意法半导体简单、高效、灵活的1A降压转换器为智能电表、家用电器和工业转换器中的低压负载供电

Simple, efficient, flexible 1A buck converter powers low-voltage loads in smart meters, home appliances and industrial converters

简单、高效、灵活的1A降压转换器为智能电表、家用电器和工业转换器中的低压负载供电

ST’s DCP3601 miniature monolithic buck converter combines extensive feature integration and flexibility, enabling simple, low-BOM designs to achieve high conversion efficiency. The power switches and compensation are built-in, requiring only six components to complete the circuit, including the inductor, bootstrap and filter capacitors, and feedback resistors for setting the output voltage.

意法半导体的DCP3601微型单片降压转换器结合了广泛的功能集成性和灵活性，实现了简单、低材料成本的设计，以实现高转换效率。其内置电源开关和补偿，只需六个组件即可完成电路，包括电感器、自举和滤波电容器，以及用于设置输出电压的反馈电阻器。

With its 3.3V-to-36V input voltage range and 1A output capability, the DCP3601 can power low-voltage loads in applications such as smart meters, domestic appliances, and industrial 24V conversion. Synchronous rectification and a fixed switching frequency of 1MHz ensure high efficiency across the load range and under all operating conditions, reaching 91% at 600mA with 12V input and 5V output.

凭借其3.3V至36V的输入电压范围和1A的输出能力，DCP3601可为智能电表、家用电器和工业24V转换等应用中的低压负载供电。同步整流和1MHz的固定开关频率确保了在负载范围内和所有操作条件下的高效率，在12V输入和5V输出的600mA条件下达到91%。

Flexibility comes from the selection of different variants, offering the choice of forced-PWM operation for noise-sensitive applications or pulse-skipping at light load for minimal power consumption. Additionally, both the low-noise and low-consumption variants are available with frequency dithering to reduce noise power at the 1MHz switching frequency. All variants have extremely low quiescent current of 110µA and an Enable pin that allows turning off the converter with a dedicated signal to maximize power savings.

其丰富的变体保证了灵活性，可为噪声敏感应用提供强制PWM操作，或在轻载下跳过脉冲以实现低功耗。此外，低噪声和低功耗变体均可通过频率抖动来降低1MHz开关频率下的噪声功率。所有变体均具有110µA的极低静态电流和使能引脚，以便通过专用信号关闭转换器，从而有效节省功耗。

Designers can quickly start new projects with the DCP3601 using the dedicated evaluation board, STEVAL-3601CV1. The board comes with screw terminals and headers and is ready to power-up out of the box, demonstrating an efficient circuit design with a compact footprint.

设计者可借助专用评估板STEVAL-3601CV1，利用DCP3601来快速启动新项目。该板配有螺丝端子和接头，开箱即用，具备高效的电路设计和紧凑的外形尺寸。

First in the new buck-converter product family that will expand throughout the year, the DCP3601 is included in ST’s 10-year longevity program that ensures long-term access to components and support. Packaged as a 3mm x 1.6mm SOT23 6-lead device, the single-chip buck converter is priced from $0.48 for orders of 1000 pieces.

对于全年扩展的新型降压转换器产品系列，DCP3601是该系列的首款产品。为确保用户能够长期获得组件和支持，该产品已被纳入意法半导体的10年长期供货计划。单芯片降压转换器采用3mm x 1.6mm SOT23 6引脚封装；千片起订单价0.48美元。