PFM Synchronous Step-Up DC/DC Converter
The XC9140A331MR-G series is a new synchronous step-up DC/DC converter integrating a 0.6Ω N-ch driver transistor and a 0.65Ω synchronous P-ch switching transistor and offering 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 XC9140A331MR-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 XC9140A331MR-G helps to further maximise battery life in portable applications. The XC9140A331MR-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 (XC9140A). An Input by-pass mode function is also available to keep the connection between the input and output side during shutdown (XC9140C).
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 : SOT-25, USP-6EL
Need more Integration
For additional space saving take a look at the XCL101 Micro DC/DC with integrated inductor! The XCL101 is available in an ultra small CL-2025 package measuring only 2.5mm x 2.0mm x 1.0mm. Needs only two external capacitors!
