Voltage Dropout (Max):	1.2V @ 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):	1.2mA
Current - Output:	500mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	7V
Voltage - Input (Max):	8V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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BD70HA5MEFJ-LBH2 application field and working principle

Introduction

The BD70HA5MEFJ-LBH2 is a linear voltage regulator manufactured by the NXP semiconductor company. The device is a temperature compensated voltage regulator that is specifically designed for applications in computers and wireless communication devices. It is a monolithic three terminal device that uses a combination of external capacitors and voltage feedback elements to deshoot/ regulator the output voltage. It is cost efficient, reliable and can be configured to provide a wide range of input and output voltages.

Applications

The BD70HA5MEFJ-LBH2 is designed to be used in applications where the power supply design needs to comply with various environmental conditions like temperature variations, electronic noise and ship resonant loads. The device is most suited in applications such as power supplies that are required to be temperature compensated. In addition, the device can also be used in computers, server and desktop applications.

Features

The BD70HA5MEFJ-LBH2 has some unique features that make it an ideal choice for voltage regulation applications. Some of the key features of the device include: • Low power consumption • Low voltage dropout • Output voltage accuracy across a wide range of temperature • Over-current protection • Over-voltage protection • Reverse current protection • Low power-loss ground and neutral current mode • Low noise operation

Working Principle and Design

The BD70HA5MEFJ-LBH2 is designed and manufactured to be used in an open loop electronic feedback voltage control system. In this type of control system, the output voltage is regulated by monitoring the output current and adjusting it with an external feedback circuit. This type of control system is very efficient and makes the device highly reliable.The device has a closed loop voltage control system which is comprised of three components- an external voltage feedback element, an internal voltage reference and a comparator. The voltage feedback element is connected between the input and the output of the device which acts as a voltage error signal. The internal voltage reference generates a reference voltage which is compared with the feedback signal by the comparator. The comparator then generates a pulse width modulated signal that is used to adjust the output voltage accordingly.The BD70HA5MEFJ-LBH2 also has an integrated over-current protection circuit. This circuit senses the current demand and shuts off the output in case of an over current scenario. This feature makes the device extremely safe to use in situations where the current demand is high.

Conclusion

The BD70HA5MEFJ-LBH2 is a linear voltage regulator manufactured by the NXP semiconductor company. It is specifically designed for applications in computers and wireless communication devices. The device is a monolithic 3 terminal device and uses an external voltage feedback element and internal voltage reference to monitor and deshoot the output voltage. It is a low power, reliable device that can be configured to provide a wide range of input and output voltages. The BD70HA5MEFJ-LBH2 also has an integrated over-current protection circuit which is very useful in situations where the current demand is high.

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