DHC2805SH datasheet(8/9 Pages) MSK

8 / 9 page

TYPICAL PERFORMANCE CURVES

Rev. G 8/06

LINE TRANSIENT RESPONSE

0.0

1.6

OUTPUT CURRENT, IOUT (A)

LOW LINE DROP OUT

0.4

0.8

1.2

10K

90K

60K

20K

30K 40K

TIME, t (500

µsec/DIV)

LOAD TRANSIENT RESPONSE 1000

µF

LINE TRANSIENT RESPONSE

EFFICIENCY CONTOURS

OUTPUT CURRENT, IOUT (A)

.96

.12 .24

.48

.78

1.2

SET POINT RESISTOR, RSP (Ω)

TIME, t (5msec/DIV)

TURN ON THRESHOLD

TURN ON RESPONSE

100 200 400

FREQUENCY, f (Hz)

–100

AUDIO REJECTION

–20

–40

1K 2K

10K 20K

100K

–60

–80

5.0V

28V

VOUT

VIN

TEMP = 25

°C

TEMP = 25

°C

30%

40%

50%

55%

60%

65%

68%

70%

71%

72%

EFFICIENCY CONTOURS

OUTPUT CURRENT, IOUT (A)

TEMP =

125

°C

30%

40%

50%

55%

60%

63%

66%

68%

69%

70%

EFFICIENCY CONTOURS

OUTPUT CURRENT, IOUT (A)

.96

.24

.12

.48

.78

1.2

.96

.24

.12

.48

.78

1.2

TEMP = –55

°C

30%

40%

50%

55%

68%

69%

70%

60%

66%

63%

INCLUDES 1000

µF ON OUTPUT BUS

TIME, t (200

µsec/DIV)

TIME, t (200

µsec/DIV)

TIME, t (200

µsec/DIV)

LOAD TRANSIENT RESPONSE 100

µF

INCLUDES 100

µF ON OUTPUT BUS

INCLUDES 100

µF ON OUTPUT BUS

INCLUDES 100

µF ON OUTPUT BUS

INCLUDES 100

µF ON OUTPUT BUS

TIME, t (100

µsec/DIV)

LOAD TRANSIENT RESPONSE

1.2A

LOAD = 1.2A

1.2A

600mA

VOUT

VIN

11V

16V

600mA

80V

40V

1.2A

VOUT

IOUT

NO OUTPUT BUS CAPCITANCE

VIN = 28V

IOUT = 1.2A

DHC2805S

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