CXLE81119恒定频率电流模式的升压DC转换器高效率1.2兆赫28V输出电压4A开关电流限制内部软启动导致小涌流

CXLE81119是一种恒定频率、电流模式的升压转换器，适用于小功率应用。CXLE81119开关频率为1.2兆赫，允许使用2毫米或更低高度的微型低成本电容器和电感。内部软启动导致小涌流和延长电池寿命。CXLE81119包括欠压锁定、限流和热过载保护，以防止在输出过载的情况下损坏。
2V至24V输入电压
高达28V输出电压
集成80mΩ功率MOSFET
1.2兆赫固定开关频率
内部4A开关电流限制
内部补偿
热关机
输出可从0.6V调整

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXLE81119 is a constant frequency, current mode step-up converter intended for small, low power applications. The CXLE81119 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life. The CXLE81119 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. CXLE81119 is available in SOT23-6 package that is PB free.

   产品特点 返回TOP

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 2V to 24V input voltage 

 Up to 28V output voltage 

 Integrated 80mΩ power MOSFET 

 1.2MHz fixed switching frequency 

 Internal 4A switch current limit 

 Internal compensation 

 Thermal shutdown 

 Output adjustable from 0.6V 

 Available in SOT23-6 package

   应用范围 返回TOP

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 ABS set-top boxed 

 DVB-S/S2

   技术规格书（产品PDF) 返回TOP 

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     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

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电路原理图 返回TOP

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升压型LED背光/照明驱动电路(Step-up   White LED Driver )
Applications:   Step-up converter to drive white-LED, constant current output, LED backlight
Part No.	Mode	VIN	VOUT	IQ	FOSC	Eff.	FB Voltage	Package	Application
CXLE8147	PFM	0.8~9V		36uA	300kHz	82%	200mV	SOT89-5	Step-up Converter To Drive One  Or Two 1W White LEDs
CXLE8148	PFM	2~6V	19V Max	93μA	3MHz	80%	200mV	SOT23-6	STBA,PHONE,PDA,GPS
CXLE8149	PWM	2.5~5.5V	28V Max	150μA	1.2MHz	90%	250mV	SOT23-6
CXLE81119	PWM	2~24V	30V Max	150μA	1.2MHz	96%	250mV	SOT23-6	机顶盒
CXLE8150	PWM	2.5~5.5V	30V Max	150μA	1.2MHz	96%	1.23V	SOT23-5