Switched Capacitor Voltage Converter
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 ?A (operating efficiency greater than 90% with most loads) the LM2681 provides ideal performance for battery powered systems. The device is in SOT-23-6 package.
By National Semiconductor Corporation
|LM2681M6/NOPB||Texas Instruments||Switched Capacitor Voltage Converter 6-SOT-23 -40 to 85|
|LM2681M6||Texas Instruments||SWITCHED CAPACITOR CONVERTER, 160kHz SWITCHING FREQ-MAX, PDSO6, SOT-23, 6 PIN|
|LM2681M6X||Texas Instruments||Switched Capacitor Voltage Converter 6-SOT-23 -40 to 85|
|LM2681M6X/NOPB||Texas Instruments||Switched Capacitor Voltage Converter 6-SOT-23 -40 to 85|
|LM2681 Pb-Free||LM2681 Cross Reference||LM2681 Schematic||LM2681 Distributor|
|LM2681 Application Notes||LM2681 RoHS||LM2681 Circuits||LM2681 footprint|