LP2953AIMX/NOPB National Semiconductor, LP2953AIMX/NOPB Datasheet

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... The parts are available in DIP and surface mount packages. Block Diagrams LP2952 © 2005 National Semiconductor Corporation Features n Output voltage adjusts from 1.23V to 29V n Guaranteed 250 mA output current n Extremely low quiescent current ...

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Pinout Drawings LP2952 14-Pin DIP LP2953 16-Pin DIP LP2952 16-Pin SO LP2953 16-Pin SO www.national.com Ordering Information Order Number LP2952IN, LP2952AIN, LP2952IN-3.3, LP2952AIN-3.3 LP2952IM, LP2952AIM, 01112711 LP2952IM-3.3, LP2952AIM-3.3 Order Number LP2953IN, LP2953AIN, LP2953IN-3.3, LP2953AIN-3.3 LP2953IM, LP2953AIM, 01112713 LP2953IM-3.3, LP2953AIM-3.3 LP2953AMJ/883 ...

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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. Storage Temperature Range Operating Temperature Range LP2952I, LP2953I, LP2952AI, LP2953AI, LP2952I-3.3, LP2953I-3.3, LP2952AI-3.3, LP2953AI-3.3 LP2953AM Lead Temp. (Soldering, 5 seconds) Power Dissipation (Note 2) Electrical Characteristics operating temperature range ...

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All Voltage Options (Continued) Electrical Characteristics Limits in standard typeface are for T anteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless other- wise specified (NOM ...

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All Voltage Options (Continued) Electrical Characteristics Limits in standard typeface are for T anteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless other- wise specified (NOM ...

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All Voltage Options (Continued) Electrical Characteristics Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. Note 2: The maximum ...

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Typical Performance Characteristics Unless otherwise specified 6V µ 3V 25˚ 5V OUT Quiescent Current Ground Pin Current vs Load Ground Pin Current = 1 mA 2.2 ...

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Typical Performance Characteristics 25˚ 5V. (Continued OUT Ripple Rejection Ripple Rejection Line Transient Response www.national.com Unless otherwise specified: V 01112733 Line Transient Response 01112735 01112737 ...

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Typical Performance Characteristics 25˚ 5V. (Continued OUT Load Transient Response Dropout Characteristics Enable Transient Unless otherwise specified: V Load Transient Response 01112739 01112741 Short-Circuit Output Current and Maximum Output Current 01112743 ...

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Typical Performance Characteristics 25˚ 5V. (Continued OUT Feedback Bias Current Error Output Divider Resistance www.national.com Unless otherwise specified: V 01112745 Comparator Sink Current 01112747 Comparator Threshold 01112749 10 = 6V, I ...

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Typical Performance Characteristics 25˚ 5V. (Continued OUT Thermal Regulation Dropout Voltage Unless otherwise specified: V Minimum Operating Voltage 01112751 01112753 2.2 µF, ...

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Schematic Diagram Application Hints HEATSINK REQUIREMENTS (Industrial Temperature Range Devices) The maximum allowable power dissipation for the LP2952/ LP2953 is limited by the maximum junction temperature (+125˚C) and the external factors that determine how quickly heat flows away from the ...

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Application Hints (Continued) FIGURE − V TOTAL IN OUT Current/Voltage Diagram The next parameter which must be calculated is the maxi- mum allowable temperature rise, T (max). This is calculated R by using the formula: T ...

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Application Hints (Continued) The military temperature range (−55˚C ≤ T are manufactured in ceramic DIP packages which contain a KOVAR lead frame (unlike the industrial parts, which have a copper lead frame). The KOVAR material is necessary to attain the ...

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Application Hints (Continued) * See Application Hints ** Drive with TTL-low to shut down FIGURE 4. Adjustable Regulator DROPOUT VOLTAGE The dropout voltage of the regulator is defined as the mini- mum input-to-output voltage differential required for the out- put ...

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Application Hints (Continued) SHUTDOWN INPUT A logic-level signal will shut off the regulator output when a < “LOW” ( 1.2V) is applied to the Shutdown input. To prevent possible mis-operation, the Shutdown input must be actively terminated. If the input ...

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Typical Applications (Continued) * Connect to Logic or µP control inputs. LOW BATT flag warns the user that the battery has discharged down to about 5.8V, giving the user time to recharge the battery or power down some hardware with ...

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Typical Applications 5V Regulator with Timed Power-On Reset Timing Diagram for Timed Power-On Reset * MEG 0.1 µ Regulator with Snap-On/Snap-Off Feature and Hysteresis * Turns 5.87V IN ...

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Typical Applications (Continued) 5V Regulator with Timed Power-On Reset, Snap-On/Snap-Off Feature and Hysteresis Timing Diagram Td = (0.28 for components shown. 01112724 FIGURE 6. 19 01112725 www.national.com ...

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Physical Dimensions unless otherwise noted Order Number LP2953AMJ/883, 5962-9233601MEA, LP2953AMJ-QMLV, 5962-9233601VEA Order Number LP2952IM, LP2952AIM, LP2952IM-3.3, LP2952AIM-3.3, LP2953IM, LP2953AIM, LP2953IM-3.3 or LP2953AIM-3.3 www.national.com inches (millimeters) 16-Pin Ceramic DIP NS Package Number J16A 16-Pin Surface Mount NS Package Number M16A 20 ...

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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number LP2952IN, LP2952AIN, LP2952IN-3.3 or LP2952AIN-3.3 Order Number LP2953IN, LP2953AIN, LP2953IN-3.3 or LP2953AIN-3.3 14-Pin Molded DIP NS Package Number N14A 16-Pin Molded DIP NS Package Number N16A 21 www.national.com ...

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... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...