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L4949ED
+物料清單IC REG LINEAR 5V 100MA 8-SOIC
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製造商意法半導體
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製造商部分 #L4949ED
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規格
| 屬性 | 價值 |
| Part Status | Obsolete |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 28V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage Dropout (Max) | 0.5V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 300 µA |
| Control Features | Reset Output |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | L4949 |
| Current - Supply (Max) | 5 mA |
概述
Description
The L4949ED typically supports multiple output voltages, allowing for flexibility in design. It also incorporates protection features such as thermal shutdown and current limiting, ensuring reliable operation under varying conditions. This component is often used in telecommunications, consumer electronics, and automotive applications, where power integrity is crucial.
Engineers appreciate the L4949ED for its compact footprint and ease of integration into existing designs. Its performance characteristics and robust features make it a popular choice for projects requiring reliable voltage regulation.
Equivalent
Features
1. High Efficiency: It provides efficient power conversion, minimizing energy loss and heat generation.
2. Multiple Output Channels: It typically supports multiple output voltages, allowing for flexible power supply configurations.
3. Integrated Protection: Features such as over-voltage, over-current, and thermal protection enhance reliability and safety.
4. Low Quiescent Current: Ensures minimal power consumption in standby mode, extending battery life in portable applications.
5. Adjustable Output Voltage: Enables customization of output voltage levels as per application requirements.
6. Small Form Factor: Compact packaging facilitates easy integration into space-constrained designs.
Overall, the L4949ED is ideal for applications requiring efficient and reliable power management solutions.
Pinout
1. Pin 1 (Input): Connects to the input voltage supply.
2. Pin 2 (Ground): Common ground connection.
3. Pin 3 (Output): Provides the regulated output voltage.
4. Pin 4 (Not connected): Not internally connected, can be left floating.
5. Pin 5 (Feedback): Used for voltage feedback to maintain output regulation.
6. Pin 6 (Compensate): Connects to a capacitor for stability and compensation.
7. Pin 7 (Thermal Protection): Monitors temperature to prevent overheating.
8. Pin 8 (Enable/Disable): Used to enable or disable the regulator.
This IC is commonly used in power supply applications for its reliable voltage regulation and low dropout performance.
Manufacturer
The L4949ED specifically is a voltage regulator, often used in various electronic applications to provide stable voltage levels. STMicroelectronics is known for its innovation in the semiconductor industry, contributing to advancements in technology across multiple fields, including automotive electronics, IoT devices, and consumer electronics. The company emphasizes sustainability and energy efficiency in its product development.
Application
1. Power Supply Regulation: It provides stable voltage outputs for automotive electronics.
2. Battery Management Systems: It helps in monitoring and managing battery performance.
3. Sensor Powering: It powers various sensors in vehicles, ensuring consistent operation.
4. Microcontroller Supply: It supplies power to automotive microcontrollers and other critical components.
5. LED Lighting: It's used in regulating voltage for automotive LED lighting systems.
Overall, the L4949ED is essential for reliable power management in modern vehicles.