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HGSEMI LM2576S-12/TR LM2576S
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HGSEMI LM2576S-12 / TR
- Type
- TO-263-5
- Minimum package
- 500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HGSEMI
- Electronic Component
- LM2576S-12/TR
- Electronic Component
- 1
- Package
- TO-263-5
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 1.6g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0226047426
- Operating Temperature
- 40℃~+125℃@(TJ)
- Operating Voltage
- 15V~40V
- Switching Frequency
- 52kHz
- Electronic Component
- Electronic Component
- Output Voltage
- 12V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LM2576S-12/TR 产品概述
概要
LM2576S-12/TR 是一款由华冠（HGSEMI）生产的高性能 DC-DC 电源芯片，属于降压型转换器系列。该芯片设计用于广泛的工业和消费电子应用，特别适合需要高效、可靠和紧凑的电源解决方案的场景。
基础参数
- 功能类型: 降压型
- 同步整流: 否
- 商品分类: DC-DC 电源芯片
- 工作温度: -40℃ ~ +125℃ @(TJ)
- 开关管: 内置
- 开关频率: 52 kHz
- 拓扑结构: 降压式
- 输入电压范围: 15V ~ 40V
- 输出电压: 12V
- 输出电流: 3A
- 输出通道数: 1
封装和品牌
- 品牌: 华冠（HGSEMI）
- 封装: TO-263-5
主要特性
高效能和低损耗
LM2576S-12/TR 采用高效能的降压转换拓扑结构，确保在整个输入电压范围内都能实现高效率的能量转换。这种设计不仅减少了热量产生，还提高了系统的整体可靠性。
宽输入电压范围
该芯片支持 15V 到 40V 的宽输入电压范围，使其适用于各种不同的应用场景，从汽车电子到工业控制系统。这种灵活性使得设计工程师可以更容易地选择合适的电源解决方案。
固定输出电压和高输出电流
LM2576S-12/TR 提供固定 12V 输出电压和高达 3A 的输出电流，这使得它非常适合驱动高功率负载，如大型微控制器、通信设备、LED 照明系统等。
内置开关管
该芯片内置高性能开关管，这简化了外部组件的选择和布局，同时减少了 PCB 布局空间。内置开关管还提高了系统的整体可靠性和稳定性。
低噪声和低EMI
LM2576S-12/TR 采用 52 kHz 的固定开关频率，这有助于减少噪声和电磁干扰（EMI），使其更适合需要低噪声和低EMI的应用。
应用场景
汽车电子系统
由于其宽输入电压范围和高工作温度，LM2576S-12/TR 非常适合用于汽车电子系统，如仪表盘、娱乐系统、安全系统等。
工业控制系统
在工业控制系统中，LM2576S-12/TR 可以提供稳定的 12V 电源，用于驱动 PLC、传感器、执行器等设备。
通信设备
通信设备如基站、路由器、交换机等需要高效、可靠的电源供应。LM2576S-12/TR 的高效能和低噪声特性使其成为这些应用的理想选择。
LED 照明系统
LED 照明系统需要稳定且高效的电源供应。LM2576S-12/TR 可以提供高达 3A 的输出电流，满足大型 LED 照明系统的需求。
设计和使用建议
输入滤波
为了确保稳定的输入电压，建议在输入端添加适当的滤波电容和电感，以减少噪声和纹波。
输出滤波
在输出端使用适当的滤波电容和电感，以确保输出电压的稳定性和低纹波。
热管理
由于 LM2576S-12/TR 支持高达 +125℃ 的工作温度，但在高负载条件下仍需要进行适当的热管理。建议使用散热片或其他冷却措施来保持芯片温度在安全范围内。
PCB 布局
在 PCB 布局中，应尽量减少信号路径上的电感和电容，以避免可能引起的振荡或不稳定现象。
总结
LM2576S-12/TR 是一款功能强大、性能优异的 DC-DC 电源芯片，适用于各种需要高效、可靠和紧凑电源解决方案的应用场景。其宽输入电压范围、固定输出电压、高输出电流以及内置开关管等特性，使其成为设计工程师的首选产品。通过遵循适当的设计和使用建议，可以充分发挥该芯片的性能优势，实现高效、稳定的电源系统。
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