MAX5096_07 Datasheet, PDF (6/20 Pages) Maxim Integrated Products – 40V, 600mA Buck Converters with Low-Quiescent-Current Linear Regulator Mode

40V, 600mA Buck Converters with Low-
Quiescent-Current Linear Regulator Mode
Typical Operating Characteristics
(V_IN = +14V, V_EN = +2.4V, MAX5097AATE+, Figures 2 and 4, T_A = +25°C, unless otherwise specified.)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
(LDO MODE)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1
I_OUT = 50mA
10
100
INPUT VOLTAGE (V)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
(BUCK MODE)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1
I_OUT = 600mA
10
100
INPUT VOLTAGE (V)
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE (LDO MODE)
80
V_IN = 14V
70 VOUT = 3.3V
60
I_OUT = 100mA
50
40
I_OUT = 0
I_OUT = 100µA
30
20
10
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE (BUCK MODE)
710
V_IN = 14V
700
V_OUT = 3.3V
690
680
670
660
650
640
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OUTPUT VOLTAGE
vs. TEMPERATURE (BUCK MODE)
3.38
V_OUT = 3.3V
3.36
3.34
I_OUT = 100µA
3.32
3.30
I_OUT = 100mA ^{IOUT = 600mA}
3.28
3.26
3.24
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SHUTDOWN CURRENT
vs. TEMPERATURE
14
V_EN = 0V
12 ^{VIN = 14V}
10
8
6
4
2
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
DROPOUT VOLTAGE
vs. OUTPUT CURRENT (LDO MODE)
0.18
V_OUT = 5V
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0
20
40
60
80 100
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE vs. TEMPERATURE
(LDO MODE)
3.5
V_OUT = 3.3V
3.4
I_OUT = 10mA
I_OUT = 100µA
3.3
3.2
I_OUT = 10mA
3.1
3.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
EFFICIENCY vs. LOAD CURRENT
(V_OUT = 3.3V)
100
90
f_SW = 330kHz
80
70
60
50
40
V_IN = 5V
V_IN = 24V
V_IN = 40V
30
V_IN = 14V
20
10
0
0.01
0.1
1
LOAD CURRENT (A)
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