Datasheet > RTQ2537

RTQ2537

更新时间： 2024-12-01 17:02:11

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
25页	971K
描述
4A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear Regulator

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RTQ2537 数据手册

RTQ2537

4A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear Regulator

General Description

Features

^Input Voltage Range : 1.1V to 6.5V

The RTQ2537 is a high-current (4A), low-noise (6.8μV_RMS),

high accuracy (1% over line, load, and temperature), low-

dropout linear regulator (LDO) capable of sourcing 4Awith

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 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.

^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

^^6.8μV_RMSat 0.8V Output

^^10μV_RMSat 3.3V Output

^Ultra Low Dropout Voltage : 240mV Max. at 4A

 Enable Control

The low noise, high PSRR and high output current capability

makes the RTQ2537 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 RTQ2537 is ideal for powering

digital loads such as FPGAs, DSPs, and ASICs.

 Programmable Soft-Start Output

 Stable with a 47μF or Larger Ceramic Output

Capacitor

 Support Power-Good Indicator Function

 RoHS Compliant and Halogen Free

The external enable control and power good indicator

function makes the control sequence easier. The output

noise immunity is enhanced by adding external bypass

capacitor on theNR/SS pin. The device is fully specified

over the temperature range of T_J= −40°C to 125°C and is

offered in a VQFN-20L 3.5x3.5 package.

Applications

 Portable ElectronicDevices

 Wireless Infrastructures : SerDes, FPGA, DSP

 RF, IF Components : VCO, ADC, DAC, LVDS

Simplified Application Circuit

RTQ2537

VIN

VOUT

OUT

Power Good

OUT

PGOOD

Enable

NR/SS

GND

is a registered trademark of Richtek Technology Corporation.

DSQ2537-03 May 2023

www.richtek.com

12 3 4 5 6 7...25

中文翻译

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与RTQ2537相关器件

型号	品牌	获取价格	描述	数据表
RTQ2538H	RICHTEK	获取价格	2A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2539A	RICHTEK	获取价格	3A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2539C	RICHTEK	获取价格	3A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2540H	RICHTEK	获取价格	4A, 6.5V, Ultra-Low Noise, Ultra-Low Dropout Linear Regulator
RTQ2551A	RICHTEK	获取价格	1A Ultra-Low Dropout Voltage LDO Regulators with Soft-Start
RTQ2551A-QA	RICHTEK	获取价格	1A Ultra-Low Dropout Voltage LDO Regulators with Soft-Start
RTQ2569-QA	RICHTEK	获取价格	36V, 2μA IQ, Peak 200mA, Low Dropout Voltage
RTQ-25V101MG10UQ-R2	TAIYO YUDEN	获取价格	FOR AUTOMOTIVE VERTICAL CHIP TYPE ALUMINUM ELECTROLYTIC CAPACITORS[RTQ]
RTQ-25V151MH10UQ-R2	TAIYO YUDEN	获取价格	FOR AUTOMOTIVE VERTICAL CHIP TYPE ALUMINUM ELECTROLYTIC CAPACITORS[RTQ]
RTQ-25V221MH10UQ-R2	TAIYO YUDEN	获取价格	FOR AUTOMOTIVE VERTICAL CHIP TYPE ALUMINUM ELECTROLYTIC CAPACITORS[RTQ]

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