Datasheet > RT5784B

RT5784B

更新时间： 2024-11-26 17:00:39

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
14页	310K
描述
2A, 6V, 1.5MHz, 25μA IQ, ACOT? Synchronous Step-Down Converter

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RT5784B 数据手册

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Reference

Design

RT5784A/B

2A, 6V, 1.5MHz, 25μA I_Q, ACOT^TMSynchronous Step-Down

Converter

General Description

Features

 Dramatically Fast Transient Response

 Steady 1.5MHz 200kHz Switching Frequency

 Very Low Input Quiescent and Shutdown Currents

 Advanced COT Control Loop Design

 Optimized for Ceramic Output Capacitors

 2.5V to 6V Input Voltage Range

The RT5784A/B is a high-performance,Advanced Constant

On-Time (ACOT^TM) monolithic synchronous step-down

DC-DC converter that can deliver up to 2Aoutput current

from a 2.5V to 6V input supply. The proprietary ACOT

control architecture features quick transient response and

provides stable operation with small ceramic output

capacitors and without complicated external

compensation. The switching ripple voltage is easily

smoothed-out by small package filtering elements due to

a constant switching frequency of 1.5MHz and the

maximum duty cycle of 100% allows the device to operate

at low dropout use. With internal low on-resistance power

switches and extremely low quiescent current, the

RT5784A/B displays excellent efficiency and good behavior

across a range of applications.

 Accurate Voltage Reference 0.6V 2%

 Integrated 100mΩ/60mΩ MOSFETs

 Internal Start-Up into Pre-biased Outputs

 Power Good Indicator

 Enable Control

 Over-Current and Over-Temperature Protections

 Under-Voltage Protection with Hiccup Mode

 RoHS Compliant and Halogen Free

Applications

 Mobile Phones and HandheldDevices

Cycle-by-cycle current limit provides protection against

shorted outputs, input under-voltage lock-out, output

under-voltage protection, and thermal shutdown provide

safe and smooth operation in all operating conditions. The

RT5784A/B is available in the WDFN-8JL 2x1.5 (FC)

package.

 STB, Cable Modem, and xDSL Platforms

 WLANASIC Power / Storage (SSDand HDD)

 General Purpose for POL LV Buck Converter

Simplified Application Circuit

VIN

OUT

PGOOD

RT5784A/B

OUT

PGOOD

Enable

PGOOD

VOUT

AGND

PGND

is a registered trademark of Richtek Technology Corporation.

DS5784A/B-03 March 2018

www.richtek.com

12 3 4 5 6 7...14

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与RT5784B相关器件

型号	品牌	获取价格	描述	数据表
RT5785A	RICHTEK	获取价格	暂无描述
RT5785B	RICHTEK	获取价格	2A, 6V, 1.5MHz, 25μA IQ, ACOT® Synchronous St
RT5788A	RICHTEK	获取价格	暂无描述
RT5788B	RICHTEK	获取价格	暂无描述
RT5789A	RICHTEK	获取价格	暂无描述
RT5789B	RICHTEK	获取价格	暂无描述
RT5795A	RICHTEK	获取价格	暂无描述
RT5796A	RICHTEK	获取价格	暂无描述
RT5796B	RICHTEK	获取价格	1.5A, 1MHz, 6V CMCOT Synchronous Step-Down Converter
RT5796C	RICHTEK	获取价格	1.5A, 1MHz, 6V CMCOT Synchronous Step-Down Converter