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CXSD62556 52KHz fixed frequency PWM buck (step-down) DC/DC converter 3A load with high efficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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目录7.相关产品 产品概述 返回TOP The CXSD62556 is a 52 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.产品特点 返回TOP „ Wide 4.5V to 40V Input Voltage Range „ 5V,12V and adjustable versions „ Output Adjustable from 1.23V to 37V „ Maximum Duty Cycle 100% „ Minimum Drop Out 1.5V „ Fixed 52KHz Switching Frequency „ 3A Constant Output Current Capability „ Internal Optimize Power Transistor „ High efficiency „ Excellent line and load regulation „ TTL shutdown capability „ ON/OFF pin with hysteresis function „ Built in thermal shutdown function „ Built in current limit function „ Available in TO-220,TO-263 packages 应用范围 返回TOP „ LCD Monitor and LCD TV „ Digital Photo Frame „ Set-up Box „ ADSL Modem „ Telecom / Networking Equipment 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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| 降压型直流电源变换器芯片(高效率型) | |||||
| 产品型号 | 输入电压 | 开关电流 | 开关频率 | 电压版本 | 封装类型 |
| CXSD6253 | 3.6V ~ 18V | 2A | 380KHz | Adj (1.222V) | SOP8L |
| CXSD6254 | 3.6V ~ 23V | 3A | 380KHz | Adj (1.222V) | SOP8L |
| CXSD6255 | 3.6V ~ 18V | 2A | 380KHz | Adj (0.8V) | SOP8L |
| CXSD6256 | 3.6V ~ 18V | 3A | 380KHz | Adj (0.8V) | SOP8L |
| CXSD62253 | 4.5V ~ 40V | 2A | 150KHz | Adj (1.23V)/3.3V/5V/12V | SOP8L |
| CXSD62252 | 4.5V ~ 40V | 3A | 150KHz | Adj (1.23V)/5V | TO252-5L |
| CXSD62555 | 4.5V ~ 40V | 3A | 150KHz | Adj (1.23V)/3.3V/5V/12V | TO263-5L/TO220-5L |
| CXSD62556 | 4.5V ~ 40V | 3A | 52KHz | Adj (1.23V)/5V/12V | TO263-5L/TO220-5L |
