2.7V至5.5V的输入电压4A输出电流1MHz频率电流模的降压型直流CXSD62294效率高达96%占空比100%负载瞬态响应

2.7V至5.5V的输入电压4A输出电流1MHz频率电流模的降压型直流CXSD62294效率高达96%占空比100%负载瞬态响应

产品型号：CXSD62294
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：43 次
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产品简介

CXSD62294是一款采用1 MHz频率，电流模的降压型直流-直流变换器，提供高达4A的输出电流。该芯片的工作电压范围从2.7V到5.5V，输出电压从0.6V到5V，芯片内部集成了主开关管和同步管以提高效率，不需外接肖特基二极管。

技术参数

输入电压范围 (VIN)≤ 2.7~5.5V
输出电压 (VOUT)0.6-~5V
输出电流 (IOUT)4000A
工作频率1000Hz
转换效率96%%
封装类型TDFN-10
TopologyBuck降压型芯片
Control methodPWM/PFM
Switching frequency1000
Protection过流/过压/过温
Features静态工作电流:500
Operating temp-40℃~125℃
Reference design反馈电压FB(V):4000

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

      CXSD62294A是一款采用1 MHz频率，电流模的降压型直流-直流变换器，提供高达4A的输出电流。该芯片的工作电压范围从2.7V到5.5V，输出电压从0.6V到5V，芯片内部集成了主开关管和同步管以提高效率，不需外接肖特基二极管。CXSD62294A可以通过外部引脚设置为强制脉宽调制模式（FPWM）或脉冲跳跃模式（PSM），FPWM时提供很低的输出纹波，适合于噪声敏感的应用场合，而PSM可以在轻负载时减少开关损耗来提高效率。CXSD62294A具有短路保护和过温保护功能，可以提高系统的可靠性，软启动电路用以减小启动过程中的输入浪涌电流。CXSD62294A提供具有散热片的3mm×3mm 的TDFN-10封装。The CXSD62294A is a 1 MHz fixed frequency synchronous, current-mode, step-down dc-dc converter capable of providing up to 4A output current. The CXSD62294A operates from an input range of 2.7V to 5.5V and provides a regulated output voltage from 0.6V to 5V. The internal synchronous power switch improves efficiency and eliminates the need for an external Schottky diode. The ECXSD62294 can be externally set for either forced PWM continuous mode or pulse skipping mode. Forced PWM operation provides very low output ripple voltage for noise sensitive applications while pulse skipping operation improves light load efficiency by reducing switching loss. The CXSD62294 features short circuit and thermal protection circuits to improve system reliability. Internally soft-start avoids input inrush current during startup. The CXSD62294 is available in TDFN 3mm× 3mm 10-pin package with the exposed pad.

   产品特点 返回TOP

 

‧2.7V至5.5V的输入电压范围

‧效率高达96%

‧高达4A的输出电流

‧62/35mΩ的集成主开关管和同步管

‧1MHz固定开关频率

‧100%占空比低压降工作

‧短路保护和过温保护

‧集成UVLO 和 Power Good功能

‧良好的线性瞬态和负载瞬态响应

‧提供3mm×3mm 的TDFN-10封装

‧符合RoHS规范及Pb-Free

 2.7V to 5.5V Input Voltage Range

 High Efficiency up to 96%

 4A Available Load Current

 62/35m Integrated PFET/NFET Switches

 1MHz Switching Frequency

 100% Duty Cycle Low Dropout Operation

 Short Circuit and Thermal Protection

 Integrated UVLO and Power Good

 Excellent Line and Load Transient Response

 Available in 10-Pin 3mm′ 3mm TDFN Package

 RoHS Compliant and 100% Lead(Pb)-Free

Halogen-Free

   应用范围 返回TOP

 

‧高性能DSPs, FPGAs, ASICs和微处理器

‧基站，远程通信，网络设备电源

‧便携PC与上网本

 High Performance DSPs, FPGAs, ASICs and

Microprocessors

 Base Station, Telecom, and Networking

Equipment Power Supplies

 ePC and NetPCs

   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

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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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