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RTQ2533E

3A, 6.5V, Low-Noise, Low-Dropout Linear Regulator

RTQ2533E
New

The RTQ2533E is a high-current (3A), low-noise (6.8μVRMS), high accuracy (1% over line, load, and temperature), low-dropout linear regulator (LDO) capable of sourcing 3A with an extremely low dropout (maximum 180mV). The device supports a single input supply voltage as low to 1.1V, which makes it easy to use.
The low-noise, high PSRR, and high output current capability make the RTQ2533E 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 RTQ2533E is ideal for powering digital loads such as FPGAs, DSPs, and ASICs.
The external enable control and power good indicator function 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 the VQFN-20L 3.5x3.5 package.

应用

  • Portable Electronic Devices
  • Wireless Infrastructures: SerDes, FPGA, DSP
  • RF, IF, Components: VCO, ADC, DAC, LVDS

主要规格

RTQ2533E
Status Active
Vin (min) (V) 1.1
Vin (max) (V) 6.5
Vout (min) (V) 0.5
Vout (max) (V) 5.5
Output Adj. Method Resistor
Accuracy (+/- %) 1
Iout (max) (mA) 3000
Iq (typ) (uA) 4000
Vdropout @ rated current (typ) (mV) 180 @ 3A
Bias Rail No
Cout Type Ceramic
Charge Pump Yes
Features Adjustable Soft-Start;Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Power Good;Stable with Ceramic Capacitor
Package Type VQFN3.5x3.5-20

关键特性

  • Input Voltage Range: 1.1V to 6.5V

  • Two Output Voltage Modes
    ► 0.5 V to 5.5V (Set by a Resistive Divider)
    ► 0.5V to 2.075V (Set via PCB Layout, No External Resistor Required)

  • Accurate Output Voltage Accuracy (1%) Over Line, Load, and Temperature

  • PSRR: 44dB at 500kHz

  • Noise Immunity
    ► 6.8μVRMS at 0.5V Output
    ► 16μVRMS at 5V Output

  • Dropout Voltage: 180mV Maximum at 3A

  • Enable Control

  • Programmable Soft-Start Output

  • Stable with a 47μF or Larger Ceramic Output Capacitor

  • Support Power-Good Indicator Function

  • Junction Temperature Range: -40°C to 125°C

Application Notes

Datasheet

RTQ2533E_DS-01.pdf

Datasheet

RTQ2533E_DS-01.pdf

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