LM2991SX National Semiconductor, LM2991SX Datasheet
LM2991SX
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LM2991SX Summary of contents
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... Locate the capacitor as close as possible to the regulator. The equivalent series resistance (ESR) is critical, and should be less than 10 over the same operating temperature range as the regulator. © 2000 National Semiconductor Corporation Features n Output voltage adjustable from −3V to −24V, typically − ...
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Connection Diagrams and Ordering Information 5-Lead TO-220 Straight Leads Front View Order Number LM2991T See NS Package Number T05A 16-Lead Ceramic Dual-in-Line Package Top View Order Number LM2991J-QMLV 5962-9650501VEA Order Number LM2991J-QML 5962-9650501QEA See NS Package Number J16A www.national.com DS011260-9 ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage ESD Susceptibility (Note 2) Power Dissipation (Note 3) Junction Temperature (T ) Jmax Electrical Characteristics V = −10V −3V 1A µ 2.7k the entire operating junction temperature range. ...
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Typical Performance Characteristics Dropout Voltage DS011260-13 Output Noise Voltage DS011260-16 Line Transient Response DS011260-19 Ripple Rejection DS011260-22 www.national.com Normalized Output Voltage DS011260-14 Quiescent Current DS011260-17 Load Transient Response DS011260-20 Output Impedance DS011260-23 4 Output Voltage DS011260-15 Maximum Output Current DS011260-18 ...
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Typical Performance Characteristics Adjust Pin Current DS011260-25 Maximum Power Dissipation (TO-263) (See Note 3) DS011260-28 Application Hints External Capacitors Like any low-dropout regulator, external capacitors are re- qired to stabilize the control loop. These capacitors must be correctly selected for ...
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Application Hints (Continued) Output Capacitor ESR Range MINIMUM LOAD A minimum load current of 500 µA is required for proper op- eration. The external resistor divider can provide the mini- mum load, with the resistor from the adjust pin to ...
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Typical Applications (Continued) Adjustable Current Sink 7 DS011260-10 www.national.com ...
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Equivalent Schematic www.national.com 8 ...
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Physical Dimensions inches (millimeters) unless otherwise noted 5-Lead T0-220, Straight Leads (T) Order Number LM2991T NS Package Number T05A 5-Lead T0-220, Bent, Staggered Leads (T) Order Number LM2991T Flow LBO3 NS Package Number T05D 9 www.national.com ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted (Continued) TO-263 5-Lead Plastic Surface Mount Package Ordering Number LM2991S NS Package Number TS5B 10 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Ceramic Dual-in-Line Package Order Number LM2991J-QMLV 5962-9650501VEA Order Number LM2991J-QML 5962-9650501QEA NS Package Number J16A 11 www.national.com ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...