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LP2951-5.0 Datasheet(PDF) 1 Page - First Components International |
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LP2951-5.0 Datasheet(HTML) 1 Page - First Components International |
1 / 3 page FEATURES • High accuracy output voltage • Guaranteed 100mA output • Very low quiescent current • Low dropout voltage • Extremely tight load and line regulation • Very low temperature coefficient • Needs only 1 µF for stability • Error Flag warns of output dropout • Logic-Controlled electronic shutdown • Output programmable from 1.24 to 29V APPLICATIONS • Battery powered systems • Cordless telephones • Radio control systems • Portable/Palm top/Notebook computers • Portable consumer equipment • Portable Instrumentation • Avionics • Automotive Electronics • SMPS Post-Regulator • Voltage Reference PRODUCT DESCRIPTION The LP2950-XX/LP2951-XX is a low power voltage regulator. This device excellent choice for use in battery powered application such as c ordless telephone, radio control systems, and portable computers. The LP2950-XX/LP2951-XX features very low quiescent current (75 µA Typ.) and very low drop output voltage (Typ. 40mV at light load and 380mV at 100mA). This includes a tight initial tolerance of 0.5% typ., extremely good load and line regulation of 0.05% typ., and very low output temperature coefficient, making the LP2950-XX/LP2951-XX useful as a low-power voltage reference. The error flag output feature is used as power-on reset for warn of a low output voltage, due to following batteries on input. Other feature i s the logic-compatible shutdown input which enable the regulator to be switched on and off. The LP2951-XX is available in 8-pin plastic packages. The regulator output voltage may be pin-strapped for a -XX volt or programmed from 1.24 volt to 29 volts with external pair of resistors. The LP2950-XX is offered in 3-pin TO-92 package compatible with other fixed regulator. Absolute Maximum Ratings Power Dissipation Internally Limited Lead Temperature (Soldering, 5 seconds) 260 °C Storage Temperature Range -65 °C to+150°C Operating Junction Temperature Range -55 °C to +150°C Input Supply Voltage -0.3 to +30V Feedback Input Voltage -1.5 to +30V Shutdown Input Voltage -0.3 to +30V Error Comparator Output -0.3 to +30V Pin Connection LP2951-XX Top View TO-92 Plastic Package (LP2950-XX only) Bottom View Device Selection Guide Vout , V olts Device 2.85* LP2950-2.85, LP2951-2.85 3.0 LP2950-3.0, LP2951-3.0 3.3 LP2950-3.3, LP2951-3.3 5.0 LP2950-5.0, LP2951-5.0 * - other versions are also available Vout = 2.0V to 5.0V. Please consult factory for more information Figure 1. Adjustable Regulator LP2950/LP2951 100mA Low Drop Out Voltage Regulators |
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