Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 26V |
| Voltage-Output(Min/Fixed) | 2.7V |
| Voltage-Output(Max) | 29.5V |
| VoltageDropout(Max) | 0.6V @ 100mA |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 1 mA |
| Current-Supply(Max) | 6 mA |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Обзор
Description
The LM2931CDR2G is a low dropout (LDO) voltage regulator designed to provide a stable output voltage in applications where input voltages vary or where efficient power management is needed. Manufactured by ON Semiconductor, this device is part of the LM2931 series, noted for its low quiescent current and dropout voltage, typically around 60 mV at light loads. It offers an output current capability of up to 100 mA and features built-in protection against overcurrent and overtemperature conditions, enhancing reliability and safety in electronic circuits.
The device is available in a compact SOIC-8 package, making it suitable for space-constrained applications. It supports a wide input voltage range and provides fixed output voltage options, such as 5V. The LM2931CDR2G is particularly useful in automotive, industrial, and consumer electronics, where efficient power conversion and regulation are critical. Its robust design ensures effective performance under varying environmental conditions, making it a versatile component for designers seeking reliable voltage regulation with minimal power loss.
The device is available in a compact SOIC-8 package, making it suitable for space-constrained applications. It supports a wide input voltage range and provides fixed output voltage options, such as 5V. The LM2931CDR2G is particularly useful in automotive, industrial, and consumer electronics, where efficient power conversion and regulation are critical. Its robust design ensures effective performance under varying environmental conditions, making it a versatile component for designers seeking reliable voltage regulation with minimal power loss.
Equivalent
The LM2931CDR2G is a low dropout voltage regulator. Equivalent products include the LM2931 series from other manufacturers, such as the LM2931 from Texas Instruments or ON Semiconductor. Other similar regulators include the Microchip MCP1700, the LD1117 from STMicroelectronics, and the NCP1117 from ON Semiconductor. These provide similar voltage regulation capabilities but may have different package types or specific electrical characteristics, so it's important to check datasheets for compatibility.
Features
The LM2931CDR2G is a low dropout voltage regulator designed for a variety of applications. Key features include:
1. Low Dropout Voltage: It offers a low dropout capability of about 0.2V at 100mA load current, ensuring efficient performance even with low input-output voltage differentials.
2. Output Current Capability: It can deliver up to 100mA output current.
3. Wide Input Voltage Range: The device can handle a wide input voltage range, making it versatile for different power supply conditions.
4. Fixed Output Voltage: The regulator provides fixed output voltage options, typically around 5V, ensuring a stable and consistent output for your applications.
5. Low Quiescent Current: It features low quiescent current, which helps in minimizing power consumption, beneficial for battery-powered applications.
6. Protection Features: Built-in protection includes current limiting and thermal shutdown to prevent damage due to overload or excessive heat.
7. Operating Temperature Range: The device operates over a wide temperature range, ideal for automotive and industrial environments.
8. Stability: It requires only a small output capacitor for stability, which simplifies design and reduces space and cost.
1. Low Dropout Voltage: It offers a low dropout capability of about 0.2V at 100mA load current, ensuring efficient performance even with low input-output voltage differentials.
2. Output Current Capability: It can deliver up to 100mA output current.
3. Wide Input Voltage Range: The device can handle a wide input voltage range, making it versatile for different power supply conditions.
4. Fixed Output Voltage: The regulator provides fixed output voltage options, typically around 5V, ensuring a stable and consistent output for your applications.
5. Low Quiescent Current: It features low quiescent current, which helps in minimizing power consumption, beneficial for battery-powered applications.
6. Protection Features: Built-in protection includes current limiting and thermal shutdown to prevent damage due to overload or excessive heat.
7. Operating Temperature Range: The device operates over a wide temperature range, ideal for automotive and industrial environments.
8. Stability: It requires only a small output capacitor for stability, which simplifies design and reduces space and cost.
Pinout
The LM2931CDR2G is a 5-volt, low-dropout (LDO) voltage regulator. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The key functions and pin assignments are as follows:
1. Vout (Output Pin): Provides the regulated output voltage.
2. Vin (Input Pin): Connects to the unregulated input voltage.
3. GND (Ground Pin): Ground reference for the regulator.
4. Enable/Shutdown: Controls the regulator's output state (enable or disable).
5. Feedback (FB): Used in adjustable versions to set the output voltage.
6. Bypass/Capacitor: For attaching an external capacitor to improve transient response and noise performance.
7. NC (No Connect): Not internally connected, sometimes used for mechanical support.
8. Error Flag (Error): Indicates if the output is out of regulation.
These functions ensure stable voltage regulation with minimal dropout voltage, suitable for various applications like powering microcontrollers or other digital/analog circuits. Always refer to the manufacturer's datasheet for specific electrical characteristics and detailed pin configuration.
1. Vout (Output Pin): Provides the regulated output voltage.
2. Vin (Input Pin): Connects to the unregulated input voltage.
3. GND (Ground Pin): Ground reference for the regulator.
4. Enable/Shutdown: Controls the regulator's output state (enable or disable).
5. Feedback (FB): Used in adjustable versions to set the output voltage.
6. Bypass/Capacitor: For attaching an external capacitor to improve transient response and noise performance.
7. NC (No Connect): Not internally connected, sometimes used for mechanical support.
8. Error Flag (Error): Indicates if the output is out of regulation.
These functions ensure stable voltage regulation with minimal dropout voltage, suitable for various applications like powering microcontrollers or other digital/analog circuits. Always refer to the manufacturer's datasheet for specific electrical characteristics and detailed pin configuration.
Manufacturer
The LM2931CDR2G is manufactured by ON Semiconductor. ON Semiconductor is a global company that designs, manufactures, and supplies a wide range of semiconductor components. These components are used in various applications such as automotive, communication, computing, consumer electronics, and industrial systems. The company focuses on providing energy-efficient innovations to help its customers address challenges related to power management, automotive electronics, imaging and sensing, and wireless connectivity.
Application
The LM2931CDR2G is a low dropout voltage regulator commonly used in automotive electronics, battery-powered devices, and portable equipment. It is suitable for applications requiring efficient voltage regulation with minimal power loss. Key areas include powering microcontrollers, sensors, and other digital circuits within embedded systems. Its low dropout voltage and low quiescent current make it ideal for maintaining stable operation in systems with varying input voltages. Additionally, it is often used in telecommunications and industrial control systems, where reliable voltage regulation is crucial. Its robustness against voltage spikes and transient conditions also makes it suitable for harsher environments.
Package
The LM2931CDR2G is a low dropout voltage regulator, and it is typically available in a surface-mount package type known as SOIC-8 (Small Outline Integrated Circuit with 8 pins). This package is compact and designed for applications requiring efficient space utilization on printed circuit boards (PCBs).