6.5V, 2A, Low Noise, Low Dropout Linear Regulator

The RTQ2532A/RTQ2532N is a high-current (2A), low-noise (6.8μVRMS), high-accuracy (1% over line, load, and temperature), low-dropout linear regulator (LDO) capable of sourcing 2A with an extremely low dropout (maximum 125mV). The device output voltage is pin-selectable (up to 3.95V) using a PCB layout without the need of external resistors, thus reducing the overall component count. Designers can achieve higher output voltages with the use of an external resistor divider. The device supports a single input supply voltage as low as 1.1V that makes it easy to use.The low noise, high PSRR, and high output current capability make the RTQ2532A/RTQ2532N 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 RTQ2532A/RTQ2532N is ideal for powering digital loads such as FPGAs, DSPs, and ASICs.The external enable control and power-good indicator functions make the control sequence easier. The output noise immunity is enhanced by adding an external bypass capacitor on the NR/SS pin. The device is fully specified over the temperature range of TJ = -40°C to 125°C and is offered in VQFN-20L 3.5x3.5 and VQFN-20L 5x5 packages.