TYPICAL PERFORMANCE CURVES
BBF2805S
EFFICIENCY CONTOURS
EFFICIENCY CONTOURS
EFFICIENCY CONTOURS
40
35
30
25
40
35
40
35
30
30%
40%
50%
60%
63%
66%
68%
70%
71%
72%
40%
30%
50%
50%
55%
60%
TEMP =
125°C
60%
64%
67%
69%
70%
TEMP =
TEMP = 25°C
–55°C
64%
66%
68%
69%
70%
30
25
71%
25
72%
20
16
71%
20
16
20
15
73%
73%
2.4
67%
3.2 4
.4 .8
1.6
2.4
3.2
4
.8
1.6
2.4
3.2
4
.4 .8
1.6
OUTPUT CURRENT, IOUT (A)
LOW LINE DROP OUT
TEMP = 25°C
OUTPUT CURRENT, IOUT (A)
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE 100μF
20
18
16
14
VOUT
VOUT
4A
4A
2A
2A
IOUT
IOUT
12
10
NO OUTPUT BUS CAPCITANCE
TIME, t (100μsec/DIV)
INCLUDES 100μF ON OUTPUT BUS
TIME, t (200μsec/DIV)
0.0
1.0
2.0
3.0
4.0
5.0
OUTPUT CURRENT, IOUT (A)
LOAD TRANSIENT RESPONSE 1000μF
LINE TRANSIENT RESPONSE
LOAD 4A
VOUT
VOUT
40V
4A
2A
16V
IOUT
VIN
INCLUDES 1000μF ON OUTPUT BUS
TIME, t (500μsec/DIV)
INCLUDES 100μF ON OUTPUT BUS
TIME, t (200μsec/DIV)
TURN ON THRESHOLD
TURN ON RESPONSE
AUDIO REJECTION
0
28
VIN = 28VDC
5.1V
IOUT = 4 Amps
–20
24
20
VOUT
LOAD 4A
–40
–60
0V
28V
16
12
–80
0V V
IN
INCLUDES 100μF ON OUTPUT BUS
–100
10K
20K 30K 40K50K 70K 90K
100 200 400 1K 2K
10K 20K
100K
FREQUENCY, f (Hz)
SET POINT RESISTOR, RSP (Ω)
TIME, t (5msec/DIV)
10
8548-34 Rev. H 4/12
MSK [ M.S. KENNEDY CORPORATION ]
