PFM Synchronous Step-Up Micro DC/DC with Integrated Inductor
Application Notes
The XCL101A501ER-G series is a synchronous step-up Micro DC/DC converter with integrated inductor which offers high levels of efficiency and superior performance for demanding battery powered applications.
Able to start operation from Input Voltages as low as 0.9V the XCL101A501ER-G is suitable for use with single alkaline or nickel metal hydride cells and up to 100mA of output current can be supplied with VIN=1.8V and VOUT=3.3V.
The output voltage is set internally between 1.8V~5.0V (±2%) in 0.1V increments and with a quiescent current of only 6.3µA (typ), reducing to 0.1µA (typ) during standby, the XCL101A501ER-G helps to further maximise battery life in portable applications.
The XCL101A501ER-G series also features a soft-start circuit, an enable pin to turn the IC on and off, and a load disconnect function that prevents the battery charge from leaking to the output while the IC is not operating (XCL101A). An Input by-pass mode function is also available to keep the connection between the input and output side during shutdown (XCL101C).
Features:
• Input Voltage: 0.9V ~ 5.5V• Output Voltage: 1.8V ~ 5.0V• Output Current: 100mA (VOUT=3.3V, VBAT=1.8V)• Low Supply Current: 6.3uA (VBAT=VOUT+0.5V)• Switching Frequency: 1.2MHz• Load Disconnect or Input Bypass Function Available• Packages : CL-2025, CL-2025-02
