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XC9515AA03ZL Datasheet(PDF) 1 Page - Torex Semiconductor |
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XC9515AA03ZL Datasheet(HTML) 1 Page - Torex Semiconductor |
1 / 21 page 1/21 XC9515 Series 2 channel Synchronous Step-Down DC/DC Converter with Manual Reset VIN=5V, fOSC=1MHz, L=4.7μH (CDRH4D28C) CIN=10μF (ceramic), CL=10μF (ceramic) VIN NC NC PVSS 1 NC PVSS 2 VOUT 1 VOUT 2 MR AVSS Cd VOUT1 CIN1 CL1 CIN2 MR VDOUT L1 L2 Cd VOUT2 EN2 EN1 CL2 RUP VIN=5V,FOSC=1MHz L=4.7uH(CDRH4D28C),CIN=10uF(ceramic),CL=10uF(ceramic) 0 10 20 30 40 50 60 70 80 90 100 1 10 100 1000 Output Current : IOUT [mA] VOUT=1.5V VOUT=3.3V VOUT=1.8V ETR0706-008 ■GENERAL DESCRIPTION The XC9515 series consists of 2 channel synchronous step-down DC/DC converters and a voltage detector with delay circuit built-in. The DC/DC converter block incorporates a P-channel 0.35Ω (TYP.) driver transistor and a synchronous N-channel 0.35Ω (TYP.) switching transistor. By minimizing ON resistance of the built-in transistors, the XC9515 series can deliver highly efficient and a stable output current up to 800mA. With high switching frequencies of 1MHz, a choice of small inductor is possible. The series has a built-in UVLO (under-voltage lock-out) function, therefore, the internal P-channel driver transistor is forced OFF when input voltage becomes 1.8V or lower (for XC9515A, 2.7V or lower). The voltage detector block can be set delay time freely by connecting an external capacitor. With the manual reset function, the series can output a reset signal at any time. ■APPLICATIONS ●DVDs ●Blu-ray Disk ●LCD TVs, LCD modules ●Multifunctional printers ●Photo printers ●Set top boxes ■FEATURES DC/DC Block Input Voltage Range : 2.5V∼5.5V Output Voltage : VOUT1=1.2V∼4.0V VOUT2=1.2V∼4.0V (Accuracy ±2%) Oscillation Frequency : 1MHz (Accuracy ±15%) High Efficiency : 95% (VIN=5V, VOUT=3.3V) Output Current : 800mA Control : PWM control Protection Circuits : Thermal Shutdown : Integral Latch (Over Current Limit) : Short Protection Circuit Ceramic Capacitor Compatible Voltage Detector (VD) Block Detect Voltage Range : 2.0∼5.5V(Accuracy ±2%) Delay Time : 173 ms (When Cd=0.1μF is connected) Output Configuration : N-channel open drain Package : QFN-20 ■TYPICAL APPLICATION CIRCUIT ■ TYPICAL PERFORMANCE CHARACTERISTICS ● Efficiency vs. Output Current |
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