Datenblatt-Suchmaschine für elektronische Bauteile |
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LM2596T-ADJ Datenblatt(PDF) 1 Page - Texas Instruments |
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LM2596T-ADJ Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 42 page LM2596 www.ti.com SNVS124C – NOVEMBER 1999 – REVISED APRIL 2013 LM2596 SIMPLE SWITCHER® Power Converter 150 kHz 3A Step-Down Voltage Regulator Check for Samples: LM2596 1 FEATURES DESCRIPTION The LM2596 series of regulators are monolithic 23 • 3.3V, 5V, 12V, and Adjustable Output Versions integrated circuits that provide all the active functions • Adjustable Version Output Voltage Range, for a step-down (buck) switching regulator, capable of 1.2V to 37V ±4% Max Over Line and Load driving a 3A load with excellent line and load Conditions regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output • Available in TO-220 and TO-263 Packages version. • Ensured 3A Output Load Current Requiring a minimum number of external • Input Voltage Range Up to 40V components, these regulators are simple to use and • Requires Only 4 External Components include internal frequency compensation , and a • Excellent Line and Load Regulation fixed-frequency oscillator. Specifications The LM2596 series operates at a switching frequency • 150 kHz Fixed Frequency Internal Oscillator of 150 kHz thus allowing smaller sized filter • TTL Shutdown Capability components than what would be needed with lower frequency switching regulators. Available in a • Low Power Standby Mode, IQ Typically 80 μA standard 5-lead TO-220 package with several • High Efficiency different lead bend options, and a 5-lead TO-263 • Uses Readily Available Standard Inductors surface mount package. • Thermal Shutdown and Current Limit A standard series of inductors are available from Protection several different manufacturers optimized for use with the LM2596 series. This feature greatly simplifies the APPLICATIONS design of switch-mode power supplies. • Simple High-Efficiency Step-Down (Buck) Other features include a ensured ±4% tolerance on Regulator output voltage under specified input voltage and output load conditions, and ±15% on the oscillator • On-Card Switching Regulators frequency. External shutdown is included, featuring • Positive to Negative Converter typically 80 μA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. (1) (1) † Patent Number 5,382,918. Typical Application (Fixed Output Voltage Versions) 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 SIMPLE SWITCHER is a registered trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 1999–2013, 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. |
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