CXLE8850是一个150KHz的固定频率脉冲宽度调制降压（降压）DC/DC变换器，能够驱动2.5A的负载，具有高效率、低纹波和良好的线路和负载调节。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。内置一个内部补偿块以最小化外部组件计数
n宽8V至40V输入电压范围
n输出可从1.25伏调整到37伏
n最小压降0.3V
n固定150KHz开关频率
n最大3A开关电流
n内部优化功率MOSFET
n优良的线路和负载调节
n带输出恒流回路
n内置热关机功能
n内置电流限制函数
n内置输入过电压保护
n建议输出功率小于13W
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[ CXLE8850 ]
目录
产品概述 返回TOP
The CXLE8850 is a 150KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2.5A 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. An internal compensation block is built in to minimize external component count.
产品特点 返回TOP
n Wide 8V to 40V Input Voltage Range
n Output Adjustable from 1.25V to 37V
n Minimum Drop Out 0.3V
n Fixed 150KHz Switching Frequency
n Maximum 3A Switching Current
n Internal Optimize Power MOSFET
n Excellent line and load regulation
n With output constant current loop
n Built in thermal shutdown function
n Built in current limit function
n Built in input over voltage protection
n Recommend output power less than 13W
n SOP8-EP (Exposed PAD) package
应用范围 返回TOP
n Car Charger
n Battery Charger
n LCD Monitor and LCD TV
n Portable instrument power supply
n Telecom / Networking Equipment
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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降压型LED射灯驱动IC |
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型号 |
工作电压范围 |
输出电流 |
输出电 流精度 |
线性调 整率 |
效率 |
工作频率 |
调光功能 |
封装 |
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
ESOP8 |
|
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
SOT-26 |
|
|
6V-60V |
1.2A |
2% |
94% |
1.1MHz |
PWM/模拟 调光 |
SOT-89-5 |
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|
2V-6.5V |
0.95A |
10% |
0.45% |
92% |
1.4 MHz |
PWM调光 |
SOT-25 |
|
|
2.5V-5.5V |
0.7A |
3% |
93% |
1.4MHz |
PWM调光 |
SOT-25 |
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|
5.5V-36V |
扩流2.5A |
1% |
96% |
1MHz |
PWM调光 |
SOT-26 |
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|
4V--28V |
扩流25W |
1% |
96% |
2MHz |
PWM/模拟 调光 |
SOT-26 |
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|
2.5V-100V |
扩流2.5A |
1% |
90% |
1MHz |
PWM调光 |
SOT-26 |
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|
5-100V |
1.5A |
1% |
92% |
1MHz |
PWM/模拟 调光 |
ESOP8 |
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|
5-100V |
2.5A |
1% |
92% |
1MHz |
PWM/模拟 调光 |
ESOP8 |
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|
6V-100V |
扩流3A |
3% |
95% |
200KHz |
PWM调光 |
SOT-26 |
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|
8V-45V |
3A |
3% |
95% |
220KHz |
ESOP8 |
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|
8V-40V |
4A |
3% |
95% |
220KHz |
PWM调光 |
TO252-5L |
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|
8V-40V |
5A |
3% |
95% |
220KHz |
TO263-5L |
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5V-36V |
1.5A |
2% |
96% |
380KHz |
PWM调光 |
SOP-8 |
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|
4.5V-45V |
2A |
2% |
83% |
150KHz |
PWM调光 |
ESOP8 |
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|
8V-45V |
3A |
2% |
89% |
150KHz |
ESOP8 |
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|
8V-40V |
3A |
2% |
89% |
180KHz |
SOP8 |
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|
8V-40V |
3.5A |
2% |
87% |
180KHz |
PWM调光 |
ESOP8 |
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|
8V-40V |
2A |
2% |
89% |
110KHz |
SOP8 |
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7V-40V |
2.5A |
2% |
89% |
250KHz |
ESOP8 |
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8V-40V |
5A |
2% |
86% |
150KHz |
TO263-5L |
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6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
SOT89-5 |
|
|
6V-34V |
1.0A |
5% |
1.50% |
97% |
1MHz(max) |
PWM/模拟 调光 |
SOT89-5 |
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