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LM2940QML 데이터시트(PDF) 1 Page - Texas Instruments |
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LM2940QML 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 17 page LM2940QML, LM2940QML-SP www.ti.com SNVS389B – MAY 2010 – REVISED MAY 2013 LM2940QML 1A Low Dropout Regulator Check for Samples: LM2940QML, LM2940QML-SP 1 FEATURES DESCRIPTION The LM2940 positive voltage regulator features the 2 • Available with Radiation Ensure ability to source 1A of output current with a dropout – ELDRS Free 100 krad(Si) voltage of typically 0.5V and a maximum of 1V over • Dropout Voltage Typically 0.5V @IO = 1A the entire temperature range. Furthermore, a quiescent current reduction circuit has been included • Output Current in Excess of 1A which reduces the ground current when the • Output Voltage Trimmed Before Assembly differential between the input voltage and the output • Reverse Battery Protection voltage exceeds approximately 3V. The quiescent current with 1A of output current and an input-output • Internal Short Circuit Current Limit differential of 5V is therefore only 30 mA. Higher • Mirror Image Insertion Protection quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3V). Designed also for vehicular applications, the LM2940 and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940 cannot be harmed by temporary mirror- image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided. CONNECTION DIAGRAMS Figure 1. 16-Lead Ceramic Surface-Mount Package (CFP) Top View 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 © 2010–2013, 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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