Cxsu6347 is a low-noise charge pump boost DC-DC converter, with input voltage of 2.7v-5.5v, output voltage of 5V, constant frequency of 650khz, load current of 300mA and efficiency of 81%. It does not need external inductance boost, few external components (one fly capacitor and two bypass capacitors at VIN end and VOUT) and small package make it highly integrated and low-cost Noise, low EMI, low ripple and other characteristics, suitable for small battery power applications. The soft start circuit reduces the starting impulse current, and has a low turning off current less than 0.1ua
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目录
7.相关产品
产品概述 返回TOP
CXSU6347是一款低噪声电荷泵升压 DC-DC 转换器，输入 电压 2.7V-5.5V，输出电压 5V，恒定频率 650KHz，可带 负载电流高达 300mA，效率高达 81% ，不需要外置电 感升压，极少的外部元件（一个 FLY 电容和 VIN 端及 VOUT 的两个旁路电容）及小封装使其具有高集成度、低 噪声、低 EMI、低纹波等特点，适用于小型电池电源应用。 内部具有热关断功能和输出短路保护功能，软启动电路减 小了启动的冲击电流，具有低的关断电流小于 0.1uA
产品特点 返回TOP
● 输出电压 5V ±3%
● 输入电压范围2.7V-5.5V
● 输出电流高达300mA（VIN=3.6V）
● 工作频率650KHz
● 效率高达81%（VIN=3.6V，IOUT=100mA）
● 关断电流<0.1uA
● 无电感应用
● 短路保护
● 软启动
应用范围 返回TOP
● 白光LED驱动
● 6-pin SOT23-6
● 锂电池供电应用
● 3V至5V转换应用
● 智能卡读取
● 存储卡 5V 供电
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
电路原理图 返回TOP
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Step-Up DC/DC Converter（升压DC/DC转换器） |
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|
Part |
MODE |
VIN |
VOUT |
Accu |
FOSC |
Eff. |
Application |
Package |
|
PFM |
0.9-6.5V |
3.0-5.0V |
±2.5% |
100K |
85% |
①②③④⑤⑥⑧ |
SOT23-3/SOT23-5/SOT89-3 |
|
|
PWM |
0.9-6.5V |
3.0-5.0V |
±2.5% |
100K |
87% |
①②③④⑤⑥⑧ |
SOT23-3/SOT23-5/SOT89-3 |
|
|
PFM |
0.9-6.5V |
2.7-5.6V |
±2.5% |
180K |
85% |
①②③④⑤⑥⑦ |
SOT23-5/SOT89-3/SOT23-3/TO92 |
|
|
PFM/PWM |
0.9-6.5V |
<20V |
±2% |
300K |
88% |
⑥⑦⑨⑩ |
SOT23-5 |
|
|
PFM |
0.9-6.5V |
1.8-6.0V |
±2% |
150K/ |
85% |
①②③④⑤⑥ |
SOT89-3//SOT23-5/SOT23-3 |
|
|
PFM/PWM |
0.9-6.5V |
<20V |
±2% |
300K |
88% |
⑥⑦⑨⑩ |
SOT23-5 |
|
|
CHARGE |
2.7-5.5V |
5.0V |
±3% |
650K |
81% |
①②④⑦⑧ |
SOT23-6 |
|
|
PFM/PWM |
0.9-6.5V |
<20V |
±2% |
1M |
85% |
⑥⑦⑨⑩ |
SOT23-5/ |
|
|
PFM/PWM |
0.9-6.5V |
<20V |
±2% |
1M |
85% |
⑥⑦⑨⑩ |
SOT23-5/SOT89-5 |
|
|
PFM/PWM |
2.5-5.0V |
<12V |
±2% |
1M |
85% |
⑥⑦⑨⑩ |
SOT23-6 |
|
|
PFM/PWM |
2.5-5.0V |
<20V |
±2% |
1M |
88% |
①⑥⑦⑨⑩ |
SOT23-6 |
|
|
PFM/PWM |
0.9-6.5V |
<20V |
±2% |
1.2M |
85% |
⑥⑦⑨⑩ |
SOT23-6 |
|
|
PFM/PWM, Synchronous |
2.9-4.4V |
<5.5V |
±2% |
1M |
94% |
①②④⑦ |
ESOP8 |
|
|
PFM, Synchronous |
0.9-6.5V |
1.8-6.0V |
±2% |
330K |
85% |
①②③④⑤⑥ |
SOT89-3/ SOT23-5/SOT23-3 |
|
|
PFM, Synchronous |
0.9-5.0V |
1.8-5.0V |
± 2% |
400K |
95% |
①②④⑥⑦ |
SOT89/SOT23/SOT23-5/TO92 |
|
|
PFM, Synchronous |
0.9-6.0V |
1.8-6.0V |
±2% |
140K |
81% |
①②③④⑤⑥ |
SOT89/SOT23-3 |
|
|
Applications： ①Battery powered equipment②Wireless mouse, Wireless keyboard③Toys④Camera, Video camera⑤VCR⑥PDA⑦LED Lighting⑧Wireless communication equipment⑨MID⑩Audio equipment |
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