LP3905SD-00/NOPB

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Applications:	Handheld/Mobile Devices
Current - Supply:	--
Voltage - Supply:	3 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	14-WFDFN Exposed Pad
Supplier Device Package:	14-WSON (4x4)
Base Part Number:	LP3905

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LP3905SD-00/NOPB Application Field and Working Principle

Introduction

LP3905SD-00/NOPB is a low current, low voltage, low power voltage regulator and regulator system. It can provide 1.8V to 5.0V regulated output voltage, and is widely used in a variety of portable devices, such as digital cameras, cell phones, portable media players, portable multimedia devices and others. The LP3905SD-00/NOPB is a low voltage regulator that supports both linear and switching regulation modes. It features a wide input voltage range to meet the requirements of different applications, and can provide up to 6V output and operate at 400 kHz switching frequency.

Application Field

Low current, low voltage, and low-power applications such as portable devices, multimedia peripherals, communications, computer peripherals, and audio systems. LP3905SD-00/NOPB has a wide input voltage range and can provide up to 6V output, making it ideal for applications with varying power requirements like portable multimedia devices. The adjustable outputs can be set to any desired voltage in the range between 1.8V to 5V, making it perfect for applications with adjustable voltage requirements like cell phones and digital cameras. It also supports both linear and switching regulation modes, allowing users to adjust the regulators based on their needs.

Working Principle

The LP3905SD-00/NOPB regulator works in either linear or switching regulation mode. In linear mode, it operates as a linear voltage regulator and uses a voltage divider network to adjust the output voltage. In switching mode, the regulator switches between the ground and the power source, creating a square waveform. The duty cycle of the square waveform is controlled by a reference voltage, giving the regulator its adjustable output voltage.The LP3905SD-00/NOPB regulator features a wide input voltage range that supports both linear and switching regulation modes. It can receive an input voltage of up to 20V, allowing it to operate on various power sources. The regulation output voltage can be adjusted from 1.8V to 5V, controlled by the reference voltage input. The part also supports up to 400 kHz switching frequency, providing stable and adjustable voltage levels for a wide range of applications.

Conclusion

LP3905SD-00/NOPB is a low current, low voltage and low power voltage regulator system that is widely used in portable, multimedia and communication devices. It supports both linear and switching regulation, allowing users to adjust the output voltage according to the requirements of the application. The part also has wide input voltage range and supports up to 400 kHz switching frequency, making it suitable for a variety of applications.

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