Overview
The LM2931DT-5.0G is a part of the LM2931 series of voltage regulators produced by onsemi. These regulators are designed to provide stable output voltage with a low input-to-output voltage differential, making them ideal for battery-powered equipment and harsh automotive environments. The LM2931DT-5.0G is a fixed output voltage regulator with a specified output voltage of 5.0V. It features internal current limiting, thermal shutdown, and protection against load dump and reverse transient conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage (Continuous) | 40 | Vdc |
| Transient Input Voltage (≤ 100 ms) | 60 | Vpk |
| Output Voltage | 5.0 | V |
| Output Current | > 100 | mA |
| Bias Current | 0.4 - 1.0 | mA |
| Dropout Voltage | 0.015 - 0.6 | V |
| Line Regulation | -2.0 to 10 | mV |
| Load Regulation | -14 to 50 | mV |
| Operating Ambient Temperature Range | -40 to +125 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Thermal Resistance, Junction-to-Case | 5.0 | °C/W |
| Thermal Resistance, Junction-to-Ambient | 70 | °C/W |
Key Features
- Low input-to-output voltage differential of < 0.6 V @ 100 mA
- Output current in excess of 100 mA
- Low bias current of 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
- Ideally suited for battery-powered equipment
- Economical 5-lead TO-220 package with two optional leadforms
- Available in surface mount SOP-8, D2PAK, and DPAK packages
- High accuracy (±2.5%) reference 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
- Industrial and consumer equipment where extended battery life is desirable
Q & A
- What is the maximum input voltage for the LM2931DT-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 of the LM2931DT-5.0G?
The output voltage is fixed at 5.0 V.
- What is the maximum output current of the LM2931DT-5.0G?
The device can supply output currents in excess of 100 mA.
- What are the key protection features of the LM2931DT-5.0G?
The device features 60 V load dump protection, -50 V reverse transient protection, internal current limiting, and thermal shutdown.
- What are the typical operating temperature ranges for the LM2931DT-5.0G?
The operating ambient temperature range is -40 to +125 °C, and the storage temperature range is -65 to +150 °C.
- What packages are available for the LM2931DT-5.0G?
The device is available in 5-lead TO-220, surface mount SOP-8, D2PAK, and DPAK packages.
- Is the LM2931DT-5.0G suitable for automotive applications?
Yes, the device is AEC-Q100 qualified and PPAP capable, making it suitable for automotive applications.
- What is the dropout voltage of the LM2931DT-5.0G?
The dropout voltage ranges from 0.015 V to 0.6 V depending on the output current.
- How does the LM2931DT-5.0G protect against short circuits?
The device includes internal current limiting and thermal shutdown to protect against short circuits.
- Can the LM2931DT-5.0G be used in battery-powered equipment?
Yes, the device is ideally suited for battery-powered equipment due to its low bias current and low dropout voltage.
