MAX5038A 데이터 시트보기 (PDF) - Maxim Integrated
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MAX5038A Datasheet PDF : 26 Pages
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Dual-Phase, Parallelable, Average-Current-Mode
Controllers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, TA = +25°C, unless otherwise noted.)
CURRENT-SENSE THRESHOLD
vs. OUTPUT VOLTAGE
55
54
53
52
51
50
49 PHASE 2
48 PHASE 1
47
46
45
1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
VOUT (V)
DIFF OUTPUT ERROR
vs. SENSE+ TO SENSE- VOLTAGE
0.200
0.175
VIN = +12V
NO DRIVER
0.150
0.125
0.100
0.075
0.050
0.025
0
1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
∆VSENSE (V)
OUTPUT VOLTAGE vs. OUTPUT CURRENT
AND ERROR AMP GAIN (RF / RIN)
1.85
VIN = +12V
VOUT = +1.8V
1.80
RF / RIN = 15
RF / RIN = 12.5
1.75
1.70
RF / RIN = 7.5
1.65
RF / RIN = 10
1.60
0
5 10 15 20 25 30 35 40 45 50 55
ILOAD (A)
VCC LOAD REGULATION
vs. INPUT VOLTAGE
5.20
5.15
VIN = +24V
5.10
VIN = +12V
5.05
5.00
VIN = +8V
4.95
4.90
4.85
DC LOAD
4.80
0 15 30 45 60 75 90 105 120 135 150
ICC (mA)
DIFFERENTIAL AMPLIFIER BANDWIDTH
3.5
90 MAX5038A/41A toc12
3.0
45
PHASE
0
2.5
-45
2.0
-90
1.5
-135
GAIN
1.0
-180
0.5
-225
0
0.01
0.1
1
FREQUENCY (MHz)
-270
10
VCC LINE REGULATION
5.25
5.20
5.15
ICC = 0
5.10
5.05
ICC = 40mA
5.00
4.95
4.90
4.85
4.80
4.75
8
10 12 14 16 18 20 22 24 26 28
VIN (V)
VCC LINE REGULATION
5.25
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
ICC = 80mA
4.75
8
9
10 11 12 13
VIN (V)
120
110
100
90
80
70
60
50
40
30
20
10
0
1
DRIVER RISE TIME
vs. DRIVER LOAD CAPACITANCE
DL_
DH_
VIN = +12V
fSW = 250kHz
6 11 16 21 26 31 36
CDRIVER (nF)
120
110
100
90
80
70
60
50
40
30
20
10
0
1
DRIVER FALL TIME
vs. DRIVER LOAD CAPACITANCE
DL_
DH_
VIN = +12V
fSW = 250kHz
6 11 16 21 26 31 36
CDRIVER (nF)
6 _______________________________________________________________________________________
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