LP2951-03YM-TR: A Precision 3V, 100mA Low-Dropout Regulator for Power-Sensitive Designs

In the realm of portable electronics and battery-powered devices, efficient power management is paramount. The LP2951-03YM-TR stands out as a high-accuracy, low-power low-dropout (LDO) voltage regulator engineered specifically for such demanding applications. This IC delivers a fixed, precisely regulated 3V output voltage at currents up to 100mA, making it an ideal solution for powering microcontrollers, sensors, and other critical low-power circuitry.

A key advantage of the LP2951-03YM-TR is its exceptionally low dropout voltage. It can maintain a stable 3V output even when the input supply voltage dips to just 3.3V, a margin of only 300mV. This feature is crucial for maximizing battery life, as it allows the system to continue operating correctly until the battery is nearly completely depleted. Furthermore, the device boasts a very low quiescent current, typically drawing only 75µA when supplying 100mA of load current. This minimizes the device's own power consumption, further preserving energy in standby and operational modes.

The regulator incorporates several protection features that enhance system reliability. These include internal current limiting to protect against short circuits and thermal shutdown to prevent damage from excessive junction temperature. Additionally, the LP2951-03YM-TR offers excellent line and load regulation, ensuring a stable output despite fluctuations in the input voltage or the current drawn by the load. Its SOT-23-5 package is compact and suitable for space-constrained PCB designs.

ICGOOODFIND: The LP2951-03YM-TR is an exceptional choice for designers seeking a reliable, high-performance LDO for 3V systems. Its combination of low dropout voltage, minimal quiescent current, and robust protection features makes it perfectly suited for extending battery life and ensuring stable operation in a wide range of portable and low-power applications.

Keywords: Low-Dropout (LDO) Regulator, 3V Output, 100mA, Low Quiescent Current, Battery-Powered Applications.