BD80GA3MEFJ-ME2

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Introduction

The BD80GA3MEFJ-ME2 is a three-terminal linear adjustable regulator, housed in a small SOT663/SC-70 package. It offers low consumption, low thermal resistance and excellent stability.The rigid voltage control characteristic makes the BD80GA3MEFJ-ME2 suitable for a wide range of applications, including AV systems, automotive systems and digital still cameras. The BD80GA3MEFJ-ME2 is a monolithic adjustable three-terminal regulator which offers a wide range of output voltage settings from 1.2 to 37V. It is adapted for operation from very low voltage supply, namely 1.2V for all output current options, with a line efficiency better than 95%.

Application field

The BD80GA3MEFJ-ME2 is particularly suitable for use in automotive applications as well as digital still cameras and devices that require an adjustable output voltage for output power levels up to 4W.

• Digital still cameras
• Cellular phones
• AV systems
• Automotive applications
• Battery-powered systems
• High performance security systems

Working principle

The BD80GA3MEFJ-ME2 acts as an adjustable voltage regulator by providing a stabilized fixed output voltage (VOUT) with a wide range of settings, depending on an externally supplied reference voltage (VREF). The device combines low voltage operation, low power consumption, fast transient response, and high stability. The device is a shunt regulator and will operate from input voltages up to 40V. The effective output voltage range is nominally 1.2 to 37V.

The BD80GA3MEFJ-ME2 is a low voltage linear regulator. It works by using a series of transistors to pass current from the input voltage to the output voltage. The input voltage is compared to the reference voltage (VREF) to control the amount of current flowing across an integrated power transistor (BJT). When the output voltage is higher than the reference voltage, the BJT is turned on, causing current to pass through the BJT, resulting in a lower output voltage. When the output voltage is lower than the reference voltage, the BJT is turned off, and no current passes through the BJT, resulting in a higher output voltage.

The BD80GA3MEFJ-ME2 also features a fast transient response capability, which offers an added measure of stability. When the output voltage changes, an internal comparator monitors the output voltage, and adjusts the BJT accordingly, allowing for fast response time to changing output demands.

The BD80GA3MEFJ-ME2 has been designed to minimize power dissipation. To do this, it utilizes a combination of concepts from circuit design and power semiconductor technologies. First, by using an integrated BJT as the main power component, the BD80GA3MEFJ-ME2 can dissipate power with greater efficiency than an external Schottky diode. Second, by using a high-frequency chopper converter and a low resistance power path, the BD80GA3MEFJ-ME2 can maintain a constant and stable output voltage. Finally, the BD80GA3MEFJ-ME2 has been designed to allow for high efficiency operation.

Conclusion

The BD80GA3MEFJ-ME2, a three-terminal analog adjustable regulator, provides a wide range of output voltage settings from 1.2 to 37V. It offers low consumption, low thermal resistance and excellent stability, making it suitable for a wide range of applications such as digital still cameras, AV systems and automotive applications. The BD80GA3MEFJ-ME2 is a monolithic adjustable three-terminal regulator which offers low voltage operation, low power consumption, fast transient response and high stability. The combination of low voltage operation, low power dissipation and high stability makes the BD80GA3MEFJ-ME2 an ideal device for applications which require the highest level of performance.

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