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XCL205C103AR-G Datasheet(PDF) 1 Page - Torex Semiconductor |
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XCL205C103AR-G Datasheet(HTML) 1 Page - Torex Semiconductor |
1 / 26 page 1/26 XCL205/XCL206/XCL207Series Inductor Built-in Step-Down “micro DC/DC” Converters 0 20 40 60 80 100 0.1 1 10 100 1000 Output Current:IOUT (mA) VIN= 5.5V 5.0V 4.2V VOUT=3.3V (PWM) XCL206/XCL207(PWM/PFM) XCL205/XCL207 ■ TYPICAL PERFORMANCE CHARACTERISTICS ☆ GreenOperation Compatible ■ APPLICATIONS ● Mobile phones, Smart phones ● Bluetooth Headsets ● WiMAX PDAs, MIDs, UMPCs ● Portable game consoles ● Digital cameras, Camcorders ● Electronic dictionaries ■ TYPICAL APPLICATION CIRCUIT ETR2801-008 ■ GENERAL DESCRIPTION The XCL205/XCL206/XCL207 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control IC in one tiny package (2.5mm×2.0mm, H=1.0mm). A stable power supply with an output current of 600mA is configured using only two capacitors connected externally. Operating voltage range is from 2.0V to 6.0V. Output voltage is internally set in a range from 0.8V to 4.0V in increments of 0.05V. The device is operated by 3.0MHz, and includes 0.42ΩP-channel driver transistor and 0.52ΩN-channel switching transistor. As for operation mode, the XCL205 series is PWM control, the XCL206 series is automatic PWM/PFM switching control and the XCL207 series can be manually switched between the PWM control mode and the automatic PWM/PFM switching control mode, allowing fast response, low ripple and high efficiency over the full range of loads (from light load to heavy load). During stand-by, the device is shutdown to reduce current consumption to as low as 1.0μA or less. With the built-in UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage becomes 1.4V or lower. XCL205B/XCL206B/XCL207B series provide short-time turn-on by the soft start function internally set in 0.25 ms (TYP). XCL205B(C) /XCL206 B(C) / XCL207B(C) integrate CL auto discharge function which enables the electric charge stored at the output capacitor CL to be discharged via the internal auto-discharge switch located between the LX and VSS pins. When the devices enter stand-by mode, output voltage quickly returns to the VSS level as a result of this function. VIN Vss CE/MODE LX Vss VOUT CL 10μF 4.7μF CIN L1 L2 600mA (TOP VIEW) * “L1 and LX”, and “L2 and VOUT” is connected by wiring. ■ FEATURES Ultra Small : 2.5mm×2.0mm, H=1.0mm Input Voltage : 2.0V ~ 6.0V Output Voltage : 0.8V ~ 4.0V (+2.0%) High Efficiency : 90% (VIN=4.2V, VOUT=3.3V) Output Current : 600mA Oscillation Frequency : 3.0MHz (+15%) Maximum Duty Cycle Capacitor CE Function Protection Circuits : 100% : Low ESR Ceramic : Active High Soft-Start Circuit Built-In CL High Speed Auto Discharge :Current Limiter Circuit Built-In (Constant Current & Latching) Control Methods : PWM (XCL205) PWM/PFM Auto (XCL206) PWM/PFM Manual (XCL207) * Performance depends on external components and wiring on the PCB. XCL205A333xx/XCL206A333xx/XCL207A333xx XCL205/206/207 Series |
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