MAX860 データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX860 Datasheet PDF : 11 Pages
| |||
MAX860/MAX861
50mA, Frequency-Selectable,
Switched-Capacitor Voltage Converters
__________________________________________Typical Operating Characteristics
(All curves generated using the inverter circuit shown in the Typical Operating Circuits with LV = GND and TA = +25°C, unless other-
wise noted. Test results also valid for doubler mode with LV = OUT and TA = +25°C. All capacitor values used are those recom-
mended in Table 3, unless otherwise noted. The output resistance curves represent the resistance of the device itself, which is RO in
the equation for ROUT shown in the Capacitor Selection section.)
OUTPUT VOLTAGE DROP FROM
SUPPLY VOLTAGE vs. LOAD CURRENT
0.8
ALL FREQUENCIES
0.7
VDD = +1.5V
0.6
VDD = +2.5V
0.5
0.4
0.3
0.2
0.1
0
0
VDD = +3.5V
VDD = +4.5V, +5.0V
VDD = +5.5V
10
20
30
40
50
LOAD CURRENT (mA)
OUTPUT SOURCE RESISTANCE (RO) vs.
TEMPERATURE
32
ALL FREQUENCIES
28
24
20
VDD = +1.5V
16
VDD = +3V
12
8
VDD = +5V
4
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
OSCILLATOR FREQUENCY vs.
SUPPLY VOLTAGE
2
0
-2
-4
-6
-8
-10
-12
ALL FREQUENCIES,
LV CONNECTED TO GND
-14
(INVERTER) OR OUT (DOUBLER)
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
MAX860
EFFICIENCY vs. LOAD CURRENT
100
90
80
70
VDD = +1.5V
60
VDD = +3V
50
VDD = +5V
40
30
20
10
0
0.01
INVERTER
FC = VDD
0.1
1
10
100
LOAD CURRENT (mA)
OUTPUT SOURCE RESISTANCE (RO) vs.
SUPPLY VOLTAGE
20
18
16
14
12
10
8
6
4
2
0
0
ALL FREQUENCIES
1
2
3
4
5
SUPPLY VOLTAGE (V)
MAX860 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
500
FC = VDD
400
DOUBLER, LV = OUT
300
INVERTER, LV = GND
200
(VDD > 3V)
100
0
01 23
4 56
SUPPLY VOLTAGE (V)
MAX861 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
500
FC = VDD
400
DOUBLER, LV = OUT
300
INVERTER, LV = GND
200
100
0
01
23
4 56
SUPPLY VOLTAGE (V)
MAX860 OUTPUT CURRENT vs. CAPACITANCE
HIGH-FREQUENCY MODE
70
fOSC = 130kHz
FC = OUT
60 LV = GND
INVERTER MODE
50
VIN = +4.5V, VOUT = -3.5V
VIN = +4.5V, VOUT = -4V
40
30
VIN = +3V, VOUT = -2.4V
20
10
VIN = +3V, VOUT = -2.7V
0
0.33 1
2.2
4.7 10
22
CAPACITANCE (μF)
MAX860 OUTPUT CURRENT vs. CAPACITANC
MEDIUM-FREQUENCY MODE
80
fOSC = 50kHz
70 FC = GND
LV = GND
60 INVERTER MODE
50
VIN = +4.5V, VOUT = -3.5V
40
30
20
10
0
0.33
VIN = +3V, VOUT = -2.4V
VIN = +4.5V, VOUT = -4V
VIN = +3V, VOUT = -2.7V
1
2.2
4.7 10
22
CAPACITANCE (μF)
4
Maxim Integrated
Share Link: 