MAX660C Просмотр технического описания (PDF) - Maxim Integrated
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MAX660C Datasheet PDF : 12 Pages
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CMOS Monolithic Voltage Converter
_____________________________Typical Operating Characteristics (continued)
EFFICIENCY
vs. OSCILLATOR FREQUENCY
100
96
92
88
ILOAD = 1mA
84
80
76
ILOAD = 10mA
72
68
ILOAD = 80mA
64
60
0.1
1
10
100
OSCILLATOR FREQUENCY (kHz)
OSCILLATOR FREQUENCY
vs. EXTERNAL CAPACITANCE
100
OOSSCCILILLLAATTOORRFFRREQEUQEUNECNYCY
vvss..SSUUPPPPLLYYVVOOLTLATGAEGE
100
LLVV==GGNNDD
8800
LVLV= =OPOEPNEN
6600
4400
FFCC==VV++,,OOSSCC==OOPPENEN
20
20
OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
12
LV = GND
10
8
LV = OPEN
6
FC = OPEN, OSC = OPEN
4
2
0
0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
0
1.5
2.5
3.5
4.5
5.5
1.0 1.5 2.0SU2P.P5LY 3V.O0LTA3G.5E (V4).0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
OSCILLATOR FREQUENCY
OSCILLATOR FREQUENCY
vs. TEMPERATURE
vs. TEMPERATURE
100
12
10
1
0.1
0.01
1
FC = V+
FC = OPEN
10
100
1000
CAPACITANCE (pF)
10000
80
FC = V+, OSC = OPEN, RL = 100Ω
60
40
20
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
10
8
6
4
FC = OPEN, OSC = OPEN
2
RL = 100Ω
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
OUTPUT SOURCE RESISTANCE
vs. SUPPLY VOLTAGE
14
12
10
8
6
4
2
0
1.5 2.0
2.5 3.0 3.5 4.0 4.5
SUPPLY VOLTAGE (V)
5.0 5.5
OUTPUT SOURCE RESISTANCE
vs. TEMPERATURE
30
25
C1, C2 = 150µF ALUMINUM
ELECTROLYTIC
20
CAPACITORS
RL = 100Ω
15
V+ = 1.5V
10
V+ = 3.0V
5
V+ = 5.0V
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
OUTPUT SOURCE RESISTANCE
vs. TEMPERATURE
30
25
C1, C2 = 150µF OS-CON CAPACITORS
20
RL = 100Ω
15
V+ = 1.5V
10
V+ = 3.0V
5
V+ = 5.0V
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4 _______________________________________________________________________________________
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