Overview
The LM2931ADT50RY is a Linear Voltage Regulator IC produced by STMicroelectronics. This device is designed for general-purpose applications, particularly in automotive systems that require AEC-Q100 compliance. It features a fixed positive output voltage of 5V and is known for its low dropout voltage, high power supply rejection ratio (PSRR), and robust protection mechanisms. Although the product is now obsolete, it remains a reliable choice for existing designs and legacy systems.
Key Specifications
| Feature | Specification |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Output Type | Fixed |
| Output Voltage (Min/Fixed) | 5V |
| Output Current | 100mA |
| Voltage Dropout (Max) | 0.6V @ 100mA |
| Voltage - Input (Max) | 26V |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| PSRR | 75dB (120Hz) |
| Protection Features | Current Limit, Thermal Shutdown |
| Mounting Type | Surface Mount |
| AEC-Q100 Qualified | Yes |
| Product Status | Obsolete |
Key Features
- Positive fixed output voltage of 5V
- Low dropout voltage of 0.6V at 100mA
- High power supply rejection ratio (PSRR) of 75dB at 120Hz
- Thermal shutdown protection and current limit for overcurrent protection
- Compact DPAK package
- AEC-Q100 compliance for automotive applications
- Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel formats
Applications
- Automotive systems requiring AEC-Q100 compliance
- General-purpose applications that require a stable and efficient voltage supply
- Systems where low dropout voltage is critical
Q & A
- What is the output voltage of the LM2931ADT50RY?
The output voltage is fixed at 5V.
- What is the maximum input voltage for the LM2931ADT50RY?
The maximum input voltage is 26V.
- What is the dropout voltage of the LM2931ADT50RY at 100mA?
The dropout voltage is 0.6V at 100mA.
- What protection features does the LM2931ADT50RY have?
The device features current limit and thermal shutdown protection.
- Is the LM2931ADT50RY AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified.
- What is the operating temperature range of the LM2931ADT50RY?
The operating temperature range is -40°C to 125°C (TJ).
- What package types are available for the LM2931ADT50RY?
The device is available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel formats.
- What is the PSRR of the LM2931ADT50RY at 120Hz?
The PSRR is 75dB at 120Hz.
- Is the LM2931ADT50RY still in production?
No, the product is obsolete.
- What mounting type does the LM2931ADT50RY use?
The device uses surface mount technology.
