MAX861ISA Maxim Integrated Products, MAX861ISA Datasheet - Page 4

• Manufacturer Part Number: MAX861ISA
• Description: IC VOLT CONV SW-CAP CHRGPMP8SOIC
• Manufacturer: Maxim Integrated Products
• Type: Switched Capacitor (Charge Pump), Doubler, Invertingr

Specifications of MAX861ISA

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -1.5 ~ -5.5 V, 3 ~ 11 V
• Current - Output: 50mA
• Frequency - Switching: 13kHz, 100kHz, 250kHz
• Voltage - Input: 1.5 ~ 5.5 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Output Voltage: - 1.5 V to - 5.5 V, 5 V to 11 V
• Output Current: 100 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1164637A

50mA, Frequency-Selectable,
Switched-Capacitor Voltage Converters
(All curves generated using the inverter circuit shown in the Typical Operating Circuits with LV = GND and T
wise noted. Test results also valid for doubler mode with LV = OUT and T
mended in Table 3, unless otherwise noted. The output resistance curves represent the resistance of the device itself, which is R
the equation for R
4
__________________________________________Typical Operating Characteristics
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
_______________________________________________________________________________________
32
28
24
20
16
12
500
400
300
200
100
0
8
4
0
0
-60
0
0
OUTPUT SOURCE RESISTANCE (R
SUPPLY VOLTAGE vs. LOAD CURRENT
FC = V
ALL FREQUENCIES
ALL FREQUENCIES
-40
INVERTER, LV = GND
OUTPUT VOLTAGE DROP FROM
MAX861 SUPPLY CURRENT
1
10
DD
-20
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
V
V
LOAD CURRENT (mA)
TEMPERATURE (°C)
DD
DD
OUT
0
TEMPERATURE
2
DOUBLER, LV = OUT
= +1.5V
= +5.5V
20
20
shown in the Capacitor Selection section.)
40
3
V
DD
V
DD
60 80
30
= +4.5V, +5.0V
V
DD
= +3V
4
V
V
V
= +2.5V
DD
DD
DD
100
= +3.5V
40
= +1.5V
= +5V
5
O
120
) vs.
140
50
6
100
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
-10
-12
-14
0
0
-2
-4
-6
-8
MAX860 OUTPUT CURRENT vs. CAPACITANCE
2
0
0.33
1.0
0.01
f
FC = OUT
LV = GND
INVERTER MODE
OSC
1.5 2.0
EFFICIENCY vs. LOAD CURRENT
V
OSCILLATOR FREQUENCY vs.
= 130kHz
IN
HIGH-FREQUENCY MODE
1
= +4.5V, V
0.1
SUPPLY VOLTAGE (V)
LOAD CURRENT (mA)
SUPPLY VOLTAGE
CAPACITANCE ( F)
ALL FREQUENCIES,
LV CONNECTED TO GND
(INVERTER) OR OUT (DOUBLER)
2.5
2.2
V
V
IN
MAX860
V
3.0
V
IN
OUT
DD
IN
= +3V, V
= +4.5V, V
1
= +1.5V
= +3V, V
3.5
V
= -4V
DD
4.7
A
V
= +3V
4.0
OUT
DD
= +25°C. All capacitor values used are those recom-
OUT
INVERTER
OUT
= +5V
FC = V
10
4.5 5.0 5.5
= -2.7V
10
= -2.4V
= -3.5V
DD
100
22
20
18
16
14
12
10
80
70
60
50
40
30
20
10
500
400
300
200
100
8
6
4
2
0
0
MAX860 OUTPUT CURRENT vs. CAPACITANCE
0
0.33
0
0
OUTPUT SOURCE RESISTANCE (R
f
FC = GND
LV = GND
INVERTER MODE
FC = V
OSC
= 50kHz
MEDIUM-FREQUENCY MODE
MAX860 SUPPLY CURRENT
1
1
DD
1
INVERTER, LV = GND
(V
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
DD
SUPPLY VOLTAGE
CAPACITANCE ( F)
A
2
> 3V)
2
= +25°C, unless other-
2.2
DOUBLER, LV = OUT
V
IN
V
V
V
IN
3
IN
IN
= +4.5V, V
ALL FREQUENCIES
3
= +4.5V, V
= +3V, V
= +3V, V
4.7
4
4
OUT
OUT
OUT
OUT
10
= -2.4V
5
= -3.5V
= -2.7V
O
= -4V
) vs.
5
O
22
6
in