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LM5009A датащи(PDF) 1 Page - Texas Instruments |
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LM5009A датащи(HTML) 1 Page - Texas Instruments |
1 / 24 page RT/SD FB VIN SW RTN BST 6V - 95V Input LM5009A SHUTDOWN RCL VCC VIN GND RCL RT C1 C3 C4 L1 D1 RFB2 RFB1 R3 C2 GND VOUT LM5009A www.ti.com SNVS608G – JUNE 2009 – REVISED FEBRUARY 2013 100-V 150-mA Constant On-Time Buck Switching Regulator Check for Samples: LM5009A 1 FEATURES DESCRIPTION The LM5009A is a functional variant of the LM5009 2 • Operating input voltage range: 6V to 95V COT Buck Switching Regulator. The functional • Integrated 100V, N-Channel buck switch differences of the LM5009A are: The minimum input • Internal start-up regulator operating voltage is 6 volts, the on-time equation is slightly different, and the requirement for a minimum • No loop compensation required load current is removed. • Ultra-Fast transient response The LM5009A Step Down Switching Regulator • On time varies inversely with input voltage features all of the functions needed to implement a • Operating frequency remains constant with low cost, efficient, Buck bias regulator. This high varying line voltage and load current voltage regulator contains an 100 V N-Channel Buck • Adjustable output voltage from 2.5V Switch. The device is easy to implement and is provided in the VSSOP-8 and the thermally enhanced • Highly efficient operation WSON-8 packages. The regulator is based on a • Precision internal reference control scheme using an ON time inversely • Low bias current proportional to VIN. This feature allows the operating frequency to remain relatively constant. The control • Intelligent current limit scheme requires no loop compensation. An intelligent • Thermal shutdown current limit is implemented with forced OFF time, • VSSOP-8 and WSON-8 (4mm x 4mm) packages which is inversely proportional to Vout. This scheme ensures short circuit control while providing minimum APPLICATIONS foldback. Other features include: Thermal Shutdown, VCC under-voltage lockout, Gate drive under-voltage • Non-Isolated Telecommunication Buck lockout, Max Duty Cycle limiter, and a pre-charge Regulator switch. • Secondary High Voltage Post Regulator • +42V Automotive Systems Typical Application, Basic Step-Down Regulator 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - LM5009A_15 |
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Аналогичное описание - LM5009A_15 |
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