Part Number
|
LM2681 |
Manufacturer
|
National Semiconductor |
Description
|
Switched Capacitor Voltage Converter |
Published
|
Mar 22, 2005 |
Detailed Description
|
LM2681 Switched Capacitor Voltage Converter
March 1999
LM2681 Switched Capacitor Voltage Converter
General Description...
|
Datasheet
|
LM2681
|
Overview
LM2681 Switched Capacitor Voltage Converter
March 1999
LM2681 Switched Capacitor Voltage Converter
General Description
The LM2681 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of +2.
5V to +5.
5V.
Two low cost capacitors and a diode (needed during start-up) is used in this circuit to provide up to 20 mA of output current.
The LM2681 can also work as a voltage divider to split a voltage in the range of +1.
8V to +11V in half.
The LM2681 operates at 160 kHz oscillator frequency to reduce output resistance and voltage ripple.
With an operating current of only 550 µA (operating efficiency greater than 90% with most loads) the LM2681 provides id...
Similar Datasheet