WMSIC Electronic Components

HTC LM2576R-3.3

HTC LM2576R-3.3
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Product image

ModelLM2576R-3.3
PackageTO-263-5
BrandHTC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

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Technical data

Product details

19 specifications

Core information

Product name
HTC LM2576R-3.3
Type
HTC
Minimum package
800 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HTC
Electronic Component
LM2576R-3.3
Electronic Component
1
Package
TO-263-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
2.093g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0000003618
Operating Temperature
40℃~+125℃
Operating Voltage
40V
Switching Frequency
52kHz
Electronic Component
Electronic Component
Output Voltage
3.3V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

产品概述：LM2576R-3.3 降压型 DC-DC 电源芯片

一、产品简介

LM2576R-3.3 是一款功能强大的降压型 DC-DC 转换器，专门设计用于提供稳定的 3.3V 输出电压，最高输出电流可达 3A。该芯片由 HTC（走行电子）制造，采用 TO-263-5 封装，适用于多种应用场景，广泛应用于消费电子、工业控制、通信设备以及汽车电子等领域。

二、基本特性

  1. 输入电压范围：LM2576R-3.3 支持的输入电压范围为 4.0V 至 40V。这种宽输入电压范围使得它能够适应多种电池和电源的应用需求。

  2. 输出电压：该芯片的输出电压固定为 3.3V，精度高，有效满足大多数数字电路和无线通信设备的电源需求。

  3. 输出电流：LM2576R-3.3 最大可以提供 3A 的连续输出电流，适合高负载的应用场景。

  4. 效率：该芯片在设计时考虑了高效率，通常情况下，效率可达到 75% - 90%。这对于延长电池寿命和降低发热量至关重要。

  5. 保护特性：LM2576R-3.3 配备多种保护机制，包括过载保护、过热保护和短路保护，确保系统的可靠性和安全性。

三、应用场景

  1. 消费电子：LM2576R-3.3 常见于个人电脑、平板电脑和智能手机等设备中的电源管理。

  2. 工业控制：在工厂自动化、机器人控制等系统中，LM2576R-3.3 可用于为传感器、微控制器和执行器等提供稳定的电源。

  3. 通信设备：无线电、路由器和基站等通信设备需要可靠的电源，LM2576R-3.3 的高输出电流和高效率使其成为理想选择。

  4. 汽车电子：该芯片在汽车导航、车载娱乐和电子控制单元等领域得到应用，尤其在需要从车载电池中获取稳定电压的场合。

四、电路设计与开发

在应用 LM2576R-3.3 时，设计者需要确保其外围电路的正确性，以实现最佳性能。芯片只需少量外部组件即可完成设计，包括输入和输出电容、反馈电阻等。参考电路中，标准的设计安排确保了良好的瞬态响应和稳定性。

为了实现最佳的电源管理，设计者还需仔细选择输入和输出电容的容量与类型，一般推荐使用陶瓷或电解电容。合适的电感器也对于调整输出纹波十分重要，根据所需的输出电流选择合适规格的电感器，可以实现较小的输出纹波和更高的转换效率。

五、总结

LM2576R-3.3 降压型 DC-DC 电源芯片是一款高效、稳定、可靠的电源解决方案，满足现代电子设备对电源的多种需求。它的高输出电流、宽范围的输入电压、出色的效率和多重保护功能，使之成为广泛应用于各个行业的优选器件。无论是设计便携式设备还是进行工业设备的电源优化，LM2576R-3.3 都能为设计师提供极大的便利与支持。

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