Datasheet > RT6352A

RT6352A

更新时间： 2024-04-09 18:58:47

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
27页	1498K
描述
17V Input, 2A, ACOT? Buck Converter with Both FETs OC Protection

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RT6352A 数据手册

RT6352A/B

17V Input, 2A, ACOT^®Buck Converter with Both FETs OC

Protection

General Description

Features

The RT6352A/B is

simple, easy-to-use, 2A

 2A Converter Integrated 140m and 84m FETs

 Input Supply Voltage Range : 4.5V to 17V

 Output Voltage Range : 0.6V to 7V

 Advanced Constant On-Time (ACOT^®) Control

 Ultrafast Transient Response

 Optimized for Low-ESR Ceramic Output

Capacitors

synchronous step-down DC-DC converter with an input

supply voltage range of 4.5V to 17V. The device

possesses an accurate reference voltage and

integrates low R_DS(ON)power MOSFETs to achieve

high efficiency.

The RT6352A/B adopts Advanced Constant On-Time

(ACOT^®) control architecture to provide an ultrafast

transient response with few external components and

to operate in nearly constant switching frequency over

the line, load, and output voltage range. The RT6352A

operates in automatic PSM that maintains high

efficiency during light load operation. The RT6352B

operates in Forced PWM that helps meet tight voltage

regulation accuracy requirements.

 High Accuracy Feedback Reference Voltage : Typ.

 1%

 Optional for Operation Modes :

 Automatically Power Saving Mode (PSM)

(RT6352A)

 Forced PWM Mode (RT6352B)

 Fixed Switching Frequency : 580kHz

 Enable Control and Internally Fixed Soft-Start

 Safe Start-Up from Pre-biased Output

 Input Under-Voltage Lockout (UVLO)

 Output Under-Voltage Protection (UVP) with

Hiccup Mode

The RT6352A/B senses both FETs current for a robust

over-current protection (OCP). The device features

cycle-by-cycle current limit protection to prevent the

device from the catastrophic damage in output short

circuit, over-current or inductor saturation conditions. A

built-in soft-start function prevents inrush current during

start-up. The device also includes input under-voltage

lockout, output under-voltage protection, and

over-temperature protection (OTP) to provide safe and

smooth operation in all operating conditions.

 High- /Low-side MOSFET OCP and OTP Function

 RoHS Compliant and Halogen Free

Simplified Application Circuit

BOOT

RT6352A/B

(Optional)

VIN

BOOT

OUT

Enable

FB1

GND

FB2

is a registered trademark of Richtek Technology Corporation.

DS6352A/B-00 August 2021

www.richtek.com

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