CXDC6578系列是具有所有必需激活功能的降压开关稳压器。具有良好的线路和负载调节能力，可驱动3A负载。这些设备有3.3V、5V的固定输出电压和可调输出版本。
CXDC6578系列为流行的三端线性稳压器提供了高效的替代品。它还需要最少数量的外部组件。它不仅大大减小了电路板的面积，而且还减小了散热器的尺寸，在某些情况下，不需要散热器。
在规定的输入电压和输出负载条件下，保证输出电压的±4%公差。同时，振荡器频率精度在±10%以内。包括外部关机，具有70μA（典型）备用电流。输出开关包括逐周限流，以及故障条件下完全保护的热关机
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[ 产品资料下载 ]
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
The CXDC6578 series are step-down switching regulators with all required active functions. It is capable of driving 3A load with excellent line and load regulations. These devices are available in fixed output voltages of 3.3V, 5V, and an adjustable output version.
The CXDC6578 series offers a high-efficiency replacement for popular three-terminal linear regulators. Also it requires a minimum number of external components. It substantially not only reduces the area of board size but also the size of the heat sink, and in some cases no heat sink is required.
±4% tolerance on output voltage within specified input voltages and output load conditions is guaranteed. Also, the oscillator frequency accuracy is within ±10%. External shutdown is included, featuring 70μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
二.产品特点
‹ Guaranteed 3A output current
‹ 3.3V, 5V, and adjustable versions
‹ Wide input voltage range, up to 37V
‹ Internal oscillator of 155KHz around fixed frequency
‹ Wide adjustable version output voltage range, from 1.24V to 37V±4% max over line and load conditions
‹ Low standby current, typ. 70μA, at shutdown mode
‹ Requires only 4 external components
‹ Thermal shutdown and current limit protection
‹ P+ product enhancement tested
三.应用范围
‹ LCD Monitors
‹ ADD-ON Cards Switching Regulators
‹ High Efficiency Step-Down Regulators
‹ Car Electronic
四.技术规格书（产品PDF)
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
| DC/DC LED驱动 | |
| 型号 | 详细说明 |
| CXDC6572 | 2A同步整流,SOT23-5, 高效率小封装 |
| CXDC6573A | 2.2A, ACT4060/MP1410 |
| CXDC6574 | 3A高效率DC-DC |
| CXDC6575 | 超低压差 |
| CXDC6576 | 36V,3A替代AP1507 |
| CXDC6577 | 2.5A-3A输出高频高效率高耐压替代MP2490 |
| CXDC6578 | 3A DC/DC |
| CXDC6579 | high-freq 3A DC/DC |
| CXDC6580 | 1.5A DC/DC |
| CXDC6581 | 60V高压恒压恒流,替代AP1509,AP1507,XL7005 |
| CXDC6582 | 60V-30W-恒流-高精度亮度调节 |
| CXDC6583 | 55V高耐压5A |
| CXDC6584 | 90V降压恒压大电流 |
| CXDC6585 | 85V高耐压MOS内置 |
| CXDC6586 | 高压600V的恒流LED驱动IC |
| CXDC6587 | |
| CXDC6588 | |
| CXDC6589 | |
| CXDC6590 | |
| CXDC6591 | |
| CXDC6592 | |
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