输出负载可达6A同步导通时间固定高效率的降压型DC-DC转换器CXSD62255输入电压可高至30V线性瞬态响应和负载瞬态响应外部可调的软启动功能

输出负载可达6A同步导通时间固定高效率的降压型DC-DC转换器CXSD62255输入电压可高至30V线性瞬态响应和负载瞬态响应外部可调的软启动功能

产品型号：CXSD62255
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
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产品简介

CXSD62255是一款同步、导通时间固定、高效率的降压型DC-DC转换器。其输入电压可高至30V，在低至0.8V的输出电压下带载可达6A。采用固定导通时间的架构，使其在具有快速的瞬态响应的基础上还能维持相对恒定的工作频率，工作频率可以通过外部电阻在100KHz~1MHz的范围内调整

技术参数

输入电压范围 (VIN)≤ 2.7~30V
输出电压 (VOUT)0.8~20V
输出电流 (IOUT)6000A
工作频率100~1000Hz
转换效率>95%
封装类型TQFN-23L
TopologyBuck降压型芯片
Control methodPWM/PFM
Switching frequency100~1000
Protection过流/过压/过温
Features静态工作电流:1000
Operating temp-40℃~125℃
Reference design反馈电压FB(V):6000

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

        CXSD62255是一款同步、导通时间固定、高效率的降压型DC-DC转换器。其输入电压可高至30V，在低至0.8V的输出电压下带载可达6A。CXSD62255采用固定导通时间的架构，使其在具有快速的瞬态响应的基础上还能维持相对恒定的工作频率。CXSD62255的工作频率可以通过外部电阻在100KHz~1MHz的范围内调整。CXSD62255同时集成了输入欠压保护功能、逐周期限流功能、输出过压保护功能、短路保护功能和过温保护功能。同时，外部可调的软启控制最大程度上的抑制了可能出现在启动阶段的浪涌电流和输出过冲。CXSD62255采用4mm x 4mm的TQFN-23L封装。The CXSD62255 is a synchronous, step-down constant on-time buck regulator capable of driving 6A continuous load current. The CXSD62255 can operate with an input range 2.7V to 30V and the output can be externally set down to 0.8V. The CXSD62255 provides excellent transient response with constant on-time control method while maintaining a nearly constant frequency. The switching frequency can be externally programmed from 100KHz to 1MHz. Fault condition protection includes VIN under-voltage lockout, cycle-by-cycle current limiting, output over-voltage protection, short-circuit protection, as well as thermal shutdown. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup. The CXSD62255 is available in a 4mm x 4mm TQFN-23L package.

   产品特点 返回TOP

• 宽输入电压范围：2.7V~30V

• 输出负载可达6A

• 良好的线性瞬态响应和负载瞬态响应

• 内部集成Power NMOS:上管37mΩ，下管15mΩ

• 工作频率可在100KHz~1MHz范围内调整

• 外部可调的软启动功能

• 两种工作模式：Force PWM和PFM

• 输出电压状态指示

• 输入欠压保护功能

• 输出过压保护功能

• 短路保护功能

• 逐周期的限流保护功能

• 过温保护功能

• 4mm x 4mm TQFN-23L封装

• 符合RoHS规范及Lead(Pb)-Free Halogen-Free 

Wide input voltage range: 2.7V to 30V

  6A Output Current

  Excellent line and load transient responses

  Integrated 37mΩ N-Channel MOSFET For High Side

  Integrated 15mΩ N-Channel MOSFET For Low Side

  Programmable PWM Frequency from 100kHz to 1000kHz

  Adjustable Soft-Start

  Selectable Forced PWM or automatic PFM/PWM mode

  Power Good Monitoring

  Under-Voltage Protection

  Over-Voltage Protection

  Cycle-by-cycle current limit

  Short-circuit protection

  Over-Temperature Protection

  Available in TQFN-23L 4mmx4mm package

  RoHS Compliant and 100% Lead(Pb)- Free, Halogen-Free

   应用范围 返回TOP

• 笔记本

• 主板

• 平板电脑

• 便携式移动设备

• 一体机

• 机顶盒

• 液晶电视

• 电信/网络/数据通信设备

Notebook  Mother Board

  Table PC  Hand-Held Portable

  AIO PC  Set-top boxes

  LCD TV

  Telecom/Networking/Datacom equipment

   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

 

 

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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

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