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HTC LM1117RS-3.3
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- HTC LM1117RS-3.3
- Type
- HTC
- Unit
- Electronic Component
- Minimum package
- 2500
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- 1.2V@(1A)
- Electronic Component
- HTC
- Electronic Component
- 100uV
- Electronic Component
- LM1117RS-3.3
- Electronic Component
- 1
- Package
- TO-252
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.468g
- Electronic Component
- 1
- Electronic Component
- BM0000000812
- Operating Temperature
- 40℃~+125℃@(Tj)
- Operating Voltage
- 12V
- Output
- 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.
LM1117RS-3.3 产品概述
一、产品简介
LM1117RS-3.3 是一款稳压器，属于线性低压差（LDO）系列，固定输出电压为 3.3V，最大输出电流可达 1A。这款稳压器采用 TO-252 (DPAK) 封装，结合了优越的电源管理特性，广泛应用于各种电子设备中，如计算机、通信设备、消费电子及工业应用。
二、主要特点
- 固定输出电压：LM1117RS-3.3 提供稳定的 3.3V 输出，适合需要精确电压的设备。
- 低压差：具有典型的低压差特性，能够在输入电压与输出电压仅差 1.2V 时仍维持良好的输出稳定性，适应多种应用场景。
- 高输出电流能力：支持最大输出电流为 1A，能够为大部分常用负载提供足够的电流，满足高性能应用的需求。
- 内置过流和过热保护：保证了设备在不正常工作条件下的安全性，提高产品的可靠性和使用寿命。
- 宽输入电压范围：其输入电压范围一般在 4.75V 到 15V之间，使其能在多种场景中稳定工作。
- 良好的瞬态响应：具备较快的瞬态响应特性，适合高频应用和负载快速变化的场合。
三、应用领域
LM1117RS-3.3 由于其卓越的性能，适用于多种电子学领域：
- 计算机：适用于笔记本电脑、台式机等产品的电源管理。
- 通信设备：为移动电话、无线电通信设备提供稳定的电源支持。
- 消费电子：广泛应用于家电、便携式游戏机、音频设备等。
- 工业控制：用于各种工业控制设备，提供稳定的电源输入。
- 汽车应用：可用于车载电子系统，为传感器和控制单元提供稳压电源。
四、工作原理
线性稳压器通过将输入电压降至所需的输出电压来工作。LM1117RS-3.3 内部使用电流源和反馈机制来监控输出电压。通过调整电流源的输出，及时补偿负载变化，使输出电压保持在 3.3V 的目标值。通过内部的误差放大器，LM1117 能够确保即使在负载变化或输入电压波动时，输出电压也不会大幅度改变。
线性稳压器的优点在于其电路相对简单、不会产生脉动（Ripple）噪声，且成本较低。但其效率直接与输入电压和输出电压之间的差额相关，输入电压越高，工作效率可能越低，因此选择输入电压时需要考虑到这一点。
五、环境和热管理
由于 LM1117RS-3.3 工作时会产生一定的热量，因此在设计电路板时，特别是在承载高负载电流时，需考虑良好的散热设计。较大的散热面积可以有效地增加器件的可靠性和稳定性。此外，对 PCB 布局的注意，避免不必要的热脆弱区域也是非常重要的。
六、总结
LM1117RS-3.3 是一款稳定且高效的线性稳压器，凭借其优良的电源管理性能和广泛的应用范围，已成为电子设计中的热门选择。 适用于要求高输出电流、低压差和多种输入电压的各种设备，是设计和构建现代电子设备时的一项重要工具，为系统提供了安全、可靠的电源解决方案。
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