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C3225X5R1E106K Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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C3225X5R1E106K Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 14 page  RT7272A ® DS7272A-01 January 2013 www.richtek.com 1 Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. © Ordering Information Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. 3A, 36V, 500kHz Synchronous Step-Down Converter General Description The RT7272A is a high efficiency, current mode synchronous step-down DC/DC converter that can deliver up to 3A output current over a wide input voltage range from 4.5V to 36V. The device integrates a 150m Ω high side and a 80m Ω low side MOSFET to achieve high conversion efficiency up to 95%. The current mode control architecture supports fast transient response and simple compensation circuit. A cycle-by-cycle current limit function provides protection against shorted output and an internal soft-start eliminates input current surge during start-up. The RT7272A provides complete protection functions such as input under voltage lockout, output under voltage protection, over current protection and thermal shutdown. The RT7272A is available in the thermal enhanced SOP-8 (Exposed Pad) package. Features 4.5V to 36V Input Voltage Range 3A Output Current Internal N-MOSFETs Current Mode Control Fixed Frequency Operation : 500kHz Adjustable Output Voltage from 0.8V to 30V High Efficiency Up to 95% Stable with Low ESR Ceramic Output Capacitors Cycle-by-Cycle Current Limit Input Under Voltage Lockout Output Under Voltage Protection Thermal Shutdown Protection Adjustable Current Limit RoHS Compliant and Halogen Free Applications Distributed Power Systems Pre-Regulator for Linear Regulators Notebook Computers Point of Load Regulator in Distributed Power System Digital Set-top Boxes Personal Digital Recorders Broadband Communications Flat Panel TVs and Monitors Vehicle Electronics Simplified Application Circuit Package Type SP : SOP-8 (Exposed Pad-Option 2) RT7272A Lead Plating System G : Green (Halogen Free and Pb Free) VIN GND BOOT FB SW L R1 R2 VOUT VIN RT7272A RLIM RL COMP CC R C CB CIN COUT |
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