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同步降压型DC变换器CXSD62276输入电压2.7V～5.5V固定开关频率2.25MHz PFM/PWM模式极低输出电压纹波 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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目录7.相关产品 产品概述 返回TOP CXSD62276是一款应用于电池供电便携设备中的同步降压型DC-DC变换器。2.7V～5.5V的输入电压范围使得CXSD62276成为单节锂（离子）电池、三节镍氢电池或三节镍镉电池供电应用的理想选择.CXSD62276工作在2.25MHz固定开关频率，允许使用小型化电感与电容，节省面积。片内集成的同步开关提高了转换效率，不需要外部肖特基二极管。CXSD62276内置软启动功能，避免了启动过程中的浪涌电流。用户可选择强制PWM或者PFM/PWM模式工作：强制PWM模式提供极低的输出电压纹波，而PFM模式用于在轻负载时提高效率。CXSD62276选用TDFN-6封装，输出电流高达1.5A。The CXSD62276 is synchronous step-down DC-DC converters optimized for battery powered portable applications. The 2.7V to 5.5V input voltage range makes CXSD62276 ideal for powering portable equipment that runs from 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3V or 5V voltage rail. The CXSD62276 operates at 2.25MHz fixed switching frequency allowing the use of small inductors and capacitors to achieve a small solution size. The internal synchronous switch increases efficiency and eliminates the need for an external schottky diode. The CXSD62276 has internal soft start and avoids inrush current during startup. The CXSD62276 has a user selectable mode of forced PWM and PFM/PWM mode. The forced PWM mode operation provides the lowest ripple noise and the PFM mode operation provides high efficiency at light loads. The CXSD62276is available in TDFN-6 package and it provides up to 1.5A output current.产品特点 返回TOP
• 效率高达95% • 2.25MHz固定开关频率 • 1.5A负载电流 • 30μA静态电流 • 2.7V to 5.5V 输入电压范围 • 可调输出电压低至0.6V • 无需肖特基二极管 • 短路保护和过温保护 • 内部软启动 • TDFN-6封装 • 符合RoHS规范、Lead(Pb)-Free、Halogen-Free High Efficiency Up to 95% 2.25MHz Constant Switching Frequency 1.5A Available Load Current 30μATypical Quiescent Current 2.7V to 5.5V Input Voltage Range Adjustable Output Voltage as Low as 0.6V No Schottky Diode Required Short Circuit and Thermal Protection Internal Soft Start Function Available in TDFN-6 Package RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free 应用范围 返回TOP
• SSD模块 • 智能手机 • 平板电脑 • 便携式媒体播放器 • μC/μP, FPGA和DSP电源 • 用于路由器和交换机的DC/DC模块插件 SSD Module Smart Phones Tablet PC Portable Media Players μC/μP, FPGA and DSP Power Plug-in DC/DC Modules for Routers and Switchers 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！ 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 |
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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 ~ |
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