Datasheet > RT6263A

RT6263A

更新时间： 2024-09-23 20:00:23

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
27页	1676K
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数据手册

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RT6263A 技术参数

Status：	Preview	Vin (min)(V)：	4.5
Vin (max)(V)：	17	Number of Outputs：	1
Vout (min)(V)：	0.765	Vout (max)(V)：	7
Preset Vout(V)：		Output Adj. Method：	Resistor
Iout (max)(A)：	3	Current Limit (typ)(A)：	4.2
Freq (typ)(kHz)：	650	Freq (min)(kHz)：
Freq (max)(kHz)：		Ext Sync：	No
Ron_HS (typ)(mOhm)：	66	Ron_LS (typ)(mOhm)：	36
Iq (typ)(mA)：	0.18	Features：	ACOT Control;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;OCP;OTP;PSM;Power Good;SCP;Stable with Ceramic Capacitor;UVP
Package Type：	TSOT-28(FC)

RT6263A 数据手册

RT6263A/B

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

Protection

General Description

Features

 3A Converter Integrated 66m and 36m FETs

 Input Supply Voltage Range : 4.5V to 17V

 Maximum Output Voltage Range : 7V

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

 Ultrafast Transient Response

 Optimized for Low-ESR Ceramic Output

Capacitors

The RT6263A/B is

simple, easy-to-use, 3A

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 RT6263A/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 RT6263A

operates in automatic PSM that maintains high

efficiency during light load operation. The RT6263B

operates in Forced PWM that helps meet tight voltage

regulation accuracy requirements.

 High Accuracy Feedback Reference Voltage : Typ.

 1%

 Optional for Operation Modes :

 RT6263A : Power Saving Mode (PSM)

 RT6263B : Forced PWM Mode

 Fixed Switching Frequency : 650kHz

 Enable Control and Externally Adjustable

Soft-Start

The RT6263A/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.

The RT6263A/B offers programmable start-up by

connecting a capacitor at external SS pin. 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.

 Input Under-Voltage Lockout (UVLO)

 Protection Function

 Output Under-Voltage Protection (UVP) with

Hiccup Mode

 High- / Low-side MOSFET OCP and OTP

Function

 Power Good Indication

 RoHS Compliant and Halogen Free

Simplified Application Circuit

BOOT

RT6263A/B

(Optional)

VIN

BOOT

OUT

Enable

FB1

PGOOD

FB2

GND

is a registered trademark of Richtek Technology Corporation.

DS6263A/B-00 January 2020

www.richtek.com

12 3 4 5 6 7...27

中文翻译

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与RT6263A相关器件

型号	品牌	获取价格	描述	数据表
RT6263B	RICHTEK	获取价格	暂无描述
RT6264A	RICHTEK	获取价格	暂无描述
RT6264B	RICHTEK	获取价格	暂无描述
RT6266	RICHTEK	获取价格	暂无描述
RT6268	RICHTEK	获取价格	3.7A, 36V, 100kHz Asynchronous Step-Down Converter with Load Line Compensation
RT6272A	RICHTEK	获取价格	暂无描述
RT6272B	RICHTEK	获取价格	暂无描述
RT6273A	RICHTEK	获取价格	17V Input, 3A, ACOT® Buck Converter with Both
RT6273B	RICHTEK	获取价格	暂无描述
RT6274C	RICHTEK	获取价格	18V Input, 3.5A, ACOT? Buck Converter with Both FETs OC Protection

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