Datasheet > RTQ2823A

RTQ2823A

更新时间： 2024-02-09 06:07:51

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
33页	661K
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RTQ2823A 技术参数

Status：	Active	Vin (min) (V)：	4.5
Vin (max) (V)：	17	Number of Outputs：	1
Vout (min) (V)：	0.6	Vout (max) (V)：	5.5
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	8	Current Limit (typ) (A)：	7.1;9.4
Freq (typ) (kHz)：	1200;400;800	Freq (min) (kHz)：
Freq (max) (kHz)：		Ext Sync：	No
Ron_HS (typ) (mOhm)：	9.8	Ron_LS (typ) (mOhm)：	4.5
Iq (typ) (mA)：	0.6	Features：	ACOT Control;Adjustable Current Limit;Adjustable Frequency;Adjustable Soft-Start;Built-in Bootstrap Switch;Enable Input;Fast Transient Response;Internal Compensation;OTP;OVP;Power Good;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP
Package Type：	VQFN3.5x3.5-18(FC)

RTQ2823A 数据手册

RTQ2823A/B

8A, 17V, High Efficiency Synchronous Step-Down Converter

General Description

Features

^4.5V to 17V Input Voltage Range

^Integrated 9.8mΩ/4.5mΩ MOSFETs

^0.6V 1% Voltage Reference

The RTQ2823A/B is a high-performance, synchronous

step-down converter that can deliver up to 8Aoutput current

with an input supply voltage range of 4.5V to 17V. The

device integrates low R_DS(ON)power MOSFETs, accurate

0.6V reference and an integrated diode for bootstrap circuit

to offer a very compact solution.

^Adjustable Output Voltage from 0.6V to 5.5V

^Supports Ceramic Output Capacitor

^ACOT^TMControl for Fast Transient Response

^Selectable Switching Frequency (400kHz/800kHz/

1200kHz)

The RTQ2823A/B adopts Advanced Constant On-Time

(ACOT^TM) control architecture that provides ultrafast

transient response and further reduce the external-

component count. In steady states, theACOT^TMoperates

in nearly constant switching frequency over line, load and

output voltage ranges and makes the EMI filter design

easier.

^Selectable Current Limit Level

^Power Good Indicator

^Programmable Soft-Start Time with a Default 1ms

^Monotonic Start-Up into Pre-Biased Outputs

 18-Lead VQFN (FC) Package

The device offers a variety of functions for more design

flexibility. The selectable switching frequency, current limit

level and PWM operation modes makes the

RTQ2823A/B easy-to-use over wide application range.

Independent enable control input pin and power good

indicator are also provided for easy sequence control. To

control the inrush current during the startup, the device

provides a programmable soft start-up by an external

capacitor connected to the SS pin. Fully protection

features are also integrated in the device including the

cycle-by-cycle current limit, OVP, UVP, input UVLO and

OTP.

Applications

 Server, Storage andNetwork Equipment

 Telecom Infrastructure

 Point of Load (POL) Power Modules

 HighDensityDC-DC Converters

 High End Digital TV

The RTQ2823A/B is available in a thermally enhanced

VQFN-18L 3.5x3.5 (FC) package.

Simplified Application Circuit

RTQ2823A/B

VIN

BOOT

OUT

Enable Signal

PGOOD

VCC

MODE

AGND

PGND

is a registered trademark of Richtek Technology Corporation.

DSQ2823A/B-00 October 2019

www.richtek.com

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与RTQ2823A相关器件

型号	品牌	描述	获取价格	数据表
RTQ2823B	RICHTEK	暂无描述	获取价格
RTQ2940-QA	RICHTEK	42VIN, 0.5A, Asynchronous Step-Down Converter with Low Quiescent Current	获取价格
RTQ2941-QA	RICHTEK	42VIN, 1.5A, Asynchronous Step-Down Converter with Low Quiescent Current	获取价格
RTQ2942-QA	RICHTEK	42VIN, 2.5A, Asynchronous Step-Down Converter with Low Quiescent Current	获取价格
RTQ2943-QA	RICHTEK	42VIN, 3.5A, Asynchronous Step-Down Converter with Low Quiescent Current	获取价格
RTQ2945A-QA	RICHTEK	42VIN, 5A, Asynchronous Step-Down Converter with Low Quiescent Current	获取价格

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