lm2991qml National Semiconductor Corporation, lm2991qml Datasheet
lm2991qml
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lm2991qml Summary of contents
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... LM2991QML Negative Low Dropout Adjustable Regulator General Description The LM2991 is a low dropout adjustable negative regulator with a output voltage range between −2V to −25V. The LM2991 provides load current and features a On /Off pin for remote shutdown capability. The LM2991 uses new circuit design techniques to provide a low dropout voltage, low quiescent current and low tempera- ture coefficient precision reference ...
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Absolute Maximum Ratings Input Voltage Power Dissipation (Note 2) Junction Temperature (T ) Jmax Storage Temperature Range Thermal Resistance θ Ceramic DIP (Still Air 0.5˚C/W) Ceramic DIP (500LF/Min Air flow Ceramic SOIC (Still Air @ 0.5˚C/W) Ceramic SOIC ...
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LM2991 Electrical Characteristics DC Parameters The following conditions apply, unless otherwise specified. DC −10V −3V 1A Symbol Parameter V Reference Voltage Ref V Output Voltage Range O V Line Regulation ...
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LM2991 Electrical Characteristics DC Drift Parameters The following conditions apply, unless otherwise specified. DC −10V −3V 1A S−Level product ONLY. Symbol Parameter V Reference Voltage Ref Note 1: Absolute Maximum ...
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Typical Performance Characteristics Dropout Voltage Output Voltage Quiescent Current www.national.com Normalized Output Voltage 20158713 Output Noise Voltage 20158715 Maximum Output Current 20158717 6 20158714 20158716 20158718 ...
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Typical Performance Characteristics Line Transient Response Maximum Output Current Output Impedance (Continued) Load Transient Response 20158719 20158721 ON /OFF Control Voltage 20158723 7 20158720 Ripple Rejection 20158722 20158724 www.national.com ...
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Typical Performance Characteristics Adjust Pin Current 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 proper performance. INPUT CAPACITOR An input capacitor is required ...
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Application Hints (Continued) using resistors lower than 100 kΩ makes the adjust pin current negligible. For example, neglecting the adjust pin current, and setting R2 to 100 kΩ and V an output voltage error of only 0.16%. ON/OFF PIN The ...
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Typical Applications www.national.com (Continued) Adjustable Current Sink 10 20158710 ...
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Revision History Released Revision 03/10/06 A New Release, Corporate format Section Originator L. Lytle 11 Changes 1 MDS data sheet converted into one Corp. data sheet format. MNLM2991-X Rev 1A1 will be archived. www.national.com ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 16-Lead Ceramic Dual-in-Line Package NS Package Number J16A 16-Lead Ceramic Surface-Mount Package NS Package Number WG16A 12 ...
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. For the most current product information ...