DHD2805SE 查看數據表（PDF） - M.S. Kennedy
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DHD2805SE Datasheet PDF : 7 Pages
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TYPICAL PERFORMANCE CURVES
EFFICIENCY CONTOURS
50
30%
40%
TEMP = 25°C
40
50%
55%
60%
30
65%
68%
70%
20
71%
72%
11
.12 .24 .48 .78 .96 1.2
OUTPUT CURRENT, IOUT (A)
LOW LINE DROP OUT
16
TEMP = 25°C
14
EFFICIENCY CONTOURS
50
30%
TEMP = –55°C
40%
40
50%
55%
30
60%
63%
66%
20
68%
69% 70%
11
.12 .24 .48 .78 .96 1.2
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE
VOUT
EFFICIENCY CONTOURS
50
30%
40%
40
50%
55%
TEMP =
125°C
60%
63%
30
66%
20
68%
69%
11
.12 .24
70%
.48 .78 .96 1.2
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE 100µF
VOUT
12
10
0.0 0.45 10..08 11..52 21.06
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE 1000µF
VOUT
1.2A
IOUT
600mA
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)
1.2A
IOUT
600mA
NO OUTPUT BUS CAPCITANCE
TIME, t (100µsec/DIV)
LINE TRANSIENT RESPONSE
VOUT
LOAD = 1.2A
40V
16V
VIN
INCLUDES 100µF ON OUTPUT BUS
TIME, t (200µsec/DIV)
TURN ON RESPONSE
LOAD = 1.2A
5.0V
VOUT
0V
28V
0V VIN
INCLUDES 100µF ON OUTPUT BUS
TIME, t (5msec/DIV)
6
1.2A
IOUT
600mA
INCLUDES 100µF ON OUTPUT BUS
TIME, t (200µsec/DIV)
LINE TRANSIENT RESPONSE
INCLUDES 100µF ON OUTPUT BUS
VOUT
80V
LOAD = 1.2A
VIN
11V
TIME, t (200µsec/DIV)
AUDIO REJECTION
0
VIN = 28V
IOUT = 1.2A
–20
–40
–60
–80
–100
100 200 400 1K 2K
10K 20K 100K
FREQUENCY, f (Hz)
Rev. C 3/05
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