LP2989AIMMX-2.5

Current - Output:	500mA
Base Part Number:	LP2989
Supplier Device Package:	8-VSSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
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):	9mA
Current - Quiescent (Iq):	175µA
Series:	--
Voltage Dropout (Max):	0.65V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V
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Part Status:	Obsolete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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Introduction

LP2989AIMMX-2.5 is a voltage regulator from Texas Instruments. It belongs to the PMIC (Power Management ICs) family. It is a linear voltage regulator and provides a low-power, space-saving solution for low-voltage active load applications. It is designed to maintain a low-noise output voltage for sensitive loads.

Application Field

LP2989AIMMX-2.5 can be used in a variety of applications like status indicator, keypad, display and touch panel backlighting, or oscillator bias, etc. It is ideal for low-power applications in mobile phones and other portable devices, such as digital cameras, GPS devices and other digital products. The maximum fixed output voltage of LP2989AIMMX-2.5 is 2.5V and it can deliver up to 500 mA of output current. The voltage regulator also integrates a full user-programmable power-on reset function. The device also provides excellent dynamic performance with fast load transient response, provides input voltage range from 1.2 V to 5.5 V, and it is specified overand two different frequency ranges.

Package and Pin Information

LP2989AIMMX-2.5 comes in a Small Outline LC-LP (SOT-265-4) package for easy mounting and less board space utilization. It has three pins: Input Voltage (VIN), Power Ground (PGND), and Output Voltage (VOUT).

Working Principle

LP2989AIMMX-2.5 is a linear voltage regulator and works based on the principle of ohmic law. It works by keeping the output voltage at a constant value. To control the output voltage, the regulator compares the input voltage to the voltage reference through an error amplifier. When the output voltage is too low, the error amplifier increases the output current by increasing the electrical power. The opposite happens when the output voltage is too high.This principle is called a feedback loop and it is the controlling method used by the LP2989AIMMX-2.5 linear voltage regulator.The main function of LP2989AIMMX-2.5 is to regulate the output voltage to a predefined value, regardless of variations in the output current.

Conclusion

LP2989AIMMX-2.5 is a voltage regulator from Texas Instruments that belongs to the PMIC family. It is a linear voltage regulator and provides a low-power, space-saving solution for low-voltage active load applications. It is designed to maintain a low-noise output voltage for sensitive loads. It can be used in a variety of applications like status indicator, keypad, display and touch panel backlighting, or oscillator bias, etc. The maximum fixed output voltage of LP2989AIMMX-2.5 is 2.5V and it can deliver up to 500 mA of output current. The device works based on the principle of ohmic law, and its main function is to regulate the output voltage to a predefined value, regardless of variations in the output current.

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