Datasheet > RT6224A

RT6224A

更新时间： 2024-01-18 02:24:04

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	306K
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技术参数
数据手册

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RT6224A 技术参数

Status：	Active	Vin (min) (V)：	4.3
Vin (max) (V)：	18	Number of Outputs：	1
Vout (min) (V)：	0.6	Vout (max) (V)：	5
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	3	Current Limit (typ) (A)：	4.4
Freq (typ) (kHz)：	500	Freq (min) (kHz)：
Freq (max) (kHz)：		Ext Sync：	No
Ron_HS (typ) (mOhm)：	90	Ron_LS (typ) (mOhm)：	45
Iq (typ) (mA)：	0.5	Features：	ACOT Control;OCP;PSM;UVP
Package Type：	TSOT-26(FC)	Datasheet：	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS6224AB-02.pdf

RT6224A 数据手册

RT6224A/B

3A, 18V, 500kHzACOT^TMSynchronousStep-Down Converter

General Description

Features

^Small Output Voltage at Light Load

^High-Side Over-Current Limit

^Integrated 90mΩ/45mΩ MOSFETs

^4.3V to 18V Supply Voltage Range

^500kHz Switching Frequency

^ACOT^TMControl

The RT6224A/B is a high-efficiency, monolithic

synchronous step-downDC-DC converter that can deliver

up to 3.5A output peak current from a 4.3V to 18V input

supply. The RT6224A/B adopts ACOT^TMarchitecture to

allow the transient response to be improved and keep in

constant frequency. Cycle-by-cycle current limit provides

protection against shorted outputs and soft-start eliminates

input current surge during start-up. Fault conditions also

include output under-voltage protection, output over-voltage

protection, and thermal shutdown.

^0.6V 1.5% Voltage Reference

^Monotonic Start-Up into Pre-Biased Outputs

Applications

 Set Top Box

 Portable TV

 Access Point Router

 DSL Modem

 LCD TV

Ordering Information

RT6224A/B

Package Type

J6F : TSOT-23-6 (FC)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Pin Configuration

UVP Option

H: Hiccup

(TOP VIEW)

PSM/PWM

SW VIN EN

A : PSM/PWM

B : Force-PWM

Note :

Richtek products are :

BOOT GND FB

 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.

TSOT-23-6 (FC)

Simplified Application Circuit

RT6224A/B

BOOT

VIN

OUT

Enable

GND

is a registered trademark of Richtek Technology Corporation.

DS6224A/B-02 August 2018

www.richtek.com

12 3 4 5 6 7...15

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