LP2985IM5-4.0

Current - Output:	150mA
Base Part Number:	LP2985
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	45dB (1kHz)
Current - Supply (Max):	2.5mA
Current - Quiescent (Iq):	95µA
Series:	--
Voltage Dropout (Max):	0.58V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4V
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Part Status:	Obsolete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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LP2985IM5-4.0 Application Field and Working PrinciplePower management integrated circuits (PMICs) are essential components in any electrical system, providing the necessary control, regulation, and transformation of energy to power multiple subsystems. Power managements systems generally contain multiple components, such as DC-DC converters and linear voltage regulators, that must be configured and coordinated to meet the specific needs of an application. Linear voltage regulators are used when a simple, stable, and low power voltage supply is needed. The LP2985IM5-4.0 is a low-dropout (LDO) linear voltage regulator that is used for a variety of applications where a stable supply at 4.0 volts is desired. The LP2985IM5-4.0 is a three-terminal low dropout linear regulator from Texas Instruments. It is designed to provide a highly accurate 4.0V output voltage from a single supply input voltage ranging from 2.2V to 13.2V. This linear regulator provides basic regulation, allowing it to deliver currents up to 800mA at the output. The minimal dropout voltage of 400mV and on-chip overcurrent protection make the LP2985IM5-4.0 suitable for space-limited applications operating with low input into output voltage differences. The LP2985IM5-4.0 is offered in an ultra-small, thermally enhanced, low profile (< 1 mm) 8-pin Exposed Pad TSSOP package, making it suitable for portable applications such as mobile phones, portable navigation systems, and cameras. The working principle behind the LP2985IM5-4.0 is simple and straightforward. The device is essentially a three-terminal integrated circuit with an input, an output, and a ground. At the input, an amplifier takes the supply voltage and passes it to a bandgap reference, which establishes the regulator’s output voltage. The amplifier has a wide input voltage range and can support a broad range of operating conditions. The output voltage is then compared to the reference and the error signal is converted to a control current. This control current is fed to a series of pass devices that regulates the output voltage. The LP2985IM5-4.0 provides many advantages to a system, including an ultra-low dropout voltage of 400mV, a wide input voltage range from 2.2V to 13.2V, an adjustable output current limit of up to 800mA, and an on-chip overcurrent protection circuit. Additionally, the LP2985IM5-4.0 is offered in an ultra-small 8-pin Exposed Pad TSSOP package, making it suitable for space-limited applications such as mobile phones, portable navigation systems, and cameras. In short, the LP2985IM5-4.0 is a linear low-dropout voltage regulator that can provide a highly accurate 4.0V output voltage from a single supply input voltage ranging from 2.2V to 13.2V. The LP2985IM5-4.0 is ideal for space-limited applications operating with low input into output voltage differences, and is offered in an 8-pin Exposed Pad TSSOP package. The LP2985IM5-4.0 is simple to use, providing a minimal dropout voltage of 400mV with an adjustable output current limit of up to 800mA and an on-chip overcurrent protection circuit.

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