Datenblatt-Suchmaschine für elektronische Bauteile |
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LM22679 Datenblatt(PDF) 1 Page - Texas Instruments |
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LM22679 Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 27 page LM22679-ADJ VIN SS SW BOOT FB GND VIN VOUT IADJ Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM22679, LM22679-Q1 SNVS581L – FEBRUARY 2013 – REVISED NOVEMBER 2014 LM22679/-Q1 42-V, 5-A SIMPLE SWITCHER® Step-Down Voltage Regulator With Features 1 Features 3 Description The LM22679 switching regulator provides all of the 1 • Wide Input Voltage Range: 4.5 V to 42 V functions necessary to implement an efficient high- • Internally Compensated Voltage Mode Control voltage step-down (buck) regulator using a minimum • Stable With Low ESR Ceramic Capacitors of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that • 100-m Ω N-Channel MOSFET can provide up to 5 A of load current. Excellent line • Output Voltage Options: and load regulation along with high efficiency (> 90%) -ADJ (Outputs as Low as 1.285 V) are featured. Voltage mode control offers short -5.0 (Output Fixed to 5 V) minimum on-time, allowing the widest ratio between • ±1.5% Feedback Reference Accuracy input and output voltages. Internal loop compensation means that the user is free from the tedious task of • Switching Frequency of 500 kHz calculating the loop compensation components. Fixed • –40°C to 125°C Operating Junction Temperature 5-V output and adjustable output voltage options are Range available. A switching frequency of 500 kHz allows for • Adjustable Soft-Start small external components and good transient response. An adjustable soft-start feature is provided • Adjustable Current Limit through the selection of a single external capacitor. In • Integrated Boot-Strap Diode addition, the switch-current limit can be programmed • Fully WEBENCH® Enabled with a single external resistor, allowing solution optimization. The LM22679 device also has built-in • LM22679-Q1 is AEC-Q100 Qualified and thermal shutdown and current limiting to protect Manufactured on an Automotive-Grade Flow against accidental overloads. • PFM (Exposed Pad) Package SIMPLE SWITCHER® family. The SIMPLE SWITCHER concept provides for an easy to use 2 Applications complete design using a minimum number of external • Industrial Control components and the TI WEBENCH design tool. TI's • Telecom and Datacom Systems WEBENCH tool includes features such as external component calculation, electrical simulation, thermal • Embedded Systems simulation, and Build-It boards for easy design-in. • Conversions from Standard 24-V, 12-V and 5-V Input Rails Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LM22679 TO-263 (7) 10.16 mm x 9.85 mm LM22679-Q1 (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Application Schematic 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Ähnliche Teilenummer - LM22679_15 |
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