XA2320B
XA2320B is Regulated Charge Pump DC/DC Converter manufactured by XINNA SEMI.
Features
Fixed 3.3V ± 4% Output VIN Range: 1.8V to 5V Output Current: Up to 150m A Constant Frequency Operation at All Loads Low Noise Constant Frequency (1.2MHz) Operation Automatic Soft-Start Reduces Inrush Current
Shutdown Current <1µA
Short-Circuit Protection No Inductors Available in Low Profile 6-Lead SOT23 Package
Application
2 AA Cell to 3.3V USB On-The-Go Devices White LED Drivers Handheld Devices
Description
The XA2320B is a low noise, constant frequency (1.2MHz) switched capacitor voltage doubler. It produce a regulated output voltage from a 1.8V to 5V input with up to 150m A of output current. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the XA2320B ideally suited for small, battery-powered applications.
A new charge-pump architecture maintains constant switching frequency to zero load and reduces both output and input ripple. The XA2320B have thermal...