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XCM517BA06DR Datasheet(PDF) 1 Page - Torex Semiconductor |
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XCM517BA06DR Datasheet(HTML) 1 Page - Torex Semiconductor |
1 / 28 page 1/28 XCM517 Series 600mA Synchronous Dual Output Step-Down DC/DC Converters 1 2 3 4 5 6 12 11 10 9 8 7 Lx PGND VIN CE AGND VOUT XC9235/XC9236 Lx VIN CE VOUT XC9235/XC9236 ■GENERAL DESCRIPTION The XCM517 series is a multi combination module IC which comprises of two 600mA driver transistor built-in synchronous step–down DC/DC converter. The XCM517 series is available in an ultra small package USP-12B01 suited for space conscious applications. The XCM517 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.42ΩP-channel driver transistor and 0.52ΩN-channel switching transistor, designed to allow the use of ceramic capacitors. The ICs enable a high efficiency, stable power supply with an output current of 600mA to be configured using only a coil and two capacitors connected externally. Operating voltage range is from 2.7V to 6.0V. With the built-in oscillator, either 1.2MHz or 3.0MHz can be selected for suiting to your particular application. As for operation mode, the XCM517xA / XCM517xB series are PWM control, the XCM517xC / XCM517xD series are automatic PWM/PFM switching control, allowing fast response, low ripple and high efficiency over the full range of loads (from light load to heavy load). The soft start and current control functions are internally optimized. During stand-by, all circuits are 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 P-channel driver transistor is forced OFF when input voltage becomes 1.4V or lower. ■APPLICATIONS ●Mobile phones, Smart phones ●Bluetooth equipment ●Personal Device Assistances ●Portable games ●Digital still cameras, camcorders ■FEATURES P-ch Driver Transistor Built-In : ON resistance 0.42Ω N-ch Driver Transistor Built-In Input Voltage Range : ON resistance 0.52Ω : 2.7V ~ 6.0V High Efficiency : 92% (TYP.) Output Current : 600mA Oscillation Frequency : 1.2MHz, 3.0MHz (+15%) Maximum Duty Cycle Soft-Start Circuit Built-In : 100% Current Limiter Circuit Built-In (Constant Current & Latching) Ceramic Capacitor Compatible Control Methods : PWM (XCM517xA / XCM517xB) PWM/PFM Auto (XCM517xC / XCM517xD) *Performance depends on external components and wiring on the PCB. Combination of voltage 1 ch 2ch XCM517xx01D 1.2V 1.8V XCM517xx02D 1.2V 3.3V XCM517xx03D 1.8V 3.3V XCM517xx06D 1.5V 1.8V XCM517xx07D 1.5V 3.3V *The other combination of voltage is semi-custom. ■TYPICAL APPLICATION CIRCUIT ETR2425-007 * The dotted lines in the circuit indicates the connection using through-holes at the backside of the PC board (TOP VIEW) VOUT1 AGND1 EN1 VIN2 Lx1 PGND1 VIN1 EN2 AGND2 VOUT2 Lx2 PGND2 |
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