CXSD62267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3A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。CXSD62267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
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产品概述 返回TOP
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3A的输出电流
•69/45mΩ 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封装和SOP-8封装
•符合RoHS规范及Pb-Free
2.7V to 5.5V Input Voltage Range
High Efficiency up to 96%
3A Available Load Current
69/45m 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
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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 |
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Part Number |
remark |
Iout (mA) |
Vin (V) |
Vout (V) |
IQ (μA) |
FB (V) |
Freq. (KHz) |
Peak Efficency (%) |
Package |
|
6A, 30V, Synchronous Step-Down Converter with Programmable Frequency |
6000 |
2.7~30 |
0.8~20 |
1000 |
0.8 |
100~1000 |
>95 |
TQFN-23L |
|
|
2A, 30V, 340KHz Synchronous Step-Down Converter |
2000 |
4.5~30 |
0.92~20 |
1000 |
0.92 |
340 |
>94 |
SOP-8 |
|
|
3A, 30V, 340KHz Synchronous Step-Down Converter |
3000 |
4.5~30 |
0.92~20 |
1000 |
0.92 |
340 |
>94 |
SOP-8(EP) |
|
|
CC/CV Mode Synchronous Step-Down Converter |
4000 |
8~36 |
0.6~12 |
1000 |
0.6 |
80~800 |
>95 |
SOP-8(EP) |
|
|
Dual-Channel CC/CV Mode Synchronous Step-Down Controller |
5000 |
8~36 |
0.6~12 |
1000 |
0.6 |
150 |
>95 |
MSOP-10 |
|
|
CC/CV Mode Synchronous Step-Down Converter |
4000 |
4.5~36 |
0.6~20 |
1000 |
0.6 |
80~800 |
>95 |
SOP-8(EP) |
|
|
CC/CV Mode Synchronous Step-Down Converter |
4000 |
4.5~30 |
0.6~12 |
1000 |
0.6 |
80~800 |
>95 |
SOP-8(EP) |
|
|
Dual-Channel CC/CV Mode Synchronous Step-Down Converter |
5000 |
8~36 |
0.6~12 |
1000 |
0.6 |
80~800 |
95 |
SOP-8(EP) |
|
|
5A, CC/CV Mode Step-Down Converter |
5000 |
8~36 |
1.18~12 |
500 |
1.18 |
120 |
>95 |
SOP-8(EP) |
|
|
CC/CV Mode Step-Down Converter |
3000 |
8~36 |
1.18~12 |
500 |
1.18 |
120 |
>95 |
SOP-8 |
|
|
3A,40V,200KHz Step-Down Converter |
3000 |
4.75~40 |
0.92~15 |
550 |
0.92 |
200 |
>95 |
SOP-8(EP) |
|
|
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 |
|
|
3A, Synchronous Step-Down Converter |
3000 |
2.7~5.5 |
0.6~5 |
500 |
0.6 |
1000 |
>96 |
TDFN-10,SOP-8(EP) |
|
|
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 |
|
|
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 |
|
|
5A, 3MHz Synchronous Step-Down DC-DC with I2C Compatible Interface |
5000 |
2.7~5.5 |
0.6~1.4 |
52 |
- |
3000 |
- |
WCSP-20 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
