4.5V～30V宽输入电压3A负载电流同步电流模降压型DC变换器CXSD62289可编程软启动340KHz固定开关频率输出电压可调0.925V至20V

4.5V～30V宽输入电压3A负载电流同步电流模降压型DC变换器CXSD62289可编程软启动340KHz固定开关频率输出电压可调0.925V至20V

产品型号：CXSD62289
产品类型：DC-DC转换器
产品系列： Buck降压型芯片
产品状态：量产
浏览次数：42 次
加入收藏

产品简介

CXSD62289是一款同步电流模降压型DC-DC变换器，可以提供高达3A的负载电流，具有很好的线性和负载调整率，轻负载时跳跃周期工作以提高效率。该变换器可以在4.5V～30V的宽输入电压范围内稳定工作，通过外部反馈电阻可方便地将输出电压设置为0.925V~20V

技术参数

输入电压范围 (VIN)≤ 4.5~30V
输出电压 (VOUT)0.923~20V
输出电流 (IOUT)3000A
工作频率340Hz
转换效率>95%%
封装类型SOP-8(EP)
TopologyBuck降压型芯片
Control methodPWM/PFM
Switching frequency340
Protection过流/过压/过温
Features静态工作电流:450
Operating temp-40℃~125℃
Reference design反馈电压FB(V):3000

产品详细介绍

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

    CXSD62289A是一款同步电流模降压型DC-DC变换器，可以提供高达3A的负载电流，具有很好的线性和负载调整率，轻负载时跳跃周期工作以提高效率。该变换器可以在4.5V～30V的宽输入电压范围内稳定工作，通过外部反馈电阻可方便地将输出电压设置为0.925V~20V。CXSD62289A具有过温功能，还可以在每个周期进行峰值电流限制，以确保芯片的可靠性。关断时静态电流可达1μA以下。所具有的可编程软启动功能可以有效减小启动时的输入浪涌电流和输出过冲。CXSD62289A仅需少量的外围器件即可实现变换器功能。The CXSD62289A is a synchronous current mode buck regulator capable of driving 3A continuous load current with excellent line and load regulation. The CXSD62289A can operate with an input range 4.5V to 30V and the output can be externally set from 0.925V to 20V with a resistor divider. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 1μA of supply current. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup. Automatic pulse skipping mode operation increase efficiency at light loads. The CXSD62289A require a minimum number of external components.

   产品特点 返回TOP

 

• 高达3A的输出电流

• 轻负载时自动跳跃周期以提高效率

• 230ns最小导通时间

• 35V输入浪涌电压保护

• 内部集成160/110mΩ的DMOS开关管

• 输入电压范围：4.5V至30V

• 输出电压可调：0.925V至20V

• 效率高达95%

• 关断电流<1μA

• 340KHz固定开关频率

• 可编程的软启动

• 过温保护和过流保护

• 输入过压/欠压保护

• SOP-8（EP）封装

• 符合RoHS规范及Pb-Free

 3A Output Current

 Automatic Pulse Skipping Mode at Light Load

 35V Input Surge Protection

 Integrated 160m/110m DMOS Switches

 4.5V to 30V Input Operating Range

 Output Adjustable from 0.925V to 20V

 Up to 95% Efficiency

 1μA Shutdown Current

 Fixed 340KHz Frequency

 Programmable Soft-Start

 Thermal Shutdown and Overcurrent Protection

 Input Supply Overvoltage and Undervoltage

Lockout

 230ns Minimum On Time

 Available in SOP-8 (EP) Package

 RoHS Compliant and 100% Lead(Pb)-Free

Halogen-Free

   应用范围 返回TOP

 

• 分布式电源

• 网络系统

• PC设备

• 便携产品

 Distributed Power Systems

 Networking Systems

 PC Monitors

 Portable Electronics

   技术规格书（产品PDF) 返回TOP 

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！

 QQ截图20160419174301.jpg

产品封装图 返回TOP

a

电路原理图 返回TOP

 

 

blob.png

相关芯片选择指南 返回TOP                   更多同类产品......

