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5962-9650502QXA Datasheet(PDF) 1 Page - Texas Instruments |
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5962-9650502QXA Datasheet(HTML) 1 Page - Texas Instruments |
1 / 15 page LM2991QML www.ti.com SNVS392A – MARCH 2006 – REVISED OCTOBER 2011 LM2991QML Negative Low Dropout Adjustable Regulator Check for Samples: LM2991QML 1 FEATURES DESCRIPTION The LM2991 is a low dropout adjustable negative 2 • Output Voltage Adjustable From −2V to −25V regulator with a output voltage range between −2V to • Output Current in Excess of 1A −25V. The LM2991 provides up to 1A of load current • Dropout Voltage Typically 0.6V at 1A Load and features a On /Off pin for remote shutdown capability. • Low Quiescent Current • Internal Short Circuit Current Limit The LM2991 uses new circuit design techniques to provide a low dropout voltage, low quiescent current • Internal Thermal Shutdown with Hysteresis and low temperature coefficient precision reference. • TTL, CMOS Compatible ON/OFF Switch The dropout voltage at 1A load current is typically • Functional Complement to the LM2941 Series 0.6V and a ensured worst-case maximum of 1V over the entire operating temperature range. The quiescent current is typically 1 mA with a 1A load APPLICATIONS current and an input-output voltage differential greater • Post Switcher Regulator than 3V. A unique circuit design of the internal bias • Local, On-card, Regulation supply limits the quiescent current to only 9 mA (typical) when the regulator is in the dropout mode • Battery Operated Equipment (VO − VI ≤ 3V). The LM2991 is short-circuit proof, and thermal shutdown includes hysteresis to enhance the reliability of the device when inadvertently overloaded for extended periods. CONNECTION DIAGRAMS Package Number NAC0016A (Top View) 16-Lead CLGA Package 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 © 2006–2011, 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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