The CXLE8849 is a 150KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2A 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.
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[ CXLE8849 ]"
目录
产品概述 返回TOP
The CXLE8849 is a 150KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2A 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
„ Output Adjustable from 1.235V to 37V
„ Minimum Drop Out 1.5V
„ Fixed 150kHz Switching Frequency
„ 2A Constant Output Current Capability
„ Internal Optimize Power Transistor
„ Excellent line and load regulation
„ TTL shutdown capability
„ ON/OFF pin with hysteresis function
„ With output constant current loop
„ Built in thermal shutdown function
„ Built in current limit function
„ Built in output over voltage protection
„ SOP8-EP (Exposed PAD) package
应用范围 返回TOP
„ Car Charger
„ Battery Charger
„ LED Constant Current Driver
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 |
||
|
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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