Datasheet > RT5759

RT5759

更新时间： 2024-11-26 17:00:51

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
32页	766K
描述
9A, 6.5V, 1MHz, ACOT? Synchronous Step-Down Converter with I2C Interface

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RT5759 数据手册

RT5759

9A, 6.5V, 1MHz, ACOT^TMSynchronous Step-Down Converter

with I²C Interface

General Description

Features

^Dramatically Fast Transient Response

^Steady 1MHz 20% Switching Frequency

^Advanced COT Control Loop

The RT5759 is a high-performance, synchronous step-

down DC-DC converter that can deliver up to 9A output

current from a 3V to 6.5V input supply. The output voltage

can be programmable from 0.6V to 1.5V with I²C controlled

7-Bits VID.

^Optimized for Ceramic Output Capacitors

^3V to 6.5V Input Voltage Range

^Integrated 12mΩ/8mΩ MOSFETs

^Internal Start-Up into Pre-Biased Outputs

^Power Good Indicator

The device integrates low R_DS(ON)power MOSFETs,

accurate 0.6V reference and an integrated diode of

bootstrap circuit to offer a very compact solution.

^Enable Control

The RT5759 adoptsAdvanced Constant On-Time (ACOT^TM)

control architecture that provides ultrafast transient

response and further reduce the external-component

count. In steady states, the ACOT^TMoperates in nearly

constant switching frequency over line, load and output

voltage ranges and makes the EMI filter design easier.

The RT5759 offers automatic PSM that maintains high

efficiency during light load operation. The RT5759 can also

operate in Forced-CCM through I²C setting that helps meet

tight voltage regulation accuracy requirements.

^Over-Current and Over-Temperature Protections

^Under-Voltage Protection with Hiccup Mode

 VID Control Range Via I²C Compatible Interface :

0.6V to 1.5V step = 10mV

Applications

 Mobile Phones and HandheldDevices

 STB, Cable Modem, and xDSL Platform

 WLANASIC Power / Storage (SSDand HDD)

 General Purpose for POL LV Buck Converter

 TV

The device offers a variety of functions for more design

flexibility. The switching frequency, current limit level and

over temperature threshold are selectable via I²C.

Independent enable control input pin and power good

indicator are also provided for easy sequence control.

Besides, the designers can also command the device to

be enabled or shutdown via the I²C interface.

Ordering Information

RT5759

Package Type

QUF : UQFN-13L 3x3 (FC) (U-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free)

The device offers Independent enable control input pin and

power good indicator for easily 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 control, UVP, input UVLO and

OTP.

Note :

Richtek products are :

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

 Suitable for use in SnPb or Pb-free soldering processes.

The RT5759 is available in a thermally enhanced UQFN-

13L 3x3 (FC) package.

is a registered trademark of Richtek Technology Corporation.

DS5759-00 August 2018

www.richtek.com

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与RT5759相关器件

型号	品牌	获取价格	描述	数据表
RT5759A	RICHTEK	获取价格	9A, 6.5V, 1MHz, ACOT? Synchronous Step-Down Converter with I2C Interface
RT5760A	RICHTEK	获取价格	6V 1A, ACOT? Buck Converter in Thin SOT-563 Package
RT5760B	RICHTEK	获取价格	6V 1A, ACOT? Buck Converter in Thin SOT-563 Package
RT5760C	RICHTEK	获取价格	6V 1A, ACOT? Buck Converter in Thin SOT-563 Package
RT5760D	RICHTEK	获取价格	6V 1A, ACOT? Buck Converter in Thin SOT-563 Package
RT5761A	RICHTEK	获取价格	6V 1A, ACOT? Buck Converter in Thin UDFN-6L 1.4x1 Package
RT5761B	RICHTEK	获取价格	6V 1A, ACOT? Buck Converter in Thin UDFN-6L 1.4x1 Package
RT5762A	RICHTEK	获取价格	2A, 1.2MHz, 6V Synchronous Step-Down Converter inSOT-563 (FC) and UDFN-6L 1.4x1 (FC)
RT5762B	RICHTEK	获取价格	2A, 1.2MHz, 6V Synchronous Step-Down Converter inSOT-563 (FC) and UDFN-6L 1.4x1 (FC)
RT5762C	RICHTEK	获取价格	2A, 1.2MHz, 6V Synchronous Step-Down Converter inSOT-563 (FC) and UDFN-6L 1.4x1 (FC)

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