LP2986AILD-3.3/NOPB

Current - Output:	200mA
Base Part Number:	LP2986
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):	3.3V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LP2986AILD-3.3/NOPB Application Field and Working Principle

LP2986AILD-3.3/NOPB is a low-dropout (LDO) linear voltage regulator from Texas Instrument. It belongs to a family of voltage regulators known as Power Management IC (PMIC) which mainly focuses on regulating voltage. This particular voltage regulator operates as an adjustable Linear Voltage Regulator, with a maximum output of 3.3V and minimum drop out of 1.3V.

Application Fields

This LDO regulator is extensively used in various electronic applications, such as voltage level translation, automotive systems, power supplies and embedded circuitry. It offers cost-effective solution while utilising small amount of space. Due to its low quiescent current, this LDO regulator is suitable for portable and battery-powered devices. It also allows low strain, reliable and stable operation for all kinds of embedded systems, making it an ideal choice for power management.

Features

The unique features offered by this voltage regulator includes low output voltage noise, high effective input voltage and adjustable output voltage range. It also offers low current operation, with a maximum of 150mA and a minimum of 1mA. It has a very low quiescent current of 1μA (typical). The regulator also offers a fast transient response of 1.2μs (typical) and a wide operating temperature range of -40⁰C and +125⁰C. Additionally, this voltage regulator has an excellent ripple rejection of 60dB (typical).

Working Principle

The LP2986AILD-3.3/NOPB voltage regulator operates on the principle of controlling the output voltage as per the feedback pin voltage. This regulator typically consists of three main components, including an operational amplifier (op-amp), a voltage reference or error amplifier and a series element. The operational amplifier provides a difference between the actual output and reference voltage based on the error amplifier. The output voltage is then modified according to the feedback voltage using a series element.

Benefits

This regulator offers excellent noise reduction, high reliability, low power losses and a wide operating temperature range. Moreover, it provides fast transient response, low quiescent currents, high frequency operation and high ripple-rejection. Furthermore, this voltage regulator is ideal for most power applications such as power supply, storage, RF transmitters, etc. It is also compatible with a wide range of input-output voltage level.

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