)

Comparator Sink Current

90

80

70

IL =0

60

50

40

C L = 1μ F

30

V IN = 6V

V OUT = 5V

20

I L = 100μ A

10 1

10 2 10 3 10 4

10 5 10 6

FREQUENCY (Hz)

Ripple Rejection

240

230

220

210

200

190

180

170

-75 -50 -25 0 25 50 75 100 125 150

TEMPERATURE (ºC)

Short Circuit Current

100

mV

50

mV

0

-50

mV ~~

8V

C L = 1μ F

I L = 1mA

V OUT = 5V

6V

4V

0 200 400 600 800

TIME(μs)

Line Transient Response

90

80

70

I L = 1m A

60

C L = 1μ F

V IN = 6V

V OUT = 5V

50

40

30

20

10 1

I L = 10m A

10 2 10 3 10 4

FREQUENCY (Hz)

10 5 10 6

Ripple Rejection

REV1A

7/15

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