It can be used for generating 5V at 400mA from a 3.3V rail or a Li-ion battery CXSU63219 High switching frequency minimizes the sizes of inductor and capacitor

   产品概述 返回TOPfvA嘉泰姆

The CXSU63219 is a constant frequency, current mode, synchronous step-up switching regulator. It can be used for generating 5V at 400mA from a 3.3V rail or a Li-ion battery.fvA嘉泰姆

High switching frequency minimizes the sizes of inductor and capacitor. Integrated power MOSFETs and internal compensation make the CXSU63219 simple to use and fit the total solution into a compact space.fvA嘉泰姆

For light load current, the CXSU63219 enters into the power-save mode to maintain high efficiency. Anti-ringing control circuitry reduces EMI concerns by damping the inductor in discontinuous mode. The CXSU63219 provides true output disconnect and this allows V_OUT to go to zero volts during shutdown without drawing any current from the input source. The CXSU63219 supports1.8V logic for control.fvA嘉泰姆

The output voltage of CXSU63219-ADJ can be programmed by an external resistor divider, and that of CXSU63219-5.0 is fixed internally on the chip. The device is available in the Green SOT-23-6 package. It operated over an ambient temperature range of -40℃</span> to +85℃</span>.fvA嘉泰姆

   产品特点 返回TOPfvA嘉泰姆

• 90% Efficient Synchronous Boost Converter
• Device Quiescent Current: 30μA (TYP)
• Less than 1μA Shutdown Current
• Input Voltage Range: 2.7V to 5.5V
• 5.0V Fixed Output Voltage
• Output Voltage Clamping: 6V
• Adjustable Output Voltage Up to 5.5V
• Power-Save Mode for Improved Efficiency at Low
    Output Power
• Load Disconnect During Shutdown
• 1.8V Logic on EN Pin for Control
• Low Reverse Leakage Current when V_OUT > V_IN
• Over-Temperature Protection
• Available in Green SOT-23-6 Package
• -40℃</span> to +85℃</span> Operating Temperature RangefvA嘉泰姆

   应用范围 返回TOPfvA嘉泰姆

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