Datasheet > RT6353A

RT6353A

更新时间： 2024-04-09 18:58:35

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
29页	1082K
描述
17V Input, 3A, ACOT? Buck Converter with Both FETs OC Protection

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RT6353A 数据手册

RT6353A/B

17V Input, 3A, ACOT^®Buck Converter with Both FETs OC

Protection

General Description

Features

The RT6353A/B is

simple, easy-to-use, 3A

⚫ Integrated 95m and 50m FETs

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

⚫ Continuous Current

 TSOT-23-6 (FC) : 3A

 SOT-563 (FC) : 2.5A

integrates low R

high efficiency.

power MOSFETs to achieve

DS(ON)

⚫ Input Supply Voltage Range : 4.5V to 17V

⚫ Output Voltage Range : 0.6V to 7V

The RT6353A/B adopts Advanced Constant On-Time

⚫ Advanced Constant On-Time (ACOT ) Control

(ACOT ) control architecture to provide an ultrafast

 Ultrafast Transient Response

 Optimized for Low-ESR Ceramic Output

Capacitors

transient response with few external components and

to operate in nearly constant switching frequency over

the line, load, and output voltage range. The RT6353A

operates in automatic PSM that maintains high

efficiency during light load operation. The RT6353B

operates in Forced PWM that helps meet tight voltage

regulation accuracy requirements.

⚫ High Accuracy Feedback Reference Voltage :

1%

⚫ Optional for Operation Modes :

 RT6353A : Power Saving Mode (PSM)

 RT6353B : Forced PWM Mode

The RT6353A/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.

⚫ Fixed Switching Frequency : 580kHz

⚫ Enable Control and Fixed Soft-Start with typ.

1ms

⚫ Safe Start-Up from Pre-biased Output

⚫ Input Under-Voltage Lockout (UVLO)

⚫ Protection Function

 Output Under-Voltage Protection (UVP) with

Hiccup Mode

 High- / Low-side MOSFET OCP and OTP

Function

The recommended junction temperature range is

−40C to 125C.

⚫ RoHS Compliant and Halogen Free

Simplified Application Circuit

BOOT

RT6353A/B

(Optional)

VIN

BOOT

OUT

Enable

FB1

GND

FB2

is a registered trademark of Richtek Technology Corporation.

DS6353A/B-01

September 2023

www.richtek.com

12 3 4 5 6 7...29

中文翻译

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与RT6353A相关器件

型号	品牌	获取价格	描述	数据表
RT6353B	RICHTEK	获取价格	17V Input, 3A, ACOT? Buck Converter with Both FETs OC Protection
RT6360	RICHTEK	获取价格	暂无描述
RT6361	RICHTEK	获取价格	暂无描述
RT6362	RICHTEK	获取价格	60VIN, 2.5A, Asynchronous Step-Down Converter with Low Quiescent Current
RT6363	RICHTEK	获取价格	60VIN, 3.5A, Asynchronous Step-Down Converter with Low Quiescent Current
RT6365	RICHTEK	获取价格	暂无描述
RT6372A	RICHTEK	获取价格	17V Input, 2A, ACOT? Buck Converter with Both FETs OC Protection
RT6372B	RICHTEK	获取价格	17V Input, 2A, ACOT? Buck Converter with Both FETs OC Protection
RT6373A	RICHTEK	获取价格	17V Input, 3A, ACOT? Buck Converter with Both FETs OC Protection
RT6373B	RICHTEK	获取价格	17V Input, 3A, ACOT? Buck Converter with Both FETs OC Protection

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