517xE ALYW Boost Converters - Automotive 1.5 A 280 kHz/560 kHz NCV5171, NCV5173 www.onsemi.com The NCV5171/73 products are 280 kHz/560 kHz switching regulators with a high efficiency, 1.5 A integrated switch. The parts operate over a wide input voltage range, from 2.7 V to 30 V. The flexibility of the design allows the chip to operate in most power supply configurations, including boost, flyback, forward, inverting, SOIC8 D SUFFIX and SEPIC. The ICs utilize current mode architecture, which allows CASE 751 excellent load and line regulation, as well as a practical means for limiting current. Combining high frequency operation with a highly MARKING DIAGRAM AND integrated regulator circuit results in an extremely compact power PIN CONNECTIONS supply solution. The circuit design includes provisions for features such as frequency synchronization, shutdown, and feedback controls for positive voltage regulation. These parts are pintopin compatible 1 8 V V with LT1372/1373. C SW FB PGND Features Test AGND Integrated Power Switch: 1.5 A Guaranteed SS V CC Wide Input Range: 2.7 V to 30 V High Frequency Allows for Small Components 517xE = Specific Device Code Minimum External Components x = 1 or 3 A = Assembly Location Easy External Synchronization L = Wafer Lot Built in Overcurrent Protection Y = Year W = Work Week Frequency Foldback Reduces Component Stress During an = PbFree Package Overcurrent Condition Thermal Shutdown with Hysteresis ORDERING INFORMATION Shut Down Current: 50 A Maximum PintoPin Compatible with LT1372/1373 Device Package Shipping NCV Prefix for Automotive and Other Applications Requiring NCV5171EDR2G SOIC8 2500 Units / Box Unique Site and Control Change Requirements (PbFree) 40C to 125C NCV5173EDR2G SOIC8 2500 Units / Box (PbFree) These are PbFree Devices Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: October, 2019 Rev. 6 NCV5171/DNCV5171, NCV5173 R2 3.72 k D1 V OUT 1 8 V V 5 V SW C MBRS120T3 2 7 PGND FB C1 0.01 F 3 6 AGND Test L1 45 + C3 SS V SS CC 22 F 22 H 3.3 V R3 R1 + C2 5 k 1.28 k 22 F Figure 1. Applications Diagram MAXIMUM RATINGS Rating Value Unit Junction Temperature Range, T 40 to +150 C J Storage Temperature Range, T 65 to +150 C STORAGE Package Thermal Resistance C/W JunctiontoCase, R 45 JC JunctiontoAmbient, R 165 JA Lead Temperature Soldering: Reflow (Note 1) 260 Peak C (Note 1) ESD, Human Body Model 1.2 kV Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. 60180 seconds minimum above 237C. MAXIMUM RATINGS Pin Name Pin Symbol V V I I MAX MIN SOURCE SINK IC Power Input V 35 V 0.3 V N/A 200 mA CC Shutdown/Sync SS 30 V 0.3 V 1.0 mA 1.0 mA Loop Compensation V 6.0 V 0.3 V 10 mA 10 mA C Voltage Feedback Input FB 10 V 0.3 V 1.0 mA 1.0 mA Test Pin Test 6.0 V 0.3 V 1.0 mA 1.0 mA Power Ground PGND 0.3 V 0.3 V 4 A 10 mA Analog Ground AGND 0 V 0 V N/A 10 mA Switch Input V 40 V 0.3 V 10 mA 3.0 A SW www.onsemi.com 2 NCV5171/73