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LP2950CN Datasheet(PDF) 1 Page - Texas Instruments |
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LP2950CN Datasheet(HTML) 1 Page - Texas Instruments |
1 / 43 page LP2950-N, LP2951-N www.ti.com SNVS764N – JANUARY 2000 – REVISED MAY 2013 LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators Check for Samples: LP2950-N, LP2951-N 1 FEATURES DESCRIPTION The LP2950-N and LP2951-N are micropower 2 • 5V, 3V, and 3.3V Versions Available voltage regulators with very low quiescent current (75 • High Accuracy Output Voltage μA typ.) and very low dropout voltage (typ. 40 mV at • Ensured 100 mA Output Current light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. • Extremely Low Quiescent Current Furthermore, the quiescent current of the LP2950- • Low Dropout Voltage N/LP2951-N increases only slightly in dropout, • Extremely Tight Load and Line Regulation prolonging battery life. • Very Low Temperature Coefficient The LP2950-N-5.0 is available in the surface-mount • Use as Regulator or Reference PFM package, and in the popular 3-pin TO-92 package for pin-compatibility with older 5V regulators. • Needs Minimum Capacitance for Stability The 8-lead LP2951-N is available in plastic, ceramic • Current and Thermal Limiting dual-in-line, WSON, or metal can packages and • Stable With Low-ESR Output Capacitors (10 offers additional system functions. m Ω to 6Ω) One such feature is an error flag output which warns of a low output voltage, often due to falling batteries LP2951-N VERSIONS ONLY on the input. It may be used for a power-on reset. A • Error Flag Warns of Output Dropout second feature is the logic-compatible shutdown input which enables the regulator to be switched on and • Logic-Controlled Electronic Shutdown off. Also, the part may be pin-strapped for a 5V, 3V, • Output Programmable From 1.24 to 29V or 3.3V output (depending on the version), or programmed from 1.24V to 29V with an external pair of resistors. Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference. Block Diagram and Typical Applications Figure 1. LP2950-N 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 © 2000–2013, 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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