LP2988AILDX-3.8

Current - Output:	200mA
Base Part Number:	LP2988
Supplier Device Package:	8-WSON (4x4)
Package / Case:	8-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	65dB (1kHz)
Current - Supply (Max):	3.7mA
Current - Quiescent (Iq):	120µA
Series:	--
Voltage Dropout (Max):	0.35V @ 200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.8V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LP2988AILDX-3.8 Application Field and Working PrincipleLP2988AILDX-3.8 is a member of three-terminal low-dropout regulator (LDO) family of linear voltage regulators which can provide 3.8V regulated output over a wide input voltage range. It is designed as low noise and high efficiency linear regulator, which can be used in a wide range of different application scenarios, for example wearable computing, battery management systems, automotive, data applications and general purpose. LP2988AILDX-3.8 is a highly efficient and cost effective power management solution that can easily meet the most demanding requirements. The LP2988AILDX-3.8 is a low-noise, low-input-voltage linear voltage regulator. It has two terminals, a load terminal (OUT) and a reference terminal (GND).In addition, the input voltage is connected to the input terminal (IN).In order to ensure its accurate performance and protect it from being damaged, proper protection components such as electrical fuses and over-temperature protection are provided.The LP2988AILDX-3.8 brings an overall power-saving solution for a wide range of different applications. The device features high input voltage rejection, high output accuracy, high transient to dropout performance, fast settling time, over-voltage protection and automatic shutdown when the input voltage drops below the specified operating thresholds. It is also designed to offer very low output ripple and ultra-low-noise operation, enabling the use of high-frequency noise-sensitive components without any problems.In addition, the LP2988AILDX-3.8 has built-in adjustable current protection, making it suitable for applications that require high-load currents. The built-in current-protection circuitry prevents excessive current flow while still providing the current required by the load.At the heart of the LP2988AILDX-3.8 is the internal low-dropout voltage regulator, which is the essential component of any linear voltage regulator circuit. This device consists of two sections, an internal power supply and an output stage. The power supply contains an input stage which reduces the incoming voltage to the regulated level, and an SOT-23 diode. The diode serves as an active protection circuit, limiting the voltage to a safe level in the event of a fault or over-voltage situation.The output stage is where the adjustable current protection circuitry and the output voltage are set. The output voltage is set by adjusting the output voltage divider implemented within the output stage. The adjustable current protection circuitry then sets the maximum allowed current-flow through the output terminal of the circuit.The LP2988AILDX-3.8 is an ideal solution for a wide range of applications that require voltage regulation in a variety of different environments. It is capable of providing a reliable and accurate voltage regulation for systems with a wide input voltage range. With its high efficiency, low noise operation and robust protection circuitry, this device is well suited for the most challenging applications.

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