LP5907MFX-1.8/NOPB

Current - Output:	250mA
Base Part Number:	LP5907
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	90dB ~ 60dB (100Hz ~ 100kHz)
Current - Supply (Max):	425µA
Current - Quiescent (Iq):	25µA
Series:	--
Voltage Dropout (Max):	0.25V @ 250mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
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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Introduction

The LP5907MFX-1.8/NOPB is a highly precise, high voltage linear voltage regulator IC designed to regulate 1.8V power supplies in a variety of design applications. It uses an integrated 0.7V bandgap reference, low-noise buffered output, high current limit, and low dropout (maximum of 1.5V). The device also features fixed output voltage sensing, thermal shutdown, and active current limiting. The LP5907MFX-1.8/NOPB is designed to be easy to use, stable, and reliable in a variety of design applications.

Application Field

The LP5907MFX-1.8/NOPB is well suited for a variety of applications, such as powering small devices requiring a stable 1.8V supply, such as ADCs in consumer electronics, microcontrollers, and medical devices. It can be used in battery-powered equipment, portable applications, and automotive applications, as well as in portable communication devices.

Advantages of Using the LP5907MFX-1.8/NOPB

The LP5907MFX-1.8/NOPB offers a number of advantages for linear voltage regulator applications:

• The integrated 0.7V bandgap reference allows for stable, low-noise voltage regulation over a broad input voltage range.
• The low quiescent current of the device helps to minimize power consumption, making it well-suited for use in battery-powered equipment.
• The device features a very low dropout voltage (maximum of 1.5V) for superior current efficiency.
• The device is designed to offer excellent load and line transient response, and also features a wide enable voltage range as well as excellent noise rejection.
• The device is designed to fit into a small package, making it well suited to a variety of design applications.

Working Principle

The LP5907MFX-1.8/NOPB works through a simple linear voltage regulation process. The device utilizes an integrated 0.7V bandgap reference to accurately control an output voltage of 1.8V. The reference voltage is used to create a reference voltage across a fixed resistor. The output voltage is then adjusted by varying the current flowing through the fixed resistor, resulting in a stable output voltage. The device also features active current limiting, thermal shutdown, and fixed output voltage sensing for added protection and reliability.

Conclusion

The LP5907MFX-1.8/NOPB is a highly precise, high voltage linear voltage regulator IC designed for applications demanding a stable 1.8V supply. Its integrated 0.7V bandgap reference allows for stable, low-noise voltage regulation over a wide input voltage range, while its low quiescent current helps minimize power consumption. The device also features low dropout voltage, excellent load and line transient response, and an enable voltage range that provides excellent noise rejection. Additionally, the device fits into a small package, making it well suited for many design applications.

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