LP38798SDE-ADJ/NOPB

Current - Output:	800mA
Base Part Number:	LP38798
Supplier Device Package:	12-WSON (4x4)
Package / Case:	12-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	60dB (1kHz)
Current - Supply (Max):	2.2mA
Current - Quiescent (Iq):	1.4mA
Series:	--
Voltage Dropout (Max):	1.1V @ 800mA
Voltage - Output (Max):	19.8V
Voltage - Output (Min/Fixed):	1.2V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

LP38798SDE-ADJ/NOPB is a linear voltage regulator manufactured by Texas Instruments. It is part of the Linear Voltage Regulators family in the Programmable Mixed-signal Integrated Circuit (PMIC) product line. This device is designed to convert a higher voltage to a lower voltage, typically for a system or device requiring a stable voltage for operation. It is capable of producing an output voltage of up to 7.5V, making it suitable for a variety of electronic applications.

Application Field

LP38798SDE-ADJ/NOPB has a variety of digital applications such as consumer electronics and communications. It is used in any system or device that requires an adjustable, low-noise and low-dropout (LDO) voltage regulator. Typical applications include consumer electronics such as mobile phones, personal digital assistants (PDAs), personal computers, portable music players and digital cameras. Additionally, this device is used in communication systems such as notebook computers, base stations, and land-mobile radio (LMR) systems. It is also suitable for applications that require an adjustable lower voltage such as automobile systems, portable medical equipment, and industrial IoT (Internet of Things) systems.

Features

The LP38798SDE-ADJ/NOPB is a low dropout regulator that is capable of accepting an input voltage of up to 5.5V and offers overvoltage protection up to 80V. It offers a Accuracy of 1.2% across Line, Load and Temperature (A-L-T) and a minimum dropout voltage of 150mV. It also boasts a very low EMI (electromagnetic interference) emissions, ensuring operation under high EMI conditions such as automotive environments. In addition, it is also designed to operate with very low output noise at faster transient response characteristics.

Working Principle

The LP38798SDE-ADJ/NOPB is an adjustable linear voltage regulator. It operates by using an internal P-type MOSFET transistor to regulate the output voltage. When the input voltage is higher than the output voltage, the internal transistor switches on. This allows current to flow from the input to the output. When the input voltage is lower than the output, the transistor switches off, preventing current from flowing. This ensures that the output voltage remains constant.The device also includes a number of features to protect the device and its connected load, as well as provide a stable voltage under varying conditions. These include overvoltage and reverse current protection, thermal protection and short-circuit protection. Additionally, it has programmable output voltage range and enable pins to enable it to provide an adjustable output voltage.

Conclusion

The LP38798SDE-ADJ/NOPB is a linear voltage regulator from the Programmable Mixed-signal Integrated Circuit (PMIC) product line from Texas Instruments. It is suitable for a variety of digital applications such as consumer electronics and communications, and is designed to provide an adjustable, low-noise, low dropout (LDO) voltage regulator with up to 7.5V output voltage. Its low EMI emissions and fast transient response capabilities make it suitable for applications that require an adjustable lower voltage, including automobile systems, portable medical equipment, and industrial IoT (Internet of Things) systems. This device operates by using an internal P-type MOSFET transistor to regulate the output voltage, while a number of integrated features provide protection and stability under varying conditions.

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