LM2936DT-3.0

Current - Output:	50mA
Base Part Number:	LM2936
Supplier Device Package:	TO-252-3
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Reverse Polarity, Short Circuit
Control Features:	--
PSRR:	60dB (120Hz)
Current - Supply (Max):	2.5mA
Current - Quiescent (Iq):	15µA
Series:	--
Voltage Dropout (Max):	0.2V @ 50mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	40V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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PMIC - Voltage Regulators - Linear

The LM2936DT-3.0 is a monolithic low-dropout (LDO) linear regulator manufactured and developed by Texas Instruments. It offers a wide range of protection features and superb noise and ripple rejection to deliver a stable voltage supply. It is suitable for powering low-noise and low-power circuits such as microprocessor cores, DSPs, memories, and other analog and digital circuits that require a well-regulated supply voltage.

Application Field and Working Principle

The LM2936DT-3.0 is an ultra-low-noise railroad linear voltage regulator. It is specifically designed for applications where noise reduction and long-term stability are desired. It has a wide input voltage range from 2.5V to 24V, a maximum output voltage of 3.3V, and a low dropout voltage of 100mV at a typical load current of 500mA. It is designed to handle maximum output currents up to 500mA and can operate at input-output voltage differences as low as 50mV.The LM2936DT-3.0 operates using an external N-channel MOSFET to regulate the output voltage. When the output voltage increases, the MOSFET turns on and the output voltage begins to decrease. When the output voltage is below the set voltage, the MOSFET will shut off and the current supply to the circuit stops. This ensures that the output voltage is always stabilized, regardless of load changes. The LM2936DT-3.0 also features a thermal shutdown circuit which will disconnect the MOSFET from the input voltage when the system temperature reaches a certain threshold, ensuring your device does not overheat.Other features of the LM2936DT-3.0 include a short-circuit protection circuit that quickly shuts off the device when the load current exceeds the load current limit, a set of programmable voltage accuracy levels, variable Oscillator power, variable start up current, and variable voltage delay. It is also equipped with an overcurrent protection circuit which will shut off MOSFET when the output current exceeds the current limit.The LM2936DT-3.0 is well-suited for a range of applications including industrial, automotive, and communication. It is well-suited for powering sensitive microprocessor cores, DSPs, memories, and other analog and digital circuits that require a well-regulated supply voltage. It provides excellent output voltage regulation, allowing the output voltage to remain constant regardless of load or input supply variations. It also offers superb noise and ripple rejection, ensuring smooth and stable operation for long term reliability.In conclusion, the LM2936DT-3.0 is a reliable, low-power linear voltage regulator that is designed for industrial and automotive applications as well as other low-noise and low-power circuits. It offers protection features, superior noise and ripple rejection, and a wide operating voltage range. Its low-dropout performance, current limit, and thermal protection circuits make it an excellent choice for powering sensitive microprocessor cores, DSPs, memories, and other analog and digital circuits.

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