Overview
The NCV2931AZ-5.0G is a positive fixed output low dropout (LDO) linear voltage regulator produced by Onsemi. This device is part of the LM2931 series, designed to maintain proper regulation with an extremely low input-to-output voltage differential. It is capable of supplying output currents in excess of 100 mA and features a low bias current, making it ideal for battery-powered equipment where extending the useful battery life is crucial. The NCV2931AZ-5.0G is particularly suited for harsh environments, such as automotive applications, and includes protective features like internal current limiting, thermal shutdown, and temporary power-up with mirror-image insertion.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Continuous | VI | - | - | 40 | Vdc |
| Transient Input Voltage | VI(τ) | - | - | 60 | Vpk |
| Transient Reverse Polarity Input Voltage | -VI(τ) | -50 | - | - | Vpk |
| Output Voltage | VO | 4.75 | 5.0 | 5.25 | V |
| Line Regulation | Regline | - | 2.0 | 10 | mV |
| Load Regulation | Regload | - | 14 | 50 | mV |
| Bias Current | IB | - | 5.8 | 30 | mA |
| Dropout Voltage | VI-VO | - | 0.16 | 0.6 | V |
| Output Noise Voltage | Vn | - | 700 | - | μVrms |
| Ripple Rejection Ratio | RR | 60 | 90 | - | dB |
Key Features
- Input-to-Output Voltage Differential of < 0.6 V @ 100 mA
- Output Current in Excess of 100 mA
- Low Bias Current
- 60 V Load Dump Protection
- -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, DPAK, and D2PAK Packages
- High Accuracy (+/-2.5%) Reference (LM2931AC) Available
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- Pb-Free Packages are Available
Applications
- Battery Powered Consumer Products
- Hand-held Instruments
- Camcorders and Cameras
- Automotive Applications
Q & A
- What is the maximum input voltage for the NCV2931AZ-5.0G? The maximum input voltage is 40 Vdc.
- What is the output voltage range for the NCV2931AZ-5.0G? The output voltage is fixed at 5.0 V with a tolerance of +/-3.8%.
- What is the maximum output current of the NCV2931AZ-5.0G? The device can supply output currents in excess of 100 mA.
- What kind of protection does the NCV2931AZ-5.0G offer? It offers 60 V load dump protection, -50 V reverse transient protection, internal current limiting, and thermal shutdown.
- Is the NCV2931AZ-5.0G suitable for automotive applications? Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other harsh environments.
- What package types are available for the NCV2931AZ-5.0G? It is available in TO-92, TO-220, SOP-8, DPAK, and D2PAK packages.
- Does the NCV2931AZ-5.0G have an inhibit pin? The 'C' suffix adjustable output regulators in the series feature an output inhibit pin, but the NCV2931AZ-5.0G is a fixed output regulator and does not have this feature.
- What is the dropout voltage for the NCV2931AZ-5.0G? The dropout voltage is between 0.16 V to 0.6 V at 100 mA output current.
- Is the NCV2931AZ-5.0G Pb-free? Yes, Pb-free packages are available.
- What is the ripple rejection ratio of the NCV2931AZ-5.0G? The ripple rejection ratio is between 60 dB to 90 dB.
