DHC2803SK 데이터 시트보기 (PDF) - M.S. Kennedy
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DHC2803SK Datasheet PDF : 6 Pages
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TYPICAL PERFORMANCE
GRAPHS
DHC2803S
EFFICIENCY CONTOURS
50
30%
40%
TEMP = 25°C
40
50%
55%
60%
30
63%
65%
67%
20
68%
69%
11
.18 .36
70%
.72 1.08 1.44 1.8
OUTPUT CURRENT, IOUT (A)
LOW LINE DROP OUT
16
14
12
10
0.0 0.5 1.0 1.5 2.0
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE 1000µF
VOUT
1.8A
.9A
IOUT
INCLUDES 1000µF ON OUTPUT BUS
TIME, t (500µsec/DIV)
TURN ON THRESHOLD
28
24
20
16
12
10K
20K 30K 40K 60K 90K
SET POINT RESISTOR, RSP (Ω)
EFFICIENCY CONTOURS
50
30%
TEMP = –55°C
40%
40
50%
55%
30
60%
63%
65% 66%
20
67%
68%
11
68%
.18 .36 .72 1.08 1.44 1.8
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE
VOUT
1.8A
.9A
IOUT
NO OUTPUT BUS CAPCITANCE
TIME, t (100µsec/DIV)
LINE TRANSIENT RESPONSE
VOUT
40V
VIN
16V
TIME, t (200µsec/DIV)
TURN ON RESPONSE
LOAD 1.8A
3.3V
VOUT
0V
28V
0V VIN
INCLUDES 100µF ON
OUTPUT BUS
TIME, t (5msec/DIV)
3
EFFICIENCY CONTOURS
50
30%
40%
40
50%
55%
TEMP =
125°C
60%
30
62%
64%
20
65%
66%
67%
11
.18 .36 .72 1.08 1.44 1.8
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE 100µF
VOUT
1.8A
.9A
IOUT
INCLUDES 100µF ON OUTPUT BUS
TIME, t (200µsec/DIV)
LINE TRANSIENT RESPONSE
VOUT
80V
VIN
11V
TIME, t (200µsec/DIV)
AUDIO REJECTION
0
VIN = 28V
IOUT = 2.0A
–20
–40
–60
–80
–100
100 200 400 1K 2K 4K 10K 20K 40K 100K
FREQUENCY, f (Hz)
Rev. A 3/01
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