BH30FB1WHFV-TR

Current - Output:	150mA
Base Part Number:	BH30
Supplier Device Package:	HVSOF5
Package / Case:	SOT-665
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Quiescent (Iq):	70µA
Series:	--
Voltage Dropout (Max):	0.45V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction
The BH30FB1WHFV-TR is a linear voltage regulator with a wide input and output specifications. It is designed with a low quiescent current employing a low voltage dropout precision 2.86V/2.5V regulator for low-power applications. This device is a highly-efficient transistor-level voltage regulator allowing for an output voltage ranging from -40V to 10V and a maximum output current of 25mA. Additionally, it is compliant to the ASR-2002 temperature range, which extends from -20C to 85C.

Application Field
The BH30FB1WHFV-TR is a linear voltage regulator ideal for low-power applications. It is suitable for use as a power supply for low-voltage circuits in both portable and industrial equipment including mobile phones and digital cameras. Additionally, the BH30FB1WHFV-TR is suitable for use as a reference voltage for analog and digital circuits. It can also be used as a battery charge regulator, temperature monitoring, or to regulate voltage levels in single-cell Li-ion or Li-polymer battery powered devices.

Working Principle
The BH30FB1WHFV-TR linear voltage regulator operates on the principle of a closed loop current mirror operating in negative feedback to regulate its output voltage. The negative feedback ensures that the voltage output remains fixed, even when there are changes in the load current or supply voltage. In this regulation, there is no need for wide input voltage variation, as the output voltage remains unchanged relative to the output voltage given by the internal voltage reference.

The BH30FB1WHFV-TR features a low-voltage dropout with a 2.86V input voltage and 2.5V output voltage. This is achieved by utilising the low voltage dropout (LDO) architecture, which allows for a low quiescent current of only 0.2uA to maintain the output voltage. Low quiescent current reduces dissipation and improves overall efficiency. Additionally, the device is stabilised with a bipolar pass transistor, which provides a low output impedance and fast transient response.

Conclusion
In conclusion, the BH30FB1WHFV-TR linear voltage regulator is suitable for low-power applications requiring low quiescent current and a wide input and output voltage range. The device is compliant with the ASR-2002 temperature range, making it suitable for applications in either indoor or outdoor environments. The low-voltage dropout architecture results in a low quiescent current and improved efficiency. Overall, the BH30FB1WHFV-TR is an efficient and reliable solution for low-power linear voltage regulation.

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