CXSD62556 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%
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目录
7.相关产品
产品概述 返回TOP
The CXSD62556 is a 52 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A 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
„ 5V,12V and adjustable versions
„ Output Adjustable from 1.23V to 37V
„ Maximum Duty Cycle 100%
„ Minimum Drop Out 1.5V
„ Fixed 52KHz Switching Frequency
„ 3A Constant Output Current Capability
„ Internal Optimize Power Transistor
„ High efficiency
„ Excellent line and load regulation
„ TTL shutdown capability
„ ON/OFF pin with hysteresis function
„ Built in thermal shutdown function
„ Built in current limit function
„ Available in TO-220,TO-263 packages
应用范围 返回TOP
„ LCD Monitor and LCD TV
„ Digital Photo Frame
„ Set-up Box
„ ADSL Modem
„ Telecom / Networking Equipment
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产品封装图 返回TOP
电路原理图 返回TOP
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降压型直流电源变换器芯片(高效率型) | |||||
产品型号 | 输入电压 | 开关电流 | 开关频率 | 电压版本 | 封装类型 |
CXSD6253 | 3.6V ~ 18V | 2A | 380KHz | Adj (1.222V) | SOP8L |
CXSD6254 | 3.6V ~ 23V | 3A | 380KHz | Adj (1.222V) | SOP8L |
CXSD6255 | 3.6V ~ 18V | 2A | 380KHz | Adj (0.8V) | SOP8L |
CXSD6256 | 3.6V ~ 18V | 3A | 380KHz | Adj (0.8V) | SOP8L |
CXSD62253 | 4.5V ~ 40V | 2A | 150KHz | Adj (1.23V)/3.3V/5V/12V | SOP8L |
CXSD62252 | 4.5V ~ 40V | 3A | 150KHz | Adj (1.23V)/5V | TO252-5L |
CXSD62555 | 4.5V ~ 40V | 3A | 150KHz | Adj (1.23V)/3.3V/5V/12V | TO263-5L/TO220-5L |
CXSD62556 | 4.5V ~ 40V | 3A | 52KHz | Adj (1.23V)/5V/12V | TO263-5L/TO220-5L |