MAX1808EUB+ Maxim Integrated, MAX1808EUB+ Datasheet - Page 5

• Manufacturer Part Number: MAX1808EUB+
• Description: Current & Power Monitors & Regulators
• Manufacturer: Maxim Integrated

(V
Maxim Integrated
IN
5.265
5.260
5.255
5.250
5.245
5.240
5.235
5.230
5.225
2500
2000
1500
1000
100
500
90
80
70
60
50
40
30
20
10
= 12V, T
0
0
0
0
0
Low-Cost, Small, 4.5V to 28V Wide Operating
EFFICIENCY vs. LOAD CURRENT
Range, DC-DC Synchronous Buck Controller
2
A
20
20
SWITCHING FREQUENCY
V
V
= +25°C. The following TOCs are for MAX15026B/C/D, unless otherwise noted.) (See the circuit of Figure 5.)
OUT
CC
V
vs. RESISTANCE
LOAD CURRENT (mA)
LOAD CURRENT (A)
(MAX15026B/C)
OUT
= 1.8V
RESISTANCE (kΩ)
4
vs. LOAD CURRENT
V
V
OUT
40
40
OUT
= 5V
= 1.2V
= 3.3V
6
60
60
8
80
80
10
100
12
100
2500
2000
1500
1000
100
500
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
4.3
90
80
70
60
50
40
30
20
10
0
0
-40
0
0
5mA
EFFICIENCY vs. LOAD CURRENT
(V
2
5
-15
IN
SWITCHING FREQUENCY
V
= 12V, V
CC
vs. TEMPERATURE
50mA
LOAD CURRENT (A)
TEMPERATURE (°C)
10
4
V
LINE REGULATION
V
OUT
OUT
10
V
OUT
V
= 1.8V
IN
CC
= 3.3V
15
6
(V)
= 5V
= V
Typical Operating Characteristics
35
DRV
20
8
R
R
R
RT
RT
RT
V
= 5V)
OUT
R
= 7.2kΩ
= 15.7kΩ
= 27kΩ
RT
60
10
25
= 1.2V
= 85kΩ
12
30
85
5.248
5.246
5.244
5.242
5.240
5.238
5.236
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1.0
90
80
70
60
50
40
30
20
10
0
0
100
-40
0
vs. SWITCHING FREQUENCY
2
MAX15026
-15
V
SWITCHING FREQUENCY (kHz)
V
OUT
CC
SUPPLY CURRENT
LOAD CURRENT (A)
TEMPERATURE (°C)
4
vs. TEMPERATURE
vs. LOAD CURRENT
10
1000
6
35
8
60
10
10,000
12
85
5