BD35618HFV-TR

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Introduction

Linear voltage regulators play a vital role in managing the power supply of a variety of electronics and are commonplace components in any computer. Voltage regulators are designed to ensure that the power supply always remains in its designated range, inhibiting the power supply from exceeding or under shooting the target voltage. The BD35618HFV-TR model from ROHM Semiconductor is an example of a linear voltage regulator, which plays a large role in providing voltage regulation for devices and subsystems with in a modern computing system.

Application Field

The BD35618HFV-TR regulators are designed for a wide range of applications and can be used in most current, low voltage digital systems. It should be noted that the BD35618HFV-TR, is particularly suitable for powering analog and digital devices like microcontrollers, microprocessors, and DDR memory devices, making it an ideal choice for a host of applications. Some of these applications include mobile phones, tablets, and embedded systems, while industrial application such as server systems, medical devices and point of sale systems may also require the BD35618HFV-TR.

In addition to this, the BD35618HFV-TR also features a robust protection circuit, making it a popular choice for PoE (Power over Ethernet) applications such as security cameras or wireless access points. It also features fast load transient response and low quiescent current consumption. As a result, the BD35618HFV-TR excels in providing a stable power supply for systems that may otherwise experience significant fluctuations.

The BD35618HFV-TR voltage regulators are available in a 10-lead SOP Package, making it ideal for use in limited space where a discrete design cannot be used. This feature also allows for simplified layout, as well as easier routing of the power circuit. In addition to this, the BD35618HFV-TR is also compliant with the RoHS directive, thereby making it an environment-friendly component. All these features make the BD35618HFV-TR an ideal choice for a host of applications that require reliable voltage regulation.

Working Principle

Linear voltage regulators operate by using a damper system to smooth the flow of power and keep it within the prescribed range. The BD35618HFV-TR regulator takes advantage of a low drop-out, fixed output low drop-out (LDO) regulator, which features a voltage reference system, adjustable power output and a power control switch. The voltage reference system ensures that the output voltage remains within the specified range while the adjustable power output allows the user to customize the output current.

The voltage reference system consists of two resistors connected in series and connected between the input and output of the regulator. The output of the regulator is connected to the common node between the two resistors and the junction of the two resistors is connected to the power control switch. When the output voltage is lower than the reference voltage, the switch closes to increase the output voltage, while when the output voltage is higher than the reference voltage, the switch opens to reduce the output voltage.

The BD35618HFV-TR also includes a short-circuit protection circuit, which is typically paired with the thermal shutdown circuit. These help to ensure that the device is protected from damage due to an overcurrent, overvoltage or overtemperature condition. These features, in combination with the inherently long life of linear voltage regulators make the BD35618HFV-TR a reliable and durable component that can provide efficient and stable voltage regulation for a variety of applications.

Conclusion

The BD35618HFV-TR from ROHM Semiconductor is an example of a linear voltage regulator that is well-suited for use in a variety of applications, including mobile phones, tablets, embedded systems, server systems and medical devices. It features fast load transient response and low quiescent current consumption, as well as a robust protection circuit and a 10-lead SOP package. All these features make the BD35618HFV-TR a reliable choice for power supply regulation.

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