CXSD6258 该调节器需要最少数量的外部元件，使用简单，包括内部频率补偿和固定频率振荡器。该PWM控制电路能够将占空比从0%线性调整到100%一个使能功能，一个过电流保护功能内置当短路保护功能发生时，工作频率由300kHz降低到60kHz
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目录
7.相关产品
产品概述
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The CXSD6258 is a 300KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 5A 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. When short protection function happens, the operation frequency will be reduced from 300KHz to 60KHz. An internal compensation block is built in to minimize external component count.
产品特点
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n Wide 5V to 32V Input Voltage Range
n Output Adjustable from 0.8V to 30V
n Maximum Duty Cycle 100% n Minimum Drop Out 0.6V
n Fixed 300KHz Switching Frequency
n 5A Constant Output Current Capability
n Internal Optimize Power MOSFET
n High efficiency
n Excellent line and load regulation
n TTL shutdown capability
n EN pin with hysteresis function
n Built in thermal shutdown function
n Built in current limit function
n Built in output short protection function
n Available in TO-263 package
应用范围
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n LCD Monitor and LCD TV
n Digital Photo Frame
n Set-up Box
n ADSL Modem
n 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
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电路原理图
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相关芯片选择指南
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降压型直流电源变换器芯片(大功率型) |
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产品型号 |
输入电压 |
开关电流 |
开关频率 |
电压版本 |
封装类型 |
|
5V ~ 32V |
4A |
300KHz |
Adj (0.8V) |
TO252-5L |
|
|
5V ~ 32V |
5A |
300KHz |
Adj (0.8V) |
TO263-5L |
|
|
8V ~ 36V |
4A |
180KHz |
Adj (1.25V) |
TO252-5L |
|
|
8V ~ 36V |
5A |
180KHz |
Adj (1.25V) |
TO263-5L |
|
|
8V ~ 40V |
8A |
180KHz |
Adj (1.25V) |
TO220-5L |
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