MAX15109 Datasheet, PDF (4/19 Pages) Maxim Integrated Products – High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator

High-Efficiency, 8A, Current-Mode Synchronous
Step-Down Switching Regulator with VID Control
Typical Operating Characteristics
(Circuit of Typical Application Circuit, TA = +25NC, unless otherwise noted.)
EFFICIENCY vs. OUTPUT CURRENT
(VIN = 5V)
100
VOUT = 0.9V
90
80
70
VOUT = 0.675V ^{VOUT = 0.725V}
60
VOUT = 0.8V
50
40
30
20
10
0
012345678
OUTPUT CURRENT (A)
EFFICIENCY vs. OUTPUT CURRENT
(VIN = 3.3V)
100
VOUT = 0.9V
90
80
70 _{VOUT = 0.675V} V_OUT = 0.725V
60
VOUT = 0.8V
50
40
30
20
10
0
012345678
OUTPUT CURRENT (A)
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
(VOUT = 0.9V)
0.915
0.910
0.905
0.900
4A LOAD
0.895
0.890
8A LOAD
0.885
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
(VOUT = 0.675V)
0.690
OUTPUT VOLTAGE vs. OUTPUT CURRENT
(VOUT = 0.9V)
0.915
0.685
0.910
0.680
0.675
4A LOAD
0.905
0.900
VIN = 5V
0.670
0.665
8A LOAD
0.895
0.890
VIN = 3.3V
0.660
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
0.885
012345678
OUTPUT CURRENT (A)
OUTPUT VOLTAGE vs. OUTPUT CURRENT
(VOUT = 0.675V)
0.690
OUTPUT VOLTAGE ERROR
vs. SUPPLY VOLTAGE
0
0.685
0.680
VIN = 5V
-0.10
VOUT = 0.675V
-0.20
0.675
-0.30
0.670
VIN = 3.3V
-0.40
0.665
0.660
012345678
OUTPUT CURRENT (A)
-0.50
VOUT = 0.9V
ILOAD = 8A
-0.60
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
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