MAX15021 Maxim Integrated Products, MAX15021 Datasheet - Page 4

• Manufacturer Part Number: MAX15021
• Description: Step-Down DC-DC Regulator
• Manufacturer: Maxim Integrated Products

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Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Tracking/Sequencing Capability
(V
otherwise noted.)
4
AVIN
100
100
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
100
100
= V
V
DVDD1
OUT2
V
PVIN1
CHANNEL 1 EFFICIENCY
CHANNEL 2 EFFICIENCY
= 1.0V
4.5
4.0
3.5
3.0
2.0
1.5
1.0
0.5
2.5
vs. LOAD CURRENT
vs. LOAD CURRENT
0
LOAD CURRENT (mA)
LOAD CURRENT (mA)
= 5V
= V
0
V
DVDD2
V
PVIN1
OUT2
5
SWITCHING FREQUENCY
1000
= 3.3V
= 1.5V
vs. RT RESISTANCE
10
RT RESISTANCE (kΩ)
= V
1000
V
f
EN2 = 0V
SW
V
OUT1
PVIN1
OUT2
V
f
EN1 = 0V
15
SW
= 2MHz
PVIN2
= 1.8V
= 2MHz
= 2.5V
= 5V
20
= V
5000
3000
PVIN2
25
30
= 5V, V
3.320
3.318
3.316
3.314
3.312
3.310
3.308
3.306
3.304
3.302
3.300
100
90
80
70
60
50
40
30
20
10
0
35
100
0
OUT1
V
OUT1
0.5
CHANNEL 1 EFFICIENCY
= 3.3V, V
= 3.3V
vs. LOAD CURRENT
LOAD REGULATION
LOAD CURRENT (mA)
1.0
LOAD CURRENT (A)
CHANNEL 1
V
OUT1
1.5
= 1.8V
OUT2
1000
Typical Operating Characteristics
2.0
V
= 1.5V, V
OUT1
V
f
EN2 = 0V
SW
PVIN1
V
f
SW
PVIN1
= 1.0V
= 2MHz
2.5
= 2MHz
= 5V
= 5V
PGND_
5000
-0.1
-0.2
-0.3
-0.4
-0.5
3.0
0.5
0.4
0.3
0.2
0.1
0
-40
-25
= 0V, R
1.5070
1.5065
1.5060
1.5055
1.5050
1.5045
1.5040
1.5035
1.5030
1.5025
1.5020
-10 5 20 35 50
100
SWITCHING FREQUENCY
90
80
70
60
50
40
30
20
10
0
vs. TEMPERATURE
100
0
T
TEMPERATURE (°C)
= 16.5kΩ. T
0.25
CHANNEL 2 EFFICIENCY
P
VIN2
V
V
PVIN2
vs. LOAD CURRENT
LOAD REGULATION
PVIN2
LOAD CURRENT (mA)
0.50
LOAD CURRENT (A)
= 5V
65 80
CHANNEL 2
= 3.3V
= 5V
A
P
VIN2
f
SW
0.75
= +25°C, unless
95
= 2MHz
= 3.3V
110
1.00
1000
125
V
f
EN1 = 0V
SW
OUT2
f
SW
= 2MHz
1.25
= 2MHz
= 1.5V
3000
1.50