LM2941SX

Current - Output:	1A
Base Part Number:	LM2941
Supplier Device Package:	DDPAK/TO-263-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Reverse Polarity, Short Circuit
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	15mA
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1V @ 1A
Voltage - Output (Max):	20V
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	26V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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The LM2941SX is an integrated circuit designed and created by Texas Instruments that is specified in the product category "PMIC – Voltage Regulators – Linear". It is a low-dropout (LDO) voltage regulator particularly utilized in the manufacture of electronic components. The primary goal of the device is to provide a dependable and stable output voltage even when the input voltage varies. Its working principle predominantly follows a three-step process that includes regulating, current limiting, and short-circuit protection.The regulating step is necessary in order to ensure a steady and continuous flow of low-noise power for the device. In this section, the LM2941SX compares the output voltage with a reference voltage and then adjusts the voltage based on the offset between the two. During the current limiting stage, the device activates a form of low-dropout pre-regulator circuitry. This circuitry enables the unit to automatically shut off the power supply when the input voltage falls below the minimum voltage level. Lastly, the circuitry of the device is able to identify and prevent the occurrence of any short-circuits by using its integrated sense-resistor input.The LM2941SX is ideally utilised when a portable, low-noise, and highly efficient voltage regulator is needed. Common applications include cameras, mobile phones, and other portable devices, where a constant input voltage is desired to maintain stable functioning. In addition, it can work with a maximum input voltage of 20V, output voltage of up to 4V, and a total power dissipation of up to 1A.The main advantages of the LM2941SX are its low quiescent current, low dropout voltage, and low output voltage deviation. The low quiescent current of the device makes it easier to optimise power dissipation while keeping the output voltage constant. Furthermore, its low dropout voltage enables the device to maintain its output voltage when the input voltage is significantly low. As a result, the device has improved power efficiency. The device also has a very low output voltage deviation, providing reliable voltage regulation even when the input voltage is inconsistent. The LM2941SX contains an integrated voltage reference (IVR) in order to maintain a constant detect voltage. The IVR generates a reference voltage that is used in the comparison between the output and monitor voltages in order to determine the necessary voltage-regulating behaviour. This integrated voltage reference has a wide operating temperature range of -40°C to 125°C, and an output accuracy of 2% maximum.Furthermore, the LM2941SX includes a wide range of other electrical features to improve the handling of the device. These features include low-power shutdown, o/p current limiting, o/p thermal limit protection, and pre-biasing protection. Low-power shutdown ensures that the device is shut off when the input voltage is too low, in order to prevent any damage. The o/p current limiting and o/p thermal limit protection features are responsible for automatically cutting off the output when the current exceeds the specified limit. Finally, the pre-biasing protection feature enables the device to protect itself against false startup conditions. Overall, the LM2941SX is a widely used voltage regulator that, thanks to its low quiescent current, low dropout voltage, and low output voltage deviation, is known to be very efficient and dependable. It is used in a variety of applications to reliably maintain a consistent voltage, such as cameras, mobile phones, and other portable devices. Additionally, its integrated voltage reference has a wide temperature range and output accuracy, making it ideal for use in temperature-sensitive environments. Finally, the range of other electrical features included in the device ensures safe and reliable operation and enables it to protect against false startup conditions.

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