Low-dropout Linear Regulator Au8011A with a Low Dropout of 75mV max at 1A and Input Voltage Range from 1.1V to 6.5V

时间： 2023-12-07 来源：Aurasemi

技术问答

The Au8011A is a low-noise (6µV_RMS), low-dropout linear regulator (LDO) capable of sourcing 1A with only 75mV of max dropout. The device output voltage is adjustable from 0.8V to 5.15V using an external resistor divider.

Au8011A is the ideal choice to power noise-sensitive components found in high speed interfaces such as SERDES, and communication infrastructure such as High Speed ADCs, DACs, and RF components due to its exceptional PSRR and low noise (6µV_RMS) characteristics.

The 5V output capability of this device is well suited for RF amplifiers and RF front end. The Au8011A device is also well suited for digital loads such as ASICs, FPGAs, and DSPs that require a low-input voltage and low-output voltage to minimize power dissipation while providing excellent transient performance that caters to current steps in digital loads due to clock domain switching, dynamic power and frequency scaling. The soft-start capability minimizes in-rush current, thereby allowing for a smooth and reliable start-up at the system level.

Features

Low Dropout: 75mV max at 1A

1% (max) Accuracy Over Line, Load, and Temperature

Output Voltage Noise: 6µV_RMS at 0.8V Vout

Input Voltage Range:1.1V to 6.5V

Output Voltage Range:0.8V to 5.15V (Set by resistor divider)

Excellent PSRR of 36dB at 1MHz

Stable with low ESR ceramic cap

Supports Power Good function

Excellent Load Transient Response

Adjustable Soft-Start In-Rush Control

3mm × 3mm, 8-Pin DFN

Applications

Telecom MIMO RF front end components

Digital Loads: SerDes, FPGAs and DSPs

High-speed Analog Circuits: VCO, ADC, DAC and LVDS

Absolute Maximum Ratings

ESD Ratings

Recommended Operating Conditions

Thermal Information

Ordering Information

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本文由Vicky转载自Aurasemi，原文标题为:Au8011A: 1A Ultra Low Noise, Ultra Low Dropout Regulator，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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