LM2682MM National Semiconductor, LM2682MM Datasheet
LM2682MM
Manufacturer Part Number
LM2682MM
Description
DC/DC Charge Pump Converter IC
Manufacturer
National Semiconductor
Specifications of LM2682MM
Output Current
10mA
No. Of Pins
8
Switching Frequency Max
15kHz
Mounting Type
Surface Mount
Output Voltage Adjustable Min, Vout
-11V
Supply Voltage Min
2V
Output Current Max
10mA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2682MM
Manufacturer:
NS
Quantity:
5 321
Part Number:
LM2682MM
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
LM2682MMX
Manufacturer:
NS/国半
Quantity:
20 000
© 2004 National Semiconductor Corporation
LM2682
Switched Capacitor Voltage Doubling Inverter
General Description
The LM2682 is a CMOS charge-pump voltage inverter ca-
pable of converting positive voltage in the range of +2.0V to
+5.5V to the corresponding doubled negative voltage of
−4.0V to −11.0V respectively. The LM2682 uses three low
cost capacitors to provide 10 mA of output current without
the cost, size, and EMI related to inductor based circuits.
With an operating current of only 150 µA and an operating
efficiency greater than 90% with most loads, the LM2682
provides ideal performance for battery powered systems.
The LM2682 offers a switching frequency of 6 kHz.
Typical Operating Circuit and Pin Configuration
Ordering Information
Order Number
LM2682MMX
LM2682MM
LM2682MX
LM2682M
Package
MSOP-8
MSOP-8
SO-8
SO-8
DS100997
Package Number
10099701
MUA08A
MUA08A
M08A
M08A
Features
n Inverts then doubles input supply voltage
n Small MSOP-8 package (mini SO-8) and SO-8 package
n 90Ω typical output impedance
n 94% typical power efficiency at 10 mA
Applications
n LCD contrast biasing
n GaAs power amplifier biasing
n Interface power supplies
n Handheld instrumentation
n Laptop computers and PDAs
Package Marking
LM2682M
LM2682M
S11A
S11A
or 8-Pin SOIC
8-Pin MSOP
Tape and Reel (1000 units/reel)
Tape and Reel (3500 units/reel)
Rail (95 units/rail)
Tape and Reel (2500 units/reel)
Supplied As
10099702
November 1999
www.national.com
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