RTQ2502A

® RTQ2502A 2A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear Regulator General Description The RTQ2502A is a high-current (2A), low-noise (6μVrms), high accuracy (1% over line, load, and temperature), lowdropout linear regulator (LDO) capable of sourcing 2A with extremely low dropout (max. 125mV). The device output voltage is pin-selectable (up to 3.95V) using a PCB layout without the need of external resistors, thus reducing overall component count. Designers can achieve higher output voltage with the use of external resistor divider. The device supports single input supply voltage as low to 1.1V that makes it easy to use. The low noise, high PSRR and high output current capability makes the RTQ2502A ideal to power noise-sensitive devices such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. With very high accuracy, remote sensing, and soft-start capabilities to reduce inrush current, the RTQ2502A is ideal for powering digital loads such as FPGAs, DSPs, and ASICs. The external enable control and power good indicator function makes the sequence control easier. The output noise immunity is enhanced by adding external bypass capacitor on NR/SS pin. The device is fully specified over the temperature range of TJ = −40°C to 125°C and is offered in the VQFN-20L 5x5 package. Features  Input Voltage Range : 1.1V to 6.5V  Two Output Voltage Modes  0.8 V to 5.5V (Set by a Resistive Divider)  0.8 V to 3.95V (Set via PCB Layout, N...