ROHM Semiconductor BD4xS5-C Fixed Output LDO Regulators

Introduction

The ROHM Semiconductor BD4xS5-C Fixed Output Low Dropout (LDO) Regulators are engineered for high-reliability applications, particularly in automotive and industrial systems. These regulators are designed to provide stable output voltages while accommodating a wide range of input voltages, making them a versatile choice for various electronic applications.

Part Description

The BD4xS5-C series offers fixed output voltages ranging from 1.8V to 5.0V and can handle input voltages up to 45V. This makes them suitable for environments with fluctuating or high-voltage power sources. Key features include low dropout voltage, low quiescent current of 38µA, and built-in protection functions such as overcurrent protection (OCP) and thermal shutdown (TSD). The regulators are qualified for automotive applications under AEC-Q100 standards, ensuring reliability in critical systems.

Applications

• Automotive systems
• Electronic Control Units (ECUs)
• Advanced Driver Assistance Systems (ADAS)
• Infotainment and navigation systems
• Instrument clusters and dashboard electronics
• Industrial equipment
• Factory automation controllers
• Sensors and actuators
• Communication modules
• Power management for microcontrollers and logic circuits
• Consumer and embedded electronics
• Internet of Things (IoT) devices
• Smart meters
• Wearable electronics
• Battery-powered systems

Industries

• Automotive
• Industrial Automation
• Consumer Electronics
• Telecommunications
• IoT and Smart Devices

Usage Ideas

1. Automotive ECU Power Supply: Utilize the BD4xS5-C to power an Electronic Control Unit in a vehicle, ensuring stable voltage even with fluctuating input from the vehicle's electrical system.
2. IoT Sensor Node: Design a low-power IoT sensor node that uses the LDO regulator to maintain consistent voltage levels for sensors and communication modules, enhancing battery life.
3. Smart Meter Design: Implement the BD4xS5-C in a smart meter application to regulate power for measurement circuits, ensuring accurate readings and reliable performance.

Conclusion

The ROHM Semiconductor BD4xS5-C Fixed Output LDO Regulators are a robust solution for a variety of applications, particularly in automotive and industrial settings. With their wide input voltage range, low quiescent current, and built-in protection features, these regulators provide reliable power management for critical electronic systems. Whether in automotive ECUs or IoT devices, the BD4xS5-C series is designed to meet the demands of modern electronic applications.