Cxsu63131 series DC / DC chip is a low static current PFM switching DC / DC boost converter manufactured by CMOS technology. The series chip adopts advanced current design and manufacturing technology, which greatly improves the inherent noise problem of the switch circuit and reduces the interference to the surrounding circuit. The output voltage is 2.0v-5.0v, and the maximum oscillation frequency is 300kHz. The DC / DC boost circuit composed of cxsu63131 with built-in switch transistor only needs to connect three peripheral components, a Schottky diode, an inductor and a capacitor. The cxsu63131 with CE terminal has the function of turning off, which can minimize the power consumption of the chip. The cxsu63131 with ext terminal can expand the application of the chip Application range: the series of chips are suitable for 1-4 battery powered equipment with low noise and large current
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目录
7.相关产品
产品概述 返回TOP
CXSU63131系列DC/DC芯片是采用CMOS工艺制造的低静态电流的PFM开关型DC/DC升压型转换器，该系列芯片采用先进的电流设计和制造工艺，极大地改善了开关电路固有的噪声问题，减少对周围电路的干扰。输出电压为2.0V-5.0V，最高振荡频率为300KHZ，对内置开关晶体管的CXSU63131组成DC/DC升压电路只需接三个外围元件，一只肖特基二极管，一只电感和一只电容，带CE端的CXSU63131，具有关断功能，可使芯片功耗达到最小，带EXT端的CXSU63131可扩展驱动外置MOS管拓展了芯片的应用范围，该系列芯片适用于低噪声，较大电流的1-4节电池供电设备
产品特点 返回TOP
1.低电压启动：最小可在0.8V启动
2.占空比：80%内建自动开关模式控制
3.外部零件：
4.线图，电容器，二极管
5.精度正负2.5%
6.高效率：正负85%
7.最高工作频率300KHZ
8.输出电流大于300MA
应用范围 返回TOP
便携式CD
供电给微机
电力供应音频设备
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Asynchronous-PFM Step up |
|||||||||
|
Product |
Product Info |
Vin Min |
Vin Max |
Iout max |
Quiescent current |
Vout max |
Freq KHZ |
Effiency |
Package |
|
180KHZ DC/DC升压转换器 |
0.9V |
7V |
300mA |
30 |
7V |
180 |
78% |
SOT23/SOT25/SOT89-3 |
|
|
300KHZ DC/DC升压转换器 |
0.9V |
7V |
300mA |
15 |
7V |
300 |
85% |
SOT23/SOT89-3/TO92 |
|
|
Synchro-PFM Step up |
|||||||||
|
Product |
Product Info |
Vin Min |
Vin Max |
Iout max |
Quiescent current |
Vout max |
Freq KHZ |
Effiency |
Package |
|
同步DC/DC升压转换器 |
0.9V |
7V |
300 |
15 |
7V |
300 |
85% |
SOT23/SOT89-3/TO92 |
|
