EXAR SP6669 Synchronous Step Down Converter
The EXAR SP6669 600mA sychronous step down converter provides low output voltage ripple, fixed frequency noise, a pulse skip mode for light load efficiency and an LDO mode 100% duty cycle. This EXAR device offers a 2.2V to 5.5V input voltage range and a 1.5MHz switching frequency and allows the use of small surface mount inductors and capacitors ideal for battery powered portable applications. The SP6669 internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. This EXAR device is available in a 5 pin SOT-23 package.