MAX5037 MAXIM [Maxim Integrated Products], MAX5037 Datasheet - Page 6

• Manufacturer Part Number: MAX5037
• Description: VRM 9.0, Dual-Phase, Parallelable, Average Current-Mode Controller
• Manufacturer: MAXIM [Maxim Integrated Products]

VRM 9.0, Dual-Phase, Parallelable,
Average Current-Mode Controller
(Circuit of Figure 1, T
6
1.75
1.65
1.55
1.45
1.35
1.25
1.15
1.05
0.95
0.85
0.75
1.85
1.80
1.75
1.70
1.65
1.60
_______________________________________________________________________________________
55
54
53
52
51
50
49
48
47
46
45
4.75
1.0
OUTPUT VOLTAGE vs. OUTPUT CURRENT
0
UNDERVOLTAGE THRESHOLD (PGOOD)
PHASE 2
PHASE 1
4.80
5
AND ERROR AMP GAIN (R
1.1
CURRENT-SENSE THRESHOLD
4.85 4.90 4.95 5.00
10
R
vs. OUTPUT VOLTAGE
1.2
f
V
vs. INPUT VOLTAGE
/ R
15
OUT
V
R
OUT
IN
f
/ R
= 7.5
20
= +1.8V
1.3
= +1.1V
IN
A
V
= 15
I
LOAD
V
25
OUT
= +25°C, unless otherwise noted.)
IN
1.4
(V)
30
(V)
(A)
5.05 5.10
1.5
35
R
f
/ R
V
V
40
1.6
IN
IN
OUT
F
R
5.15
= 10
= +12V
f
/ R
/ R
45
= +1.8V
IN
1.7
IN
5.20
= 12.5
50
)
5.25
1.8
55
1.90
1.85
1.80
1.75
1.70
1.65
1.60
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Typical Operating Characteristics (continued)
0.01
4.75
0
DIFFERENTIAL AMPLIFIER BANDWIDTH
V
VID SETTING = +1.75V
R
PHASE
OVERVOLTAGE THRESHOLD (PGOOD)
GAIN
IN
4.80
CNTR
5
= +12V
R
CNTR
10
4.85 4.90 4.95 5.00
= 200kΩ
V
vs. I
OUT
15
= 50kΩ
vs. INPUT VOLTAGE
OUTPUT VOLTAGE
V
OUT
0.1
FREQUENCY (MHz)
= +1.8V
20
LOAD
= +1.1V
R
I
LOAD
CNTR
25
V
IN
AND R
(V)
30
(A)
= 100kΩ
R
5.05 5.10
CNTR
35
CNTR
1
= ∞
40
5.15
45
MAX5037 toc17
5.20
50
5.25
55
10
90
45
0
-45
-90
-135
-180
-225
-270
0.200
0.175
0.150
0.125
0.100
0.075
0.050
0.025
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
0
4.75
1.0
0
OVERVOLTAGE THRESHOLD (OVPOUT)
V
NO DRIVER
4.80
IN
5
1.1 1.2 1.3
vs. SENSE+ TO SENSE- VOLTAGE
R
= +12V
R
CNTR
4.85 4.90 4.95 5.00
10
CNTR
V
vs. I
= ∞
DIFF OUTPUT ERROR
vs. INPUT VOLTAGE
15
OUT
V
OUTPUT VOLTAGE
= 50kΩ
OUT
R
CNTR
20
= +1.8V
LOAD
= +1.1V
1.4
∆V
I
LOAD
V
R
25
= 200kΩ
SENSE
IN
CNTR
AND R
1.5 1.6
(V)
30
V
VID SETTING = +1.4V
(A)
IN
5.05 5.10
= 100kΩ
(V)
= +12V
35
CNTR
1.7
40
5.15
1.8
45
5.20
1.9
50
5.25
55
2.0