ADVANCED VOLTAGE REGULATOR The part **L4938ED** is manufactured by **STMicroelectronics (ST)**. Below are the specifications, descriptions, and features based on available factual information:
### **Specifications:**
- **Type:** Low-dropout (LDO) voltage regulator
- **Output Voltage:** Adjustable (1.25V to 20V) or fixed versions available
- **Output Current:** Up to 500mA
- **Dropout Voltage:** Typically 0.4V at full load
- **Input Voltage Range:** Up to 28V
- **Quiescent Current:** Low (typically 1mA in operation, reduced in standby mode)
- **Package:** DPAK (TO-252) or other surface-mount packages
- **Protections:**
- Short-circuit protection
- Thermal shutdown
- Reverse polarity protection
### **Descriptions:**
The **L4938ED** is a low-dropout voltage regulator designed for automotive and industrial applications. It provides stable voltage regulation with low power dissipation and includes built-in protection features for reliability in harsh environments.
### **Features:**
- **Wide Input Voltage Range:** Supports up to 28V input.
- **Adjustable or Fixed Output:** Available in adjustable or fixed voltage options.
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.
- **Low Quiescent Current:** Reduces power consumption in standby mode.
- **Robust Protections:** Includes thermal shutdown, short-circuit, and reverse polarity protection.
- **Automotive-Grade:** Suitable for automotive applications requiring high reliability.
For exact details, refer to the official **STMicroelectronics datasheet** for the **L4938ED**.
