RTQ2537 - Richtek

RTQ2537 Ultra Low Dropout Linear Regulator

The RTQ2537 is a high-current (4A), low-noise (6.8μVRMS), high accuracy (1% over line, load, and temperature), lowdropout linear regulator (LDO) capable of sourcing 4A with extremely low dropout (Max. 240mV). 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 co.

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, No External Resistor Required)
 Accurate Output Voltage Accuracy (1%) Over Line, Load and Temperature
 Ultra High PSRR : 40dB at 500kHz
 Excellent Noise Immunity 6.8μVRMS at 0.8V Output 10μVRMS at 3.3V Output
 Ultra Low Dropout Voltage : 240mV Max. at 4A
 Enable Control
 Programmable Soft-Start Output
 Stable with a 47μF or Larger Ceramic Output Capacitor
 Support Power-Good Indicator Function
 RoHS Compliant and Halogen Free Applicat.