CXSD6224是一颗耐压高至24V，输出电流0.3A的异步降压转换器.。CXSD6224是专为载波模块的供电需求特别优化设计。在输出电流为30mA时，不跳频，保持高频震荡的情况下，效率高于70%。
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目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
CXSD6224是一颗耐压高至24V，输出电流0.3A的异步降压转换器.。CXSD6224是专为载波模块的供电需求特别优化设计。在输出电流为30mA时，不跳频，保持高频震荡的情况下，效率高于70%。其采用特别的PWM控制技术，在实现上述要求的同时保持输出纹波最小，对载波通讯的影响最小。
The CXSD6224 is a wide input range, high-efficiency, high frequency DC-to-DC step-down switching regulator, capable of delivering up to 0.3A of output current. With a fixed switching frequencyof 1.4MHz, this current mode PWM controlled converter allows the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples. It also maintains its switching frequency above 1MHz even at very low output current to keep it away from the PLC frequency, which is normally 500KHz. Together with the tiny package CXSD6224 is in, without external compensation components, it is an ideal solution for system designer with stringentboard space requirements. CXSD6224 also employs a proprietary control scheme that switches the device into a power save mode during light load, thereby extending the range of high efficiency operation.
二.产品特点
◆宽输入电压4.2-24V
◆0.3A输出电流
◆转换效率高达94%
◆5V/30mA输出效率72%
◆轻载高效，待机电流0.6mA
◆25V输入过压保护
◆耐受输入峰值电压达30V
◆基准电压0.81V
◆Wide Input Operating Range from 4.5V to 24V
◆High Efficiency: Up to 94%
◆Capable of Delivering 0.3A
◆1.4MHz Switching frequency
◆No External Compensation Needed
◆Current Mode control
◆Logic Control Shutdown
◆Thermal shutdown and UVLO
◆Available in SOT23-6 Package
三.应用范围
◆载波模块
◆监控摄像模组
◆家庭网关
◆车载智能系统
◆安防设备
四.技术规格书（产品PDF)
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五.产品封装图
六.电路原理图
七.相关芯片选择指南
| DC-DC>同步降压 | |||||||
| Device | Device | Architecture | VIN | VIN | VOUT | VOUT | IOUT |
| Description | (min) | (max) | (min) | (max) | (max) | ||
| (V) | (V) | (V) | (V) | (A) | |||
| CXSD62018 | I2C 18V/2.5A同步降压 | I2C控制 | 4.2 | 18 | 0.7 | 12 | 2.5 |
| CXSD6219 | 18V/2A同步降压 | 外部补偿 | 4.2 | 18 | 0.923 | 6 | 2 |
| CXSD6219B | 18V/2.5A同步降压 | 外部补偿 | 4.2 | 18 | 0.923 | 6 | 2 |
| CXSD6220 | 18V/3A同步降压 | 外部补偿 | 4.2 | 18 | 0.923 | 6 | 3 |
| CXSD6221 | 18V/4A同步降压 | 外部补偿 | 4.2 | 18 | 0.923 | 9 | 4 |
| CXSD6222 | 18V/2A同步降压 | 内部补偿 | 4.2 | 18 | 0.8 | 6 | 2 |
| CXSD6223 | 24V/1.2A异步降压 | 内部补偿 | 4.2 | 24 | 0.81 | 6 | 1.2 |
| CXSD6224 | 24V/0.3A异步降压 | 内部补偿 | 4.2 | 24 | 0.81 | 6 | 0.3 |
| CXSD6225 | 42V/1.5A异步降压 | 内部补偿 | 4.2 | 38 | 0.8 | 6 | 1.5 |
| CXSD6226 | 36V/3A异步降压 | 内部补偿 | 4.2 | 36 | 0.85 | 12 | 3 |
| CXSD6227 | 36V/3.5A异步降压 | 内部补偿 | 4.2 | 36 | 0.8 | 12 | 3.5 |
| CXSD6228 | 42V/0.6A异步降压 | 内部补偿 | 4.2 | 38 | 0.8 | 12 | 0.6 |
| CXSD6229 | 42V/0.6A异步降压 | 内部补偿 | 4.2 | 38 | 0.8 | 12 | 0.6 |
| CXSD6230 | 42V/0.4A异步降压 | 内部补偿 | 4.2 | 38 | 0.8 | 6 | 0.4 |
| CXSD6231 | 7V/1.2A同步降压 | 内部补偿 | 2.6 | 7 | 0.6 | 5 | 1.2 |
| CXSD6232 | 6V/1.2A同步降压 | 内部补偿 | 2.6 | 6 | 0.6 | 5 | 1 |
| CXSD6233 | 6V/2A 3MHz同步降压 | 内部补偿 | 2.6 | 5.5 | 0.6 | 5 | 2 |
| CXSD6234 | 6V/2A 3MHz同步降压 | 内部补偿 | 2.6 | 5.5 | 0.6 | 5 | 2 |
| CXSD6235 | 6V/3A同步降压 | 外部补偿 | 3.6 | 6 | 0.8 | 5 | 3 |
| CXSD6235A | 6V/3A同步降压 | 外部补偿 | 2.5 | 6 | 0.8 | 5 | 3 |
| CXSD6235B | 6V/3A同步降压 | 外部补偿 | 2.5 | 6 | 0.8 | 5 | 3 |
| CXSD6236 | 6V/3.5A快速响应同步降压 | 内部补偿 | 2.6 | 5.5 | 0.45 | 5 | 3.5 |
| CXSD6237 | 6V/1.2A同步降压 | 内部补偿 | 2.6 | 6 | 0.6 | 5 | 1 |
| CXSD6238 | I2C控制5A快速响应同步降压 | 内部补偿 | 2.5 | 5.5 | 0.6 | 1.23 | 3.5 |
| CXSD6239 | 6V/1.2A同步降压 | 内部补偿 | 2.6 | 6 | 0.6 | 5 | 1 |
◀ 上一篇:CXSD6223耐压高至24V输出电流1.2A的异步降压转换器开关频率达1.4MHz纹波小PWM/PFM自动切换的轻载高效模式
下一篇▶:CXSD6225耐压高至42V输出电流1.5A的异步降压转换器12V转5V效率高达91%轻载高效
