The LM2766 is a CMOS charge-pump voltage converter that doubles the input voltage in the range of +1.8V to +5.5V. This circuit uses two low-cost capacitors and a diode to provide up to 20mA of output current. The LM2766 operates at a switching frequency of 200kHz to reduce output resistance and voltage ripple. With an operating current of only 350µA (operating efficiency greater than 90% with most loads) and 0.1µA typical shutdown current, the LM2766 provides ideal performance for battery-powered systems. The device is manufactured in a SOT-23-6 package.
The LM2766 is a GMOS charge-pump voltage converter designed to operate as a voltage doubler. It accepts an input voltage ranging from +1.8V to +5.5V and utilizes two low-cost capacitors and a diode to provide up to 20 mA of output current.
| Supply Voltage Range | 1.8V to 5.5V |
|---|---|
| Operating Efficiency | >90% |
| Shutdown Current | 0.1 uA |
| Package Type | SOT-23-6 |
The SD pin is used to disable the device and reduce quiescent current to 0.1 uA by applying a voltage less than 20% of V+.
Low ESR capacitors are recommended to maximize efficiency and reduce output resistance.