电流模脉宽调制PWM降压型DC变换器1.2A输出电流CXSD62275关断电流低至1μA效率高达92%宽输入电压4.5V～30V

电流模脉宽调制PWM降压型DC变换器1.2A输出电流CXSD62275关断电流低至1μA效率高达92%宽输入电压4.5V～30V

产品型号：CXSD62275
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：38 次
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产品简介

CXSD62275是一款采用电流模脉宽调制（PWM）架构的降压型DC-DC变换器，可以提供1.2A的负载电流，具有很好的线性调整率和负载调整率。CXSD62275可以在4.5V～30V宽输入电压范围内稳定工作，通过外部分压电阻调节实现0.8V~15V的输出电压

技术参数

输入电压范围 (VIN)≤ 4.5 ~ 30V
输出电压 (VOUT)0.8~15V
输出电流 (IOUT)1200A
工作频率1200Hz
转换效率> 92%%
封装类型SOT23-6
TopologyBuck降压型芯片
Control methodPWM/PFM
Switching frequency1200
Protection过流/过压/过温
Features静态工作电流:550
Operating temp-40℃~125℃
Reference design反馈电压FB(V):1200

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

     CXSD62275是一款采用电流模脉宽调制（PWM）架构的降压型DC-DC变换器，可以提供1.2A的负载电流，具有很好的线性调整率和负载调整率。CXSD62275可以在4.5V～30V宽输入电压范围内稳定工作，通过外部分压电阻调节实现0.8V~15V的输出电压。CXSD62275具有周期性的峰值电流限制和过温等保护机制，以确保芯片工作的安全性。芯片在关断模式下的静态电流可低至1μA。 内部的软启动功能可以很好的抑制浪涌电流和输出电压的过冲。CXSD62275采用SOT23-6和TSOT23-6封装，并且通过少数量的标准外围器件实现变换器功能，有效的节省了应用空间。The CXSD62275 is current mode, step-down switching regulator capable of driving 1.2A continuous load with excellent line and load regulation. The CXSD62275 can operate with an input voltage range from 4.5V to 30V and the output can be externally set from 0.8V to 15V with a resistor divider. Fault protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 1μA of supply current. Internal soft-start minimizes the inrush current and the output overshoot. The CXSD62275 is available in SOT23-6 and TSOT23-6 packages.

   产品特点 返回TOP

 

• 具有1.2A的输出电流

• 内部集成0.3Ω的DMOS开关管

• 输入电压范围：4.5V至30V

• 输出电压可调：0.8V至15V

• 效率高达92%

• 关断电流低至1μA

• 1.2MHz固定开关频率

• 过温保护和过流保护

• 输入欠压锁定

• SOT23-6和TSOT23-6封装

• 符合RoHS规范及Pb-Free

 1.2A Output Current

 0.3 Internal DMOS Output Switch

 4.5V to 30V Input Operating Range

 Output Adjustable from 0.8V to 15V

 Up to 92% Efficiency

 1μA Shutdown Current

 Fixed 1.2MHz Frequency

 Thermal Shutdown and Overcurrent Protection

 Input Supply Undervoltage Lockout

 Available in SOT23-6 and TSOT23-6 Packages

 RoHS Compliant and 100% Lead(Pb)-Free

Halogen-Free

   应用范围 返回TOP

 

• 分布式电源系统

• 电池充电器

• 线性变换器的前置电源

• WLED驱动

 Distributed Power Systems

 Battery Charger

 Pre-Regulator for Linear Regulators

 WLED Drivers

   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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