LP2951CN 5V/ADJ 150mA LDO Regulator 3V-30V Input ±0.5% Accuracy TO-220/DIP-8 -40°C to +125°C Low Quiescent Current

LP2951CN

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Features

andbull;Low Quiescent Bias Current of 75 A

andbull;Low Inputandminus;toandminus;Output Voltage Differential of 50 mV at 100 A and 380 mV at 100 mA andbull;5.0 V, 3.3 V or 3.0 V andplusmn;0.5% Allows Use as a Regulator or Reference

andbull;Extremely Tight Line and Load Regulation

andbull;Requires Only a 1.0 F Output Capacitor for Stability

andbull; Internal Current and Thermal Limiting

andbull;NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AECandminus;Q100 Qualified and PPAP Capable

andbull;These Devices are Pbandminus;Free and RoHS Compliant

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Description

The LP2950 and LP2951 are micropower voltage regulators that are specifically designed to maintain proper regulation with an extremely low inputandminus;toandminus;output voltage differential. These devices feature a very low quiescent bias current of 75 A and are capable of supplying output currents in excess of 100 mA. Internal current and thermal limiting protection is provided.

The LP2951 has three additional features. The first is the Error Output that can be used to signal external circuitry of an out of regulation condition, or as a microprocessor powerandminus;on reset. The second feature allows the output voltage to be preset to 5.0 V, 3.3 V or 3.0 V output (depending on the version) or programmed from 1.25 V to 29 V. It consists of a pinned out resistor divider along with direct access to the Error Amplifier feedback input. The third feature is aShutdown input that allows a logic level signal to turnandminus;off or turnandminus;on the regulator output.

Due to the low inputandminus;toandminus;output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension of useful battery life is desirable. The LP2950 is available in the three pin case 29 and DPAK packages, and the LP2951 is available in the eight pin dualandminus;inandminus;line, SOICandminus;8 and Micro8 surface mount packages. The andlsquo;Aandrsquo; suffix devices feature an initial output voltage tolerance andplusmn;0.5%.

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Information

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Drawing

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