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CXSD62556 52KHz fixed frequency PWM buck (step-down) DC/DC converter 3A load with high efficiency
| 产品型号： | CXSD62556 |
| 产品类型： | DC-DC转换器 |
| 产品系列： | Buck降压型芯片 |
| 产品状态： | 量产 |
| 浏览次数： | 43 次 |
产品简介
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%
技术参数
| 输入电压范围 (VIN) | ≤ 4.5V ~ 40VV |
|---|---|
| 输出电压 (VOUT) | Adj (1.23V)/5V/12VV |
| 输出电流 (IOUT) | 3AA |
| 工作频率 | 52KHzHz |
| 转换效率 | 95%% |
| 封装类型 | TO263-5L/TO220-5L |
| Topology | 降压型直流电源变换器 |
| Control method | pwm外部补偿 |
| Switching frequency | 52KHz |
| Protection | 过流/过压/过温 |
| Features | 静态工作电流:25uA |
| Operating temp | -40℃~125℃ |
| Reference design | 精度:±5% |
产品详细介绍
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
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 |
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