MAX15053_11 Datasheet, PDF (4/21 Pages) Maxim Integrated Products – High-Efficiency, 2A, Current-Mode Synchronous, Step-Down Switching Regulator

High-Efficiency, 2A, Current-Mode
Synchronous, Step-Down Switching Regulator
Typical Operating Characteristics
(VIN = 5V, VOUT = 1.8V, ILOAD = 2A, Circuit of Figure 5, TA = +25NC, unless otherwise noted.)
EFFICIENCY vs. OUTPUT CURRENT
(PWM MODE)
100
95
90
85
80
V_OUT = 3.3V V_OUT = 1.8V V_OUT = 1.2V
75
70
VOUT = 2.5V VOUT = 1.5V
65
60
55
50
0
VIN = 5V
400 800 1200 1600 2000 2400
OUTPUT CURRENT (mA)
EFFICIENCY vs. OUTPUT CURRENT
(PWM MODE)
100
95
90
85
80
V_OUT = 2.5V V_OUT = 1.8V V_OUT = 1.2V
75
VOUT = 1.5V
70
65
60
55
VIN = 3.3V
50
0
400 800 1200 1600 2000 2400
OUTPUT CURRENT (mA)
EFFICIENCY vs. OUTPUT CURRENT
(SKIP MODE)
100
VOUT = 3.3V
95
90
85
80
VOUT = 2.5V
VOUT = 1.5V
75
VOUT = 1.8V
VOUT = 1.2V
70
65
60
55
V_IN = 5V
50
OUTPUT CURRENT (mA)
EFFICIENCY vs. OUTPUT CURRENT
(SKIP MODE)
100
95
90
85
VOUT = 2.5V
VOUT = 1.5V
80
VOUT = 1.8V
VOUT = 1.2V
75
70
65
60
55 V_IN = 3.3V
50
OUTPUT CURRENT (mA)
1100
1080
1060
1040
1020
1000
980
960
940
920
900
2.7
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
3.2 3.7 4.2 4.7 5.2
INPUT VOLTAGE (V)
OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
1.89
1.87
1.85
1.83
1.81
1.79
1.77
IOUT = 0.5A
1.75
2.7 3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
1.89
1.87
1.85
1.83
1.81
1.79
1.77
1.75
0
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
VOUT = 3.3V
VOUT = 5V
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
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