MAX1683EUKT Datasheet, PDF (4/9 Pages) Maxim Integrated Products – Switched-Capacitor Voltage Doublers

Switched-Capacitor Voltage Doublers
Typical Operating Characteristics (continued)
(Typical Operating Circuit, V_IN = +5V, C1 = C2 = 10µF for the MAX1682 and 3.3µF for the MAX1683, T_A = +25°C, unless otherwise
noted.)
MAX1682 OSCILLATOR FREQUENCY
vs. TEMPERATURE
12.5
V_IN = 5V
12.0
V_IN = 3.3V
11.5
V_IN = 2V
11.0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
MAX1683 OUTPUT VOLTAGE
vs. OUTPUT CURRENT
10
9
8
V_IN = 5V
7
6
V_IN = 3.3V
5
4
V_IN = 2V
3
2
1
0
0
5 10 15 20 25 30 35 40 45 50
OUTPUT CURRENT (mA)
MAX1682
OUTPUT RIPPLE
MAX1683 OSCILLATOR FREQUENCY
vs. TEMPERATURE
40
38
V_IN = 5V
36
34
32
V_IN = 3.3V
V_IN = 2V
30
28
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
100
98
96
94
92
90
88
86
84
82
80
0
MAX1682 EFFICIENCY vs.
LOAD CURRENT
V_IN = 5V
V_IN = 2V
V_IN = 3.3V
5 10 15 20 25 30
LOAD CURRENT (mA)
MAX1683
OUTPUT RIPPLE
MAX1682 OUTPUT VOLTAGE
vs. OUTPUT CURRENT
10
9
8
V_IN = 5V
7
V_IN = 3.3V
6
5
4
V_IN = 2V
3
2
1
0
0
5 10 15 20 25 30 35 40 45 50
OUTPUT CURRENT (mA)
100
98
96
94
92
90
88
86
84
82
80
0
MAX1683 EFFICIENCY vs.
LOAD CURRENT
V_IN = 5V
V_IN = 2V
V_IN = 3.3V
5 10 15 20 25 30
LOAD CURRENT (mA)
START-UP VOLTAGE
vs. RESISTIVE LOAD
2.5
MAX1683
2.0
V_OUT
20mV/div
V_OUT
20mV/div
1.5
MAX1682
1.0
0.5
20μs/div
I_LOAD = 5mA, V_IN = 5V, C1 = C2 = 10μF
20μs/div
I_LOAD = 5mA, V_IN = 5V, C1 = 3.3μF, C2 = 10μF
0
700 300 100 70 30 10 7 3 1 0.7 0.3
R_LOAD (kΩ)
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