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MC34268DR2 from MOTORML,Motorola

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MC34268DR2

Manufacturer: MOTORML, ON

800mA, 2.85, SCSI-2 Active Terminator, Low Dropout Voltage Regulator

Partnumber Manufacturer Quantity Availability
MC34268DR2 MOTORML, ON 1299 In Stock

Description and Introduction

800mA, 2.85, SCSI-2 Active Terminator, Low Dropout Voltage Regulator **Enhance Your Power Management with the MC34268DR2 Voltage Regulator**  

In today’s fast-evolving electronics landscape, efficient power management is critical for ensuring reliable performance in a wide range of applications. The **MC34268DR2**, a high-performance voltage regulator from ON Semiconductor, stands out as a robust solution for designers seeking precision, stability, and thermal protection in their power supply circuits.  

### **Key Features and Benefits**  

The **MC34268DR2** is a **low-dropout (LDO) linear regulator** designed to deliver a fixed output voltage with exceptional accuracy. Its **low dropout voltage** ensures efficient operation even when the input voltage is close to the output level, making it ideal for battery-powered and energy-sensitive applications.  

One of its standout features is its **high output current capability**, supporting loads up to **1.5A**, which makes it suitable for demanding applications such as embedded systems, networking equipment, and industrial automation. Additionally, the device incorporates **thermal shutdown and current-limiting protection**, safeguarding against overheating and short-circuit conditions.  

### **Precision and Stability**  

Engineers will appreciate the **MC34268DR2’s tight voltage regulation**, which minimizes fluctuations and ensures consistent power delivery to sensitive components. With a **low output noise** profile, this regulator is well-suited for noise-sensitive applications like RF circuits, audio systems, and precision analog devices.  

The device also features a **fast transient response**, enabling it to handle sudden load changes without significant voltage deviations. This capability is particularly valuable in dynamic environments where power demands can shift rapidly.  

### **Thermal and Electrical Protection**  

Reliability is a cornerstone of the **MC34268DR2**, thanks to its built-in **thermal shutdown** mechanism. If the junction temperature exceeds safe limits, the regulator automatically disables itself, preventing damage and ensuring long-term durability.  

Moreover, the **current-limiting function** prevents excessive current draw, protecting both the regulator and downstream components from potential faults. These protective features make the **MC34268DR2** a dependable choice for mission-critical systems.  

### **Compact and Easy to Integrate**  

Housed in a **SOIC-8 package**, the **MC34268DR2** offers a compact footprint, making it an excellent fit for space-constrained designs. Its straightforward pinout and minimal external component requirements simplify PCB layout and reduce overall system complexity.  

### **Applications**  

The **MC34268DR2** is versatile enough to serve a broad spectrum of applications, including:  
- **Consumer electronics** (smartphones, tablets, portable devices)  
- **Industrial control systems** (PLCs, motor drivers, sensors)  
- **Telecommunications infrastructure** (routers, switches, base stations)  
- **Automotive electronics** (infotainment, ADAS modules)  

### **Conclusion**  

For engineers seeking a **high-efficiency, high-reliability voltage regulator**, the **MC34268DR2** delivers a compelling combination of performance, protection, and ease of integration. Its ability to maintain stable power under varying conditions makes it a valuable component in modern electronic designs.  

Whether optimizing battery life in portable devices or ensuring uninterrupted operation in industrial systems, the **MC34268DR2** provides a dependable power management solution that meets the demands of today’s advanced applications.

Application Scenarios & Design Considerations

800mA, 2.85, SCSI-2 Active Terminator, Low Dropout Voltage Regulator

Alternative Part Number

  • LM317LDR2G --: Adjustable linear voltage regulator in SOIC-8, functionally similar to the MC34268 low-dropout regulator and widely available.
  • LP2951CM --: Low-dropout adjustable regulator with similar current capability and SOIC-8 package, suitable as a direct functional substitute.
  • TL750L05CDR --: Low-dropout linear regulator in SOIC-8 with comparable voltage regulation performance for similar applications.
  • TL317CDR --: Adjustable positive voltage regulator with similar function and SOIC package, suitable as a drop-in replacement after checking current rating and thermal limits.
  • LM337LZ --: Negative adjustable regulator counterpart often used in complementary rails; choose only if the original circuit requires negative regulation, otherwise verify polarity.

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