 

DC/DC开关稳压器 > 降压转换器/控制器

Part   

Number

remark

Iout 

(mA)

Vin 

(V)

Vout 

(V)

IQ 

(μA)

FB 

(V)

Freq. 

(KHz)

Peak 

Efficency 

(%)

Package

CXSD62255

6A, 30V, Synchronous Step-Down Converter with Programmable Frequency

6000

2.7~30

0.8~20

1000

0.8

100~1000

>95

TQFN-23L

CXSD62256

2A, 30V, 340KHz Synchronous Step-Down Converter

2000

4.5~30

0.92~20

1000

0.92

340

>94

SOP-8

CXSD62257

3A, 30V, 340KHz Synchronous Step-Down Converter

3000

4.5~30

0.92~20

1000

0.92

340

>94

SOP-8(EP)

CXSD62258

CC/CV Mode Synchronous Step-Down Converter

4000

8~36

0.6~12

1000

0.6

80~800

>95

SOP-8(EP)

CXSD62259

Dual-Channel CC/CV Mode Synchronous Step-Down Controller

5000

8~36

0.6~12

1000

0.6

150

>95

MSOP-10

CXSD62260

CC/CV Mode Synchronous Step-Down Converter

4000

4.5~36

0.6~20

1000

0.6

80~800

>95

SOP-8(EP)

CXSD62261

CC/CV Mode Synchronous Step-Down Converter

4000

4.5~30

0.6~12

1000

0.6

80~800

>95

SOP-8(EP)

CXSD62262

Dual-Channel CC/CV Mode Synchronous Step-Down Converter

5000

8~36

0.6~12

1000

0.6

80~800

95

SOP-8(EP)

CXSD62263

5A, CC/CV Mode Step-Down Converter

5000

8~36

1.18~12

500

1.18

120

>95

SOP-8(EP)

CXSD62264

CC/CV Mode Step-Down Converter

3000

8~36

1.18~12

500

1.18

120

>95

SOP-8

CXSD62265

3A,40V,200KHz Step-Down Converter

3000

4.75~40

0.92~15

550

0.92

200

>95

SOP-8(EP)

CXSD62266

1.5MHz, 800mA Synchronous Step-Down Converter with Soft Start

800

2.5 ~ 5.5

0.6~Vin

270

0.6

1500

> 96

TSOT23-5,SOT23-5

CXSD62267

3A, Synchronous Step-Down Converter

3000

2.7~5.5

0.6~5

500

0.6

1000

>96

TDFN-10,SOP-8(EP)

