SC220 x SC220Q 20MHz, 650mA, X-EMI -Enabled Synchronous Step-Down Regulator POWER MANAGEMENT Features Description TM ( ) Patented X-EMI Inductor Technology The SC220/Q is a 20MHz X-EMI -enabled step-down Enables Trace Inductors in PC Board Material regulator optimized for power low voltage rails from 2.7 Excellent EMI Performance to 5.5V input voltage. X-EMI inductor technology Efficiency up to 90% enables inductors to be drawn directly on the PC board. 9 A Quiescent Current under Very Light Loads This technology meets or exceeds the EMI performance Wide Input Voltage Range 2.7V to 5.5V of chip inductors and eliminates the need for discrete Adjustable Output Voltage Down to .0V inductors. Output DC Current up to 650mA High Light-load Efficiency via Automatic PSAVE Mode The SC220/Q uses a unique constant frequency, self- Ultra-fast Transient Response < s oscillating control loop architecture to provide excellent Temperature Range -40 to +85C transient performance. Under light loads, the device Shutdown Current 0. A (typical) operates in Power Save mode(PSAVE) maintaining a Requires Tiny 220nH Inductor typical quiescent current of 9A. At moderate to heavy Requires Only F of Output Capacitance loads, this part operates in PWM mode with a constant External Switching Frequency Synchronization switching frequency of 20MHz. This high switching fre- Protection Features Including quency oeff rs the advantages of using small and low cost Over-Current Protection external components like a F external capacitor and a TM Output Short-Circuit Protection small 220nH inductor (including X-EMI PCB trace Thermal Shutdown Protection inductors). Oerff ed in SOIC 8 Lead Package The device provides adjustable output voltages down to Lead-free, Halogen-free, and RoHS/WEEE Compliant .0V and an output current up to 650mA. An EN pin can AEC-Q 00 Qualified Version Available be used to synchronize to an external source and includes Applications de-glitching to reduce noise sensitivity. HDTV, Set Top Boxes, Gaming Consoles The SC220/Q is available in SOIC 8 lead package. POL Applications White Goods The SC220Q is an AEC-Q00 qualified version. Automotive AEC-Q 00 Qualified Applications TM Note : Purchase of SC220/Q includes royalty-free right to use X-EMI inductor technology with no addi- tional cost. Typical Application Circuit V O U T=1.8V V L, 220nH IN up to 650m A P V IN S W 2.7~5.5V A V IN V O U T C IN 1 F C O U T SC220 R 1 1 F SC220Q E N FB E nable P G N D R 2 A G N D Revision 2. 20 4 Semtech Corporation SC220 x SC220Q Pin Configuration Ordering Information Device Package ( )(2) SC220STRT SOIC 8 Lead S W 1 8 P G N D ( )(2)(3) SC220QSTRT SOIC 8 Lead SC220EVB Evaluation Board P V IN 2 7 A G N D SC220QEVB Evaluation Board 3 6 A V IN V O U T Notes: FB 4 5 E N () Available in tape and reel only. A reel contains 2,500 devices. (2) Device is lead-free, halogen-free, and RoHS/WEEE compliant. (3) Device is AEC-Q 00 qualified. SOIC 8 Lead, = 38 C/W JA Marking Information SC220 SC220Q yyww yyww xxxxx xxxxx nnnnn= P art N um ber nnnnnn= P art N um ber yyw w = D ate code yyw w = D ate code xxxxx = S em tech Lot N um ber xxxxx = S em tech Lot N um ber 22