行业组件数据 · 2026

电压调节器集成电路

Voltage Regulator IC is an integrated circuit that maintains a constant output voltage regardless of input voltage variations or load changes in power supply systems.

技术定义与适配语境
典型 电压调节器集成电路 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

A Voltage Regulator IC is a semiconductor device designed to automatically maintain a stable DC output voltage by comparing it with a reference voltage and adjusting the internal circuitry. It compensates for fluctuations in input voltage and changes in load current, ensuring consistent power delivery to sensitive electronic components. These ICs typically incorporate protection features like over-current, over-temperature, and short-circuit protection.

组件规格

定义
A Voltage Regulator IC is a semiconductor device designed to automatically maintain a stable DC output voltage by comparing it with a reference voltage and adjusting the internal circuitry. It compensates for fluctuations in input voltage and changes in load current, ensuring consistent power delivery to sensitive electronic components. These ICs typically incorporate protection features like over-current, over-temperature, and short-circuit protection.
工作原理
The working principle involves feedback control: a voltage reference (often bandgap) provides a stable reference voltage. The output voltage is sampled through a resistive divider and compared to this reference using an error amplifier. The amplified error signal drives a pass element (transistor) to adjust the output, maintaining regulation. Linear regulators dissipate excess voltage as heat, while switching regulators use pulse-width modulation (PWM) to efficiently step voltage up/down.
材料
Silicon semiconductor substrate with doped regionsaluminum or copper interconnectssilicon dioxide insulationplastic or ceramic packaging (e.g.TO-220SOT-23)lead framesand bonding wires.
Efficiency
Up to 95% (switching)
Package Type
TO-220, SOT-223, D2PAK
Output Current
Up to 5A
Output Voltage
Adjustable or fixed (e.g., 3.3V, 5V, 12V)
Dropout Voltage
0.5V to 2V (linear)
Input Voltage Range
4V to 40V
Operating Temperature
-40°C to 125°C
标准
ISO 9001IEC 60747JEDEC JESD22

行业分类与别名

电压调节器集成电路 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Excessive input voltage or transients->Internal breakdown leading to short circuit or open circuit->Use input protection circuits (TVS diodes, fuses) and adhere to maximum ratings
Inadequate heat sinking->Thermal shutdown or permanent damage from overheating->Ensure proper thermal design with heatsinks and adequate airflow

工业生态与工程逻辑

0
Overheating due to poor heat dissipation
1
Input voltage spikes damaging the IC
2
Electromagnetic interference (EMI) from switching regulators
3
Output voltage instability under rapid load changes

合规与检测

tolerance
Output voltage tolerance typically ±2% to ±5%
test method
Testing per IEC 60747 for electrical characteristics, thermal cycling, and environmental stress screening

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采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between linear and switching voltage regulator ICs?

Linear regulators are simple, low-noise but inefficient as they dissipate excess voltage as heat. Switching regulators are efficient (up to 95%) and handle wider voltage ranges but are more complex and generate electrical noise.

How do I select a Voltage Regulator IC for my application?

Consider input/output voltage ranges, current requirements, efficiency needs, thermal management, package size, and cost. For battery-powered devices, low dropout (LDO) linear regulators or switching regulators are preferred.

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URN:CNFX:ME:UNIT:VOLTAGE_REGULATOR_IC