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Low Noise Regulated Charge Pump in SOT23-6 HX4002
Features
Fixed 3.3V or 5V Outputs VIN Range: 1.8V to 4.5V(HX4002-3.3)
2.7V to 5.5V(HX4002-5) Output Current: Up to 200mA (HX4002-5)
Up to 50mA (HX4002-3.3) Constant Frequency Operation at All Loads Low Noise Constant Frequency (1.2MHz) Operation Shutdown Disconnects Load from Input
Shutdown Current <1µA
Short-Circuit/Thermal Protection Available in Low Profile 6-Lead sot23 Package
Application
2 AA Cell to 3.3V Li-Ion to 5V USB On-The-Go Devices White LED Drivers Handheld Devices
Description
The HX4002 is a low noise, constant frequency (1.2MHz) switched capacitor voltage doublers. The HX3200-3.3can produce a regulated output voltage of 3.3Vfrom a minimum input voltage of 1.