1.2A,30V,1.2MHz Step-Down Converter |
1200 |
4.5 ~ 30 |
0.8~15 |
550 |
0.8 |
1200 |
> 92 |
SOT23-6 |
|
|
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 |
|
|
1.5A,40V,200KHz Step-Down Converter |
1500 |
4.75 ~ 40 |
0.92~15 |
550 |
0.92 |
200 |
> 95 |
SOP-8 |
|
|
2A, Synchronous Step-Down Converter |
2000 |
2.7 ~ 5.5 |
0.8~5 |
500 |
0.8 |
1000 |
> 96 |
SOP-8 |
|
|
2A, 30V, 340KHz SynchronousStep-Down Converter |
2000 |
4.5 ~ 30 |
0.923~20 |
450 |
0.923 |
340 |
>93 |
SOP-8 |
|
|
2A, 30V, 340KHz Synchronous Step-Down Converter |
2000 |
4.5~30 |
0.923~20 |
450 |
0.923 |
340 |
>95 |
SOP-8 |
|
|
2A, 30V, 340KHz Synchronous Step-Down Converter |
2000 |
4.5~30 |
0.923~20 |
450 |
0.923 |
340 |
>95 |
SOP-8 |
|
|
3A,30V,500KHz Step-Down Converter |
3000 |
4. 5 ~ 30 |
0.8~12 |
450 |
0.8 |
500 |
> 95 |
SOP-8(EP) |
|
|
3A, 28V, 500kHz Synchronous Step-Down Converter |
3000 |
4.5 ~ 28 |
0.8~24 |
1100 |
0.8 |
500 |
>95 |
SOP-8(EP) |
|
|
3A, 28V, 500kHz Synchronous Step-Down Converter |
3000 |
4.5 ~ 28 |
0.8~24 |
1100 |
0.8 |
500 |
>95 |
SOP-8（EP） |
|
|
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) |
|
|
3A,40V,200KHz Step-Down Converterr |
3000 |
4.75 ~ 40 |
0.92~15 |
550 |
0.92 |
200 |
>95 |
SOP-8(EP) |
|
|
3A, 28V, 1MHz Synchronous Step-Down Converter |
3000 |
4.5 ~ 28 |
0.8~24 |
1100 |
0.8 |
1000 |
>95 |
SOP-8（EP） |
|
|
3A, 30V, 340KHz Synchronous Step-Down Converter |
3000 |
4.5 ~ 30 |
0.925~12 |
450 |
0.925 |
340 |
>95 |
SOP-8(EP) |
|
|
3A, 30V, 340KHz Synchronous Step-Down Converter |
3000 |
4.5~30 |
0.923~20 |
450 |
0.925 |
340 |
>95 |
SOP-8(EP) |
|
|
3.2A, Synchronous Step-Down Converter |
3200 |
2.7 ~ 5.5 |
0.8~5 |
500 |
0.8 |
1000 |
> 96 |
SOP-8(EP) |
|
|
4A, 21V, 500KHz Synchronous Step-Down Converter |
4000 |
4.5 ~ 21 |
0.8~15 |
900 |
0.808 |
500 |
>95 |
SOP-8(EP) |
|
|
5A,30V,500KHz Step-Down Converter |
5000 |
5.5 ~ 30 |
1.222~26 |
550 |
1.222 |
500 |
> 95 |
SOP-8(EP) |
|
|
6A Synchronous Step-Down Converter |
6000 |
3.3~5.5 |
0.6~2 |
1000 |
0.6~2 |
1200 |
>93 |
TQFN-20 |
|
|
4A, Synchronous Step-Down Converter |
4000 |
2.7~5.5 |
0.6-~5 |
500 |
0.6 |
1000 |
96 |
TDFN-10 |
|
|
2A, 24V, 340KHz Synchronous Step-Down Converter |
2000 |
4.5~24 |
0.92~20 |
1000 |
0.92 |
340 |
94 |
SOP-8,TSOT23-8 |
|
|
3A, 24V, 340KHz Synchronous Step-Down Converter |
3000 |
4.5~24 |
0.92~20 |
1000 |
0.92 |
340 |
94 |
SOP-8 |
|
◀ 上一篇:恒定频率电流模脉宽调制（PWM）降压型DC变换器同步整流开关更高的效率CXSD62266软启动功能800mA输出电流
下一篇▶:2.25MHz的固定频率1A负载电流能力2.7V到5.5V的输入电压CXSD62268同步降压DC/DC适合一节锂电池或三节的镍氢电池/镍铬电池的便携式设备
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