BD33GA5MEFJ-ME2

Current - Output:	500mA
Supplier Device Package:	8-HTSOP-J
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C
Protection Features:	Over Current, Over Temperature, Soft Start
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	900µA
Current - Quiescent (Iq):	0.6mA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	1.2V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
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

The BD33GA5MEFJ-ME2 is a linear voltage regulator, part of a range of adaptive power management integrated circuits (PMICs) designed and manufactured by Panasonic. It is intended to help control a DC voltage source, such as a battery, within a specified range to provide consistent power output. The device is a versatile, low noise, high accuracy, low power, and low temperature coefficient, making it ideal for a range of applications.

Features and Benefits

The BD33GA5MEFJ-ME2 offers a range of features and benefits, making it suitable for a wide range of DC voltage sources. Features include an adjustable output voltage range, an output current of up to 100 mA, a wide operating temperature range of -40 °C to +85 °C and a high electrical accuracy.Furthermore, the device offers protection against short circuits and over-voltage, is RoHS-compliant and halogen-free, and meets all applicable safety regulations. Additionally, the device has a low standby current of 0.45 μA and a very short start-up time.The advantages of the BD33GA5MEFJ-ME2 include its low power consumption, high efficiency, low noise operation, and low voltage ripple. It is also reliable, robust and cost-effective.

Applications

The BD33GA5MEFJ-ME2 is a highly versatile voltage regulator suitable for a range of applications, including consumer electronics, automotive, medical systems, communications, automation, and industrial equipment. Some of its potential applications include powering an LCD display, powering an embedded processor, powering an automotive engine control unit, powering a heating element, supplying power to a medical device, supplying power to a battery charger, controlling voltage to a communication device, controlling voltage to an automation system, and providing power to a robotic arm.

Working Principle

The BD33GA5MEFJ-ME2 is a linear voltage regulator, meaning the output voltage is linearly dependent on the input voltage and is regulated by controlling the current passed through a resistor between the output terminal and ground.The device uses a dynamic output voltage control technology known as Pulse Width Modulation (PWM). In this system, the output voltage is controlled by periodically switching the output of the regulator between the regulated output voltage and ground. The frequency of the switching is constant and determined by the feedback loop which compares the output voltage to the desired voltage set by the user. The pulse width of each time window is adjusted depending on the difference between the output and set voltages. This stabilises the output voltage and allows the regulator to respond instantly to input voltage changes.The device also has a temperature compensation circuit which adjusts the output voltage to maintain the set voltage in a wide temperature range.

Conclusion

The BD33GA5MEFJ-ME2 is a linear voltage regulator designed and manufactured by Panasonic for a range of applications in consumer electronics, automotive, medical systems, communications, automation, and industrial equipment. It incorporates a PWM-controlled output voltage system, temperature compensation circuit and a protection circuit alongside other features and benefits. The device is a reliable, robust, and efficient solution for DC voltage source control in a range of contexts.

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