BD80GA3WEFJ-E2

Current - Output:	300mA
Base Part Number:	BD80
Supplier Device Package:	8-HTSOP-J
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Soft Start
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	900µA
Current - Quiescent (Iq):	0.6mA
Series:	--
Voltage Dropout (Max):	0.9V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	8V
Voltage - Input (Max):	14V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

BD80GA3WEFJ-E2 is the voltage regulator controller from ROHM Semiconductor, an industry-leading company in the manufacturing and engineering of semiconductor components. It is a linear, adjustable regulator with low supply current, making it ideal for applications in low power electronics.

Features

The BD80GA3WEFJ-E2 offers a wide range of features and benefits that make it a great choice for linear voltage regulators. It has low supply current, with a low quiescent current of 200μA. It also offers adjustable output voltage with accuracy of ±2% and high ripple rejection. In addition, its output voltage can be changed via an external voltage divider or a voltage reference. The BD80GA3WEFJ-E2 also offers a wide operating temperature range of -40°C to +125°C and comes in a small and compact package, making it ideal for space-constrained applications. Its input voltage range is from 1V to 7V and it can support currents up to 500mA.

Application Fields

The BD80GA3WEFJ-E2 is ideal for a wide range of low power applications. It is especially useful for applications that require adjustable output voltages, such as battery chargers and AC adapters. It can also be used for voltage references in automated test systems. Due to its low quiescent current and low supply current, the BD80GA3WEFJ-E2 is also well suited for applications requiring energy efficiency, such as automotive electronics and consumer electronics.

Working Principle

The BD80GA3WEFJ-E2 operates on a simple and straightforward principle. It has a built-in error amplifier and a voltage reference, which are connected to a voltage divider. The voltage divider creates a feedback loop that is used to control the output voltage accurately. When the error amplifier receives the feedback signal, it controls the base voltage of an internal transistor, which in turn controls the output voltage. The voltage reference provides a reference voltage for the error amplifier to compare with the output voltage. The reference voltage can be used to accurately adjust the output voltage as needed.

Conclusion

The BD80GA3WEFJ-E2 from ROHM Semiconductor is a linear adjustable voltage regulator that is ideal for low power applications. It has a wide range of features, including low quiescent current, adjustable output voltage, accurate voltage regulation, and high ripple rejection. Its wide operating temperature range and compact package make it great for space-constrained applications as well. The BD80GA3WEFJ-E2 operates on a simple voltage divider feedback loop that is used to control the output voltage accurately. Overall, it is a great choice of voltage regulator for a variety of applications.

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