MAX1681ESA+ Maxim Integrated Products, MAX1681ESA+ Datasheet - Page 5

• Manufacturer Part Number: MAX1681ESA+
• Description: IC SW-CAP VOLT CONV 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Switched Capacitor (Charge Pump), Doubler, Invertingr

Specifications of MAX1681ESA+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -2 ~ -5.5 V, 4 ~ 11 V
• Current - Output: 125mA
• Frequency - Switching: 500kHz, 1MHz
• Voltage - Input: 2 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Function: Inverting/Step Up
• Output Voltage: - 3 V to - 5.5 V or 8 V to 11 V
• Output Current: 125 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Switching Frequency: 1 MHz
• Input / Supply Voltage (max): 5.5 V
• Input / Supply Voltage (min): 2 V
• Efficiency: 90 %
• Maximum Power Dissipation: 471 mW
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current: 20 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(All curves generated using the inverter configuration shown in the Typical Operating Circuit s with LV = GND, FSEL = IN or LV,
C1 = C2 = 10µF (MAX1680), C1 = C2 = 2.2µF (MAX1681), and T
the doubler configuration with LV = OUT and T
____________________________Typical Operating Characteristics (continued)
100
80
60
40
20
0
LOAD CURRENT (DOUBLER CONFIGURATION)
1
MAX1681 EFFICIENCY vs.
10
10
V
9
8
7
6
5
4
3
9
8
7
6
5
4
3
INPUT
MAX1680 OUTPUT SOURCE RESISTANCE vs.
LOAD CURRENT (mA)
MAX1681 OUTPUT SOURCE RESISTANCE vs.
CAPACITANCE (INVERTER CONFIGURATION)
CAPACITANCE (INVERTER CONFIGURATION)
10
0
0
V
INPUT
= 5.5V
_______________________________________________________________________________________
Switched-Capacitor Voltage Converters
2
2
V
INPUT
= 4V
V
V
4
4
INPUT
INPUT
= 3V
100
6
6
V
CAPACITANCE ( F)
CAPACITANCE ( F)
= 3V, FSEL = LV
= 5V, FSEL = LV
INPUT
V
8
8
INPUT
FSEL = IN
= 3V, FSEL = IN
10 12 14
10 12 14
V
V
V
V
= 5V, FSEL = IN
INPUT
INPUT
INPUT
INPUT
1000
= 3V, FSEL = LV
= 5V, FSEL = LV
= 5V, FSEL = IN
= 3V, FSEL = IN
16
16
A
125mA, Frequency-Selectable,
18
18
= +25°C.)
9
8
7
6
5
4
3
2
1
0
20
20
2.0
MAX1680 SUPPLY CURRENT vs.
2.5
INVERTER MODE
FSEL = LV
3.0
SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
3.5
A
= +25°C, unless otherwise noted. Test results are also valid for
4.0
INVERTER MODE
FSEL = IN
DOUBLER MODE
FSEL = LV
DOUBLER MODE
FSEL = IN
4.5
5.0
5.5
10
10
9
8
7
6
5
4
3
9
8
7
6
5
4
3
MAX1680 OUTPUT SOURCE RESISTANCE vs.
MAX1681 OUTPUT SOURCE RESISTANCE vs.
CAPACITANCE (DOUBLER CONFIGURATION)
CAPACITANCE (DOUBLER CONFIGURATION)
6.0
0
0
2
2
V
INPUT
4
4
30
25
20
15
10
5
0
V
INPUT
= 3V, FSEL = LV
6
CAPACITANCE ( F)
6
CAPACITANCE ( F)
2.5
V
INPUT
8
8
= 5V, FSEL = LV
MAX1681 SUPPLY CURRENT vs.
V
INVERTER MODE
FSEL = LV
3.0
10 12 14
10 12 14
INPUT
V
V
V
V
= 5V, FSEL = IN
INPUT
INPUT
INPUT
INPUT
= 3V, FSEL = IN
3.5
SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
= 3V, FSEL = LV
= 5V, FSEL = IN
= 3V, FSEL = IN
= 5V, FSEL = LV
4.0
16
16
DOUBLER MODE
FSEL = LV
INVERTER MODE
FSEL = IN
18
18
4.5
DOUBLER MODE
FSEL = IN
20
20
5.0
5.5
6.0
5