SPX2954 Datasheet | MaxLinear

250m A Low Dropout Voltage Regulator Description The SPX2954 and SPX2954A are low power voltage regulators. These devices are an excellent choice for use in battery-powered applications such as cordless telephones, radio control systems, and portable puters. The SPX2954 and SPX2954A feature low quiescent current and low dropout voltage (typ. 20m V at 100µA and 310m V at 250m A). This includes a tight initial tolerance (0.5% for SPX2954A), extremely good load and line regulation (0.05% typ.), and very low output temperature coefficient (20 ppm/°C typ.), making the SPX2954/SPX2954A useful as a low-power voltage reference. The error flag output feature is used as a power-on reset for warning of a low output voltage, due to a falling input voltage. The logicpatible shutdown feature enables the regulator to be switched ON and OFF. The SPX2954/SPX2954A is offered in a 3-pin SOT-223 package and an 8-pin SOIC package. SOT-223-3 is available, SOIC-8 is obsolete Features - 5.0V and 3.3V versions at 250m A output - Accurate 0.5% for SPX2954A - Very low quiescent current - Low dropout: 310m V at 250m A - Extremely tight load and line regulation - Very low temperature coefficient - Current and thermal limiting - Need only 1µF for stability - Direct replacement for LP2954 - Error flag warns of output dropout - Logic-controlled electronic shutdown - Programmable output from 1.24V to 30V Typical Application 100K ERROR OUTPUT SHUTDOWN INPUT ERROR VOUT SD GND 1.23V 1.2 to 30V + R1 3.3μF .01μF...