MAX871 MAXIM [Maxim Integrated Products], MAX871 Datasheet - Page 3

• Manufacturer Part Number: MAX871
• Description: Switched-Capacitor Voltage Inverters
• Manufacturer: MAXIM [Maxim Integrated Products]

(Circuit of Figure 1, V
__________________________________________Typical Operating Characteristics
3.0
2.5
2.0
1.5
1.0
0.5
45
40
35
30
25
20
15
10
35
30
25
20
15
10
0
5
0
5
0
1.5
0
0
OUTPUT CURRENT vs. CAPACITANCE
OUTPUT CURRENT vs. CAPACITANCE
2.0
0.5
MAX871
V
0.5
IN
V
V
2.5
IN
vs. SUPPLY VOLTAGE
IN
= 4.75V, V
1.0
SUPPLY CURRENT
= 4.75V, V
SUPPLY VOLTAGE (V)
= 1.9V, V
CAPACITANCE ( F)
CAPACITANCE ( F)
3.0
V
V
IN
1.0
IN
_______________________________________________________________________________________
IN
V
MAX870
MAX871
1.5
IN
= 3.15V, V
= 1.9V, V
OUT
= +5V, C1 = C2 = C3, T
= 3.15V, V
OUT
3.5
OUT
= -4.0V
2.0
= -1.5V
= -4.0V
1.5
Switched-Capacitor Voltage Inverters
4.0
OUT
MAX870
OUT
OUT
= -1.5V
2.5
= -2.5V
4.5
= -2.5V
2.0
3.0
5.0
5.5
3.5
2.5
A
450
400
350
300
250
200
150
100
60
50
40
30
20
10
500
450
400
350
300
250
200
150
100
50
= +25°C, unless otherwise noted.)
0
50
0
1.5
0 0.5
0
2.0
OUTPUT VOLTAGE RIPPLE
1.0
OUTPUT VOLTAGE RIPPLE
0.5
V
vs. SUPPLY VOLTAGE
2.5
OUTPUT RESISTANCE
IN
1.5
SUPPLY VOLTAGE (V)
vs. CAPACITANCE
= 4.75V, V
vs. CAPACITANCE
V
CAPACITANCE ( F)
IN
CAPACITANCE ( F)
MAX870
3.0
= 3.15V, V
2.0 2.5 3.0
V
V
V
MAX870
1.0
IN
IN
IN
MAX871
= 4.75V, V
= 3.15V, V
= 1.9V, V
MAX871
3.5
OUT
V
IN
= -4.0V
OUT
= 1.9V, V
1.5
4.0
OUT
= -2.5V
OUT
OUT
3.5
4.5
= -1.5V
= -4.0V
= -2.5V
OUT
4.0
2.0
= -1.5V
5.0
4.5
5.5
5.0
2.5
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
-4.5
-5.0
50
45
40
35
30
25
20
15
10
70
60
50
40
30
20
10
0
0
5
0
-40
-40
OUTPUT RESISTANCE vs. TEMPERATURE
OUTPUT RESISTANCE vs. TEMPERATURE
0
V
5
IN
-15
-15
= 1.5V
V
V
V
V
10
V
IN
IN
IN
IN
vs. OUTPUT CURRENT
IN
= 2.0V
OUTPUT CURRENT (mA)
= 1.5V
= 3.3V
= 5.0V
OUTPUT VOLTAGE
= 5.0V
TEMPERATURE (°C)
TEMPERATURE (°C)
15
10
10
MAX871
MAX870
MAX870
20
V
IN
V
= 3.3V
IN
25
= 3.3V
35
35
V
30
IN
= 5.0V
35
60
60
40
85
45
85
3