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
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[ CXLE81119 ]"
目录
7.相关产品
产品概述 返回TOP
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
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
ABS set-top boxed
DVB-S/S2
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产品封装图 返回TOP
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 ) |
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Applications: Step-up converter to drive white-LED, constant current output, LED backlight |
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Part No. |
Mode |
VIN |
VOUT |
IQ |
FOSC |
Eff. |
FB Voltage |
Package |
Application |
|
PFM |
0.8~9V |
36uA |
300kHz |
82% |
200mV |
SOT89-5 |
Step-up Converter To Drive One Or Two 1W White LEDs |
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|
PFM |
2~6V |
19V Max |
93μA |
3MHz |
80% |
200mV |
SOT23-6 |
STBA,PHONE,PDA,GPS |
|
|
PWM |
2.5~5.5V |
28V Max |
150μA |
1.2MHz |
90% |
250mV |
SOT23-6 |
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|
PWM |
2~24V |
30V Max |
150μA |
1.2MHz |
96% |
250mV |
SOT23-6 |
机顶盒 |
|
|
PWM |
2.5~5.5V |
30V Max |
150μA |
1.2MHz |
96% |
1.23V |
SOT23-5 |
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