Overview
The L4938ED013TR is a dual-output, low-dropout (LDO) linear voltage regulator produced by STMicroelectronics. Designed to provide stable and well-regulated output voltages from a wide range of input voltages, this regulator is suitable for various power management applications. It features adjustable output voltages and high power supply rejection ratio (PSRR), making it versatile for different electronic systems. However, it is important to note that the L4938ED013TR is an obsolete product, and users are advised to seek equivalent or alternative models for new designs.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Number of Pins | 20 |
| Operating Temperature | -40°C ~ 150°C |
| Input Voltage Range | Up to 28V (Min: 6V) |
| Output Voltage | Adjustable from 4.9V to 5.1V (Fixed: 5V) |
| Output Current | 100mA and 400mA |
| Voltage Dropout (Max) | 0.4V @ 100mA, 0.6V @ 400mA |
| Quiescent Current | 20mA |
| Control Features | Enable, Reset |
| Protection Features | Overtemperature protection, ESD and latch-up protection |
| Power Dissipation | 875mW |
| Output Voltage Accuracy | 2% |
Key Features
- Dual-output LDO voltage regulator with adjustable output voltages.
- Wide input voltage range up to 28V.
- Low voltage dropout: 0.4V @ 100mA, 0.6V @ 400mA.
- High power supply rejection ratio (PSRR).
- Enable and reset control features.
- Overtemperature protection and ESD/latch-up protection.
- Compact surface-mount package (20-SOIC) for space-saving designs.
- Efficient power management with low power consumption.
Applications
- Portable electronics.
- Industrial control systems.
- Automotive electronics.
- Communication equipment.
- Medical devices.
- Digital audio players and digital TVs.
- Smartcard systems.
Q & A
- What is the L4938ED013TR?
The L4938ED013TR is a dual-output, low-dropout (LDO) linear voltage regulator from STMicroelectronics.
- What is the input voltage range of the L4938ED013TR?
The input voltage range is up to 28V, with a minimum input voltage of 6V.
- What are the output voltages and currents of the L4938ED013TR?
The output voltages are adjustable from 4.9V to 5.1V, with fixed output at 5V. The output currents are 100mA and 400mA.
- What are the key control features of the L4938ED013TR?
The key control features include enable and reset functions.
- What protection features does the L4938ED013TR have?
The L4938ED013TR includes overtemperature protection, ESD protection, and latch-up protection.
- What is the operating temperature range of the L4938ED013TR?
The operating temperature range is -40°C to 150°C.
- What is the package type of the L4938ED013TR?
The package type is 20-SOIC (0.295", 7.50mm Width).
- Is the L4938ED013TR still in production?
No, the L4938ED013TR is an obsolete product. Users are advised to seek equivalent or alternative models for new designs.
- What are some common applications of the L4938ED013TR?
Common applications include portable electronics, industrial control systems, automotive electronics, communication equipment, and medical devices.
- What is the power dissipation of the L4938ED013TR?
The power dissipation is 875mW.
