INDUSTRY Electronic Components USB Power Bank Why Choose KEMET Applications KEMET Electronics Corporation is a leading global supplier of electronic components. We offer our customers the broadest selection of capacitor technologies in the industry, along with an expanding range of electromechanical devices, electromagnetic compatibility solutions and supercapacitors. Our vision is to be the preferred supplier of electronic component solutions for customers demanding the highest standards of quality, delivery and service. • • • • • Trends • • • • Faster charging Increasing power Slim design Customizability EMI/RFI suppression Portable electronics Telecommunications High ripple current applications Microprocessors Polymer Capacitors Overview Chargers utilized in today’s mobile devices have a well-defined output of approximately 5 V. The input, however, can run up to 20 V depending on the design. With mobile devices becoming increasingly power hungry, the need to maintain the rail voltage is critical, driving the need for higher bulk capacitance. Chargers built into slim ultrabooks and hubs require slim capacitors. KEMET’s T520 and T521 Polymer Series provide high capacitance at 5 V in a low profile. For designs with space to spare, X5R and X7R ceramic capacitors are additional options. 5 V Power Bank Circuit Conditions • • • • Increasing humidity Operating temperature of +40°C to +70°C Input/output voltage of < 20 V/4.25 – 5.25 V Increasing temperature 20 V 5V DC/DC Converter USB Capacitor Requirements • • • • Low profile Small footprint High capacitance High ripple current Embedded USB Circuit 5V 5 V Rail USB Feature Highlights For more information, samples and engineering kits, please visit us at www.kemet.com or call 1.877.myKEMET. SA0515 Low Profile High Capacitance Copyright © 2015 KEMET INDUSTRY Electronic Components USB Power Bank KEMET Products Product Family KEMET Series Voltage (VDC) Capacitance Form Factor X7R 6.3 – 250 10 pF – 47 µF Surface Mount T520, T521 Up to 63 Up to 330 µF Surface Mount T520, T521 Up to 63 Up to 330 µF Surface Mount T528 2 – 10 33 µF – 470 µF Facedown Surface Mount High Ripple/Low Inductance Multilayer Ceramic Low ESR Polymer Low ESR/ High Reliability Low ESR Polymer Low ESR/Inductance Polymer X7R T520, T521 Frequently Selected Part Numbers Application Voltage (VDC) Series Part Number Capacitance (µF) Voltage (VDC) ESR (mΩ) Ripple (Arms) Case Size 5 T520 T520M157M006ATE035 150 6.3 35 1.6 3528-15 5 T520 T520B227M006ATE025 220 6.3 25 2.3 3528-20 20 T521 T521B156M025ATE090 15 25 90 1.0 3528-20 Pb Lead-free SA0515 Copyright © 2015 KEMET