Overview
The LM2931AZ-5.0G is a low dropout voltage regulator produced by onsemi. This device is part of the LM2931 series, which includes positive fixed and adjustable output voltage regulators. The LM2931AZ-5.0G is specifically designed to maintain proper regulation with an extremely low input-to-output voltage differential, making it ideal for battery-powered industrial and consumer equipment where extending battery life is crucial. It is also designed to withstand harsh automotive environments, offering protection against reverse battery connections, two-battery jump starts, and excessive line transients during load dump.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Continuous | 40 | Vdc |
| Transient Input Voltage (≤ 100 ms) | 60 | Vpk |
| Output Voltage (Fixed 5V Version) | 4.75 - 5.25 | V |
| Output Current | Exceeds 100 | mA |
| Bias Current (IO = 10 mA) | 0.4 - 1.0 | mA |
| 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 |
| Output Impedance | 200 | mΩ |
| Dropout Voltage (IO = 10 mA) | 0.015 - 0.2 | V |
| Operating Ambient Temperature Range | -40°C to +85°C | |
| Maximum Junction Temperature | 125°C |
Key Features
- Low input-to-output voltage differential (< 0.6 V @ 100 mA)
- Output current 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%) available
- AEC-Q100 qualified and PPAP capable for automotive applications
- Pb-free packages available
Applications
- Battery-powered consumer products
- Hand-held instruments
- Camcorders and cameras
- Automotive systems requiring robust voltage regulation
- Memory standby circuits and low power processor power supplies
Q & A
- What is the maximum input voltage for the LM2931AZ-5.0G?
The maximum continuous input voltage is 40 Vdc, and the transient input voltage can be up to 60 Vpk for ≤ 100 ms.
- What is the output voltage range for the fixed 5V version?
The output voltage range for the fixed 5V version is 4.75 V to 5.25 V.
- What is the maximum output current of the LM2931AZ-5.0G?
The LM2931AZ-5.0G can supply output currents in excess of 100 mA.
- Does the LM2931AZ-5.0G have built-in protection features?
Yes, it includes internal current limiting, thermal shutdown, 60 V load dump protection, and -50 V reverse transient protection.
- What packages are available for the LM2931 series?
The LM2931 series is available in TO-92, TO-220, DPAK, D2PAK, and SOIC-8 packages.
- Is the LM2931AZ-5.0G suitable for automotive applications?
Yes, it is designed to withstand harsh automotive environments and is AEC-Q100 qualified and PPAP capable.
- Can the LM2931AZ-5.0G be used in battery-powered devices?
Yes, it is ideally suited for battery-powered equipment due to its low dropout voltage and low bias current.
- What is the operating ambient temperature range for the LM2931AZ-5.0G?
The operating ambient temperature range is -40°C to +85°C.
- Does the LM2931AZ-5.0G have an output inhibit feature?
Yes, the adjustable output regulators feature an output inhibit pin.
- Is the LM2931AZ-5.0G Pb-free?
Yes, Pb-free packages are available for the LM2931 series.
