BH31PB1WHFV-TR

Current - Output:	150mA
Base Part Number:	BH31PB1
Supplier Device Package:	HVSOF5
Package / Case:	SOT-665
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Soft Start
Control Features:	Enable
PSRR:	60dB (1kHz)
Current - Supply (Max):	40µA
Current - Quiescent (Iq):	4µA
Series:	--
Voltage Dropout (Max):	0.6V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.1V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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BH31PB1WHFV-TR Application Field and Working Principle

The BH31PB1WHFV-TR is a type of linear voltage regulator, also known as a Low Drop-Out (LDO) voltage regulator. It provides a regulated voltage output from a range of input voltages and is typically used in applications where the regulated output voltage can not be obtained reliably from a standard 3-terminal regulator, such as from the effects of induced noise.

Application Fields:

The BH31PB1WHFV-TR is a very versatile linear voltage regulator, capable of powering a wide range of electronic devices, including:

• Computers
• Consumer electronics
• Telecommunication equipment
• Medical equipment
• Thermostats
• Battery chargers

The BH31PB1WHFV-TR can provide a variety of output voltages and is available in versions that operate over a wide range of input voltages, allowing designers to make the most efficient use of their systems in a variety of environments. In addition, the BH31PB1WHFV-TR has a low current consumption and is available in a surface mount package for ease of use in high density applications.

Working Principle:

The BH31PB1WHFV-TR linear voltage regulator works by sensing and comparing the input voltage to the desired output voltage. The difference in these two voltages is then converted into a difference in current between the input side and output side of the regulator. This difference in current is then used to maintain a consistent voltage at the output of the voltage regulator.The BH31PB1WHFV-TR uses a topology of two or more transistors operating in complimentary fashion. In the two transistor circuit, one is an NPN bipolar junction transistor and the other is a PNP bipolar junction transistor. These transistors are wired as a current regulator that measures the input voltage and then adjusts the current to maintain the output voltage constant.The operational amplifier on the BH31PB1WHFV-TR circuit amplifies the error signal, which is the difference between the input voltage and the desired output voltage, and then feeds it back to the NPN and PNP transistors. This feedback ensures that the output voltage is held at the desired level regardless of input voltage changes or output current load fluctuations.

Conclusion:

The BH31PB1WHFV-TR is a high performance low voltage linear voltage regulator, ideal for a wide variety of electronic devices. It has low power consumption and a wide voltage range, allowing it to be used in a variety of applications. Its two transistor topology and built-in operational amplifier also reduce the complexity and cost of designs, making the BH31PB1WHFV-TR a reliable and cost effective solution.

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