Overview
The LM2931AD-5.0R2G is a linear low-dropout (LDO) voltage regulator from onsemi, designed to provide stable and reliable voltage regulation in various applications. This device is part of the LM2931 series, which includes both fixed and adjustable output voltage regulators. The LM2931AD-5.0R2G is specifically configured to deliver a fixed output voltage of 5.0V and is capable of supplying output currents up to 100 mA. It is engineered to withstand harsh environments, particularly in automotive and industrial settings, with features such as load dump protection, reverse transient protection, and thermal shutdown.
Key Specifications
| Parameter | Min | Typ | Max |
|---|---|---|---|
| Output Voltage (VO) | 4.75 V | 5.0 V | 5.25 V |
| Input Voltage Range | 6.0 V | 26 V | |
| Output Current (IO) | 100 mA | ||
| Line Regulation (Regline) | -4.0 mV | 10 mV | 30 mV |
| Load Regulation (Regload) | -14 mV | 50 mV | |
| Bias Current (IB) | 0.4 mA | 1.0 mA | |
| Dropout Voltage (VI-VO) | 0.015 V | 0.6 V | |
| Over-Voltage Shutdown Threshold (Vth(OV)) | 26 V | 29.5 V | 40 V |
| Load Dump Protection | 60 V | ||
| Reverse Transient Protection | -50 V |
Key Features
- Low input-to-output voltage differential of less than 0.6 V at 100 mA output current.
- 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 and thermal shutdown.
- Temporary mirror-image protection.
- Output inhibit pin for adjustable output regulators, useful in microprocessor-based systems.
- Low dropout voltage and low bias current, ideal for extending battery life in battery-powered equipment.
Applications
The LM2931AD-5.0R2G is designed for use in harsh environments, particularly in automotive and industrial applications. It is suitable for:
- Automotive systems requiring load dump protection and reverse transient protection.
- Battery-powered industrial and consumer equipment where extending battery life is crucial.
- Microprocessor-based systems that benefit from the output inhibit feature.
- Any application requiring stable and reliable voltage regulation with low dropout voltage.
Q & A
- What is the output voltage of the LM2931AD-5.0R2G?
The output voltage of the LM2931AD-5.0R2G is fixed at 5.0 V.
- What is the maximum output current of the LM2931AD-5.0R2G?
The maximum output current is 100 mA.
- What is the input voltage range for the LM2931AD-5.0R2G?
The input voltage range is from 6.0 V to 26 V.
- Does the LM2931AD-5.0R2G have load dump protection?
- What is the bias current of the LM2931AD-5.0R2G at 10 mA output?
The bias current is 0.4 mA at 10 mA output.
- Can the LM2931AD-5.0R2G be used in microprocessor-based systems?
- What is the dropout voltage of the LM2931AD-5.0R2G?
The dropout voltage is less than 0.6 V at 100 mA output current.
- Does the LM2931AD-5.0R2G have thermal shutdown protection?
- What is the reverse transient protection of the LM2931AD-5.0R2G?
- Can the LM2931AD-5.0R2G be used to extend battery life in battery-powered equipment?
