LP3906SQ-JXXI/NOPB Integrated Circuits (ICs)

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LP3906SQ-JXXI/NOPB is a low-noise, low-dropout (LDO) linear regulator designed for use in space-constrained, low-voltage applications that require high accuracy and enhanced transient response. The LP3906SQ-JXXI/NOPB requires only a 230 mV dropout voltage, making it suitable for 1.2 V and lower voltage applications. It provides up to 1.5 A of output current, enabling it to supply all the power needs of many consumer and industrial designs.

The LP3906SQ-JXXI/NOPB is a two-terminal, single-channel device, with positive input and output pins. It features a high-performance, on-chip error amplifier with low drift and wide-dynamic-range voltage feedback. This ensures consistent output voltage accuracy over the temperature range and transient load conditions, with a guaranteed accuracy of ±3%. The error amplifier is connected to an external feedback network through a resistor divider, which sets the output voltage. The output of the error amplifier biases the p-channel MOSFETs in the output stage, compared to the feedback voltage, so as to maintain regulation. When the switch is turned on, the output provides a clean, regulated voltage.

The LP3906SQ-JXXI/NOPB also features low output noise (LT39RN) and low output dropout voltage. The output impedance at high frequencies is low, ensuring stable operation and good filtering performance. Additionally, the low bias current required by the error amplifier minimizes power dissipation in the device.

The LP3906SQ-JXXI/NOPB is available with pre-programmed (fixed) output voltages from 0.8 V to 1.5 V, with a ±3% accuracy over temperature and transient conditions. The device is highly suitable for precision applications as well as for battery applications, as it offers extremely low quiescent current and excellent power supply rejection ratio (PSRR) at full load. The LP3906SQ-JXXI/NOPB is available in a wide range of packages, from SOT-23 to WLP, to fit different board design needs.

The LP3906SQ-JXXI/NOPB is an ideal solution for powering space-constrained, low voltage applications requiring high accuracy and enhanced transient response. It offers exceptional performance with low-noise and low-dropout operation, as well as high accuracy over temperature and transient conditions.

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