Overview
The NCV2931AST-5T3G is a part of the LM2931/NCV2931 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 industrial and consumer equipment. The NCV2931AST-5T3G is specifically tailored for automotive and other harsh environments, offering robust protection against various fault conditions such as reverse battery connection, two-battery jump starts, and excessive line transients during load dump.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Continuous | VI | - | - | 40 | Vdc |
| Transient Input Voltage (≤ 100 ms) | VI(τ) | - | - | 60 | Vpk |
| Output Current | IO | - | - | 100 | mA |
| Output Voltage (Fixed, Vin = 14 V, IO = 10 mA) | VO | 4.75 | 5.0 | 5.25 | V |
| Line Regulation (Vin = 9.0 V to 16 V) | Regline | -2.0 | 10 | -2.0 | mV |
| Load Regulation (IO = 5.0 mA to 100 mA) | Regload | -14 | 50 | -14 | mV |
| Bias Current (Vin = 14 V, IO = 100 mA) | IB | -5.8 | 30 | -5.8 | mA |
| Dropout Voltage (IO = 100 mA) | VI-VO | 0.16 | 0.6 | - | V |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C |
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
- Output inhibit pin for adjustable output regulators
- Ideally suited for battery-powered equipment
- Economical 5-lead TO-220 package with 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
Applications
- Battery-powered consumer products
- Hand-held instruments
- Camcorders and cameras
- Automotive systems requiring robust voltage regulation and protection
Q & A
- What is the maximum input voltage for the NCV2931AST-5T3G? 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 current capability of the NCV2931AST-5T3G? The device can supply output currents in excess of 100 mA.
- What is the dropout voltage for the NCV2931AST-5T3G at 100 mA output current? The dropout voltage is typically 0.16 V to 0.6 V.
- Does the NCV2931AST-5T3G 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 operating temperature ranges for the NCV2931AST-5T3G? The operating ambient temperature range is -40°C to +125°C, and the storage temperature range is -65°C to +150°C.
- Is the NCV2931AST-5T3G suitable for automotive applications? Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other harsh environments.
- What package options are available for the NCV2931AST-5T3G? It is available in surface mount SOT-223 packages.
- Does the NCV2931AST-5T3G have an output inhibit feature? Yes, the adjustable output regulators feature an output inhibit pin.
- What is the bias current of the NCV2931AST-5T3G at 10 mA output? The bias current is typically 0.4 mA.
- How accurate is the reference voltage for the NCV2931AST-5T3G? The high accuracy reference is available with ±2.5% tolerance.
