Overview
The LM2931AD-5.0G, produced by onsemi, is a part of the LM2931 series of positive fixed and adjustable output low dropout (LDO) linear voltage regulators. These regulators are designed to maintain proper regulation with an extremely low input-to-output voltage differential, making them ideal for applications requiring high efficiency and stability. The LM2931 series is particularly suited for harsh environments, such as automotive and battery-powered industrial and consumer equipment, where extended battery life is crucial.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage (Continuous) | 40 | Vdc |
| Transient Input Voltage (≤ 100 ms) | 60 | Vpk |
| Output Current | 100 | mA |
| Output Voltage (Fixed, Vin = 14 V, IO = 10 mA, TA = 25°C) | 4.75 - 5.25 | V |
| Line Regulation (Vin = 9.0 V to 16 V) | -2.0 to 10 | mV |
| Load Regulation (IO = 5.0 mA to 100 mA) | -14 to 50 | mV |
| Bias Current (Vin = 14 V, IO = 100 mA, TA = 25°C) | 0.4 - 1.0 | mA |
| Dropout Voltage (IO = 100 mA) | 0.16 - 0.6 | V |
| Over-Voltage Shutdown Threshold | 26 - 40 | V |
| Reverse Transient Protection | -50 | V |
| Load Dump Protection | 60 | V |
| Internal Current Limiting with Thermal Shutdown | Yes |
Key Features
- Low input-to-output voltage differential (< 0.6 V @ 100 mA)
- High output current capability (in excess of 100 mA)
- Low bias current (0.4 mA at 10 mA output)
- 60 V load dump protection and -50 V reverse transient protection
- Internal current limiting with thermal shutdown
- Temporary mirror-image protection
- Output inhibit pin (for adjustable output regulators)
- High accuracy reference (±2.5% for LM2931AC)
- AEC-Q100 qualified and PPAP capable for automotive applications
- Pb-free packages available
- Economical 5-lead TO-220 package and surface mount options (SOP-8, D2PAK, DPAK)
Applications
- Battery-powered consumer products
- Hand-held instruments
- Camcorders and cameras
- Automotive systems requiring robust voltage regulation
- Industrial and consumer equipment where extended battery life is desirable
Q & A
- What is the maximum input voltage for the LM2931AD-5.0G?
The maximum continuous input voltage is 40 Vdc, with transient input voltage up to 60 Vpk for ≤ 100 ms.
- What is the output current capability of the LM2931AD-5.0G?
The device can supply output currents in excess of 100 mA.
- What is the dropout voltage for the LM2931AD-5.0G at 100 mA output current?
The dropout voltage is between 0.16 V and 0.6 V at 100 mA output current.
- Does the LM2931AD-5.0G have built-in protection features?
Yes, it includes 60 V load dump protection, -50 V reverse transient protection, internal current limiting, and thermal shutdown.
- What are the package options available for the LM2931AD-5.0G?
The device is available in 5-lead TO-220, SOP-8, D2PAK, and DPAK packages.
- Is the LM2931AD-5.0G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive applications.
- What is the bias current of the LM2931AD-5.0G at 10 mA output?
The bias current is between 0.4 mA and 1.0 mA at 10 mA output.
- Does the LM2931AD-5.0G have an output inhibit feature?
Yes, the adjustable output regulators feature an output inhibit pin.
- What is the line regulation of the LM2931AD-5.0G?
The line regulation is between -2.0 mV and 10 mV for Vin = 9.0 V to 16 V.
- Is the LM2931AD-5.0G Pb-free?
Yes, Pb-free packages are available).
