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LM2825N-5.0 데이터시트(PDF) 1 Page - Texas Instruments |
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LM2825N-5.0 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 21 page LM2825 www.ti.com SNVS127C – MAY 1997 – REVISED APRIL 2013 LM2825 Integrated Power Supply 1A DC-DC Converter Check for Samples: LM2825 1 FEATURES DESCRIPTION The LM2825 is a complete 1A DC-DC Buck converter • Minimum Design Time Required packaged in a 24-lead molded Dual-In-Line integrated • 3.3V, 5V and 12V Fixed Output Versions circuit package. • Two Adjustable Versions Allow 1.23V to 15V Contained within the package are all the active and Outputs passive components for a high efficiency step-down • Wide Input Voltage Range, up to 40V (buck) switching regulator. Available in fixed output voltages of 3.3V, 5V and 12V, as well as two • Low-Power Standby Mode, IQ Typically 65 μA adjustable versions, these devices can provide up to • High Efficiency, Typically 80% 1A of load current with fully ensured electrical • ±4% Output Voltage Tolerance specifications. • Excellent Line and Load Regulation Self-contained, this converter is also fully protected • TTL Shutdown Capability/Programmable Soft- from output fault conditions, such as excessive load Start current, short circuits, or excessive temperatures. • Thermal Shutdown and Current Limit Protection • −40°C to +85°C Ambient Temperature Range APPLICATIONS • Simple High-Efficiency Step-Down (Buck) Regulator • On-Card Switching Regulators • Efficient Pre-Regulator for Linear Regulators Standard Application • Distributed Power Systems (Fixed output voltage versions) • DC/DC Module Replacement HIGHLIGHTS • No External Components Required (Fixed Output Voltage Versions) • Integrated Circuit Reliability • MTBF Over 20 Million Hours • Radiated EMI Meets Class B Stipulated by Radiated EMI CISPR 22 Radiated emission of electromagnetic fields is • High Power Density, 35 W/in3 measured at 10m distance. The emission levels are within the Class B limits stipulated by CISPR 22. • 24-pin PDIP Package Profile (1.25 x 0.54 x 0.26 Inches) 30. . . .230 MHz 30 dB μV/m 230. . . .1000 MHz 37 dB μV/m 1. . . .10 GHz 46 dB μV/m 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. PRODUCTION DATA information is current as of publication date. Copyright © 1997–2013, 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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