CXSD62268

1A, 2.25MHz Synchronous Step-Down DC/DC Regulator

1000

2.7~5.5

0.6~3.3

30

0.6

2250

>94

TDFN-6

CXSD62269

1.5MHz,1A Synchronous Step-Down Converter with Soft Start

1000

2.5 ~ 5.5

0.6~5

270

0.6

1500

> 96

TDFN-6,SOT23-5,TSOT23-5

CXSD62270

5A, 3MHz Synchronous Step-Down DC-DC with I2C Compatible Interface

5000

2.7~5.5

0.6~1.4

52

-

3000

-

WCSP-20

CXSD62271

1A, 2.25MHz Synchronous Step-Down DC/DC Regulator

1000

2.7 ~ 5.5

0.6~Vin

30

0.6

2250

> 95

TDFN-6,TSOT23-5

CXSD62272

Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter

1000 /1000

2.5 ~ 5.5

0.6~5

270

0.6

1500

> 96

TDFN-12

CXSD62273

Dual 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator

1000/1000

2.7 ~ 5.5

0.6~Vin

45

0.6

2250

> 95

TDFN-10

CXSD62274

Dual 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator

1000/1000

2.7 ~ 5.5

0.6~Vin

30

0.6

2250

> 95

TDFN-12

CXSD62275

1.2A,30V,1.2MHz Step-Down Converter

1200

4.5 ~ 30

0.8~15

550

0.8

1200

> 92

SOT23-6

CXSD62276

1.5A, 2.25MHz Synchronous Step-Down DC/DC Regulator

1500

2.7 ~ 5.5

0.6~Vin

30

0.6

2250

> 95

TDFN-6

CXSD62277

1.5A,40V,200KHz Step-Down Converter

1500

4.75 ~ 40

0.92~15

550

0.92

200

> 95

SOP-8

CXSD62278

2A, Synchronous Step-Down Converter

2000

2.7 ~ 5.5

0.8~5

500

0.8

1000

> 96

SOP-8

CXSD62279

2A, 30V, 340KHz SynchronousStep-Down Converter

2000

4.5 ~ 30

0.923~20

450

0.923

340

>93

SOP-8

CXSD62280

2A, 30V, 340KHz Synchronous Step-Down Converter

2000

4.5~30

0.923~20

450

0.923

340

>95

SOP-8

CXSD62281

2A, 30V, 340KHz Synchronous Step-Down Converter

2000

4.5~30

0.923~20

450

0.923

340

>95

SOP-8

CXSD62282

3A,30V,500KHz Step-Down Converter

3000

4. 5 ~ 30

0.8~12

450

0.8

500

> 95

SOP-8(EP)

CXSD62283

3A, 28V, 500kHz Synchronous Step-Down Converter

3000

4.5 ~ 28

0.8~24

1100

0.8

500

>95

SOP-8(EP)

CXSD62284

3A, 28V, 500kHz Synchronous Step-Down Converter

3000

4.5 ~ 28

0.8~24

1100

0.8

500

>95

SOP-8（EP）

CXSD62285

3A, 28V, 1MHz Synchronous Step-Down Converter

3000

4.5 ~ 28

0.8~24

1100

0.8

1000

>95

SOP-8(EP),TDFN-8(EP)

CXSD62286

3A,40V,200KHz Step-Down Converterr

3000

4.75 ~ 40

0.92~15

550

0.92

200

>95

SOP-8(EP)

CXSD62287

3A, 28V, 1MHz Synchronous Step-Down Converter

3000

4.5 ~ 28

0.8~24

1100

0.8

1000

>95

SOP-8（EP）

CXSD62288

3A, 30V, 340KHz Synchronous Step-Down Converter

3000

4.5 ~ 30

0.925~12

450

0.925

340

>95

SOP-8(EP)

CXSD62289

3A, 30V, 340KHz Synchronous Step-Down Converter

3000

4.5~30

0.923~20

450

0.925

340

>95

SOP-8(EP)

CXSD62290

3.2A, Synchronous Step-Down Converter

3200

2.7 ~ 5.5

0.8~5

500

0.8

1000

> 96

SOP-8(EP)

CXSD62291

4A, 21V, 500KHz Synchronous Step-Down Converter

4000

4.5 ~ 21

0.8~15

900

0.808

500

>95

SOP-8(EP)

CXSD62292

5A,30V,500KHz Step-Down Converter

5000

5.5 ~ 30

1.222~26

550

1.222

500

> 95

SOP-8(EP)

CXSD62293

6A Synchronous Step-Down Converter

6000

3.3~5.5

0.6~2

1000

0.6~2

1200

>93

TQFN-20

CXSD62294

4A, Synchronous Step-Down Converter

4000

2.7~5.5

0.6-~5

500

0.6

1000

96

TDFN-10

CXSD62295

2A, 24V, 340KHz Synchronous Step-Down Converter

2000

4.5~24

0.92~20

1000

0.92

340

94

SOP-8,TSOT23-8

CXSD62296

3A, 24V, 340KHz Synchronous Step-Down Converter

3000

4.5~24

0.92~20

1000

0.92

340

94

SOP-8

用户评论

共有条评论
用户名: 密码:
验证码: 匿名发表