E-L5972D

Voltage - Output (Min/Fixed):	1.235V
Base Part Number:	L5972
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	250kHz
Current - Output:	2A
Voltage - Output (Max):	35V
Series:	--
Voltage - Input (Max):	36V
Voltage - Input (Min):	4.4V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tube

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Introduction E-L5972D is a DC-DC switching regulator controller developed and manufactured by STMicroelectronics. It is designed for high performance SMPS (switched mode power supplies) for computing and consumer applications. The device operates from a 16V to 40V input voltage range and delivers up to 1.5A of continuous output current. The E-L5972D can be used in applications such as server/workstations, PCs and consumer electronics, etc. It features an embedded high-efficiency PWM controller, voltage and current monitoring, under-voltage lockout (UVLO), programmable soft-start, multiple protection features and adjustable operating frequency, among other features. E-L5972D Application Field The E-L5972D is suitable for a wide range of computing and consumer applications. In the consumer market, the device can be used for low-voltage power supplies such as mobile phone chargers, game consoles, DVD players, LCD and LED TV sets, as well as any common appliance requiring dc/dc switching regulator.The E-L5972D can also be used for more complex and demanding computing applications. It can be used for voltage regulation for high-end processors and FPGAs, as well as for computer servers and workstations. For example, the device can be used to create a 24V power supply for servers, while meeting compatibility requirements with a wide range of CPUs, FPGAs and ASICs.E-L5972D Working Principle The E-L5972D operates via a switched-mode power supply (SMPS) topology, in which a switching regulator actively controls the output voltage. The device implements a synchronous rectification buck type SMPS, where a high-side MOSFET along with a low-side MOSFET are used to switch the power between the input and output at high frequencies. The output voltage is regulated by controlling the duty cycle of the high-side MOSFET.At the same time, the E-L5972D offers an adjustable output voltage with a programmable internal oscillator. This allows for an increase in the output power by increasing the switching frequency, enabling more efficient operation at higher frequencies.Other key features of the E-L5972D include adjustable current sense threshold, undervoltage lockout (UVLO), programmable soft-start and multiple protection features like over-voltage protection and over-temperature protection.Conclusion The E-L5972D is a versatile DC-DC switching regulator controller developed and manufactured by STMicroelectronics. It is designed for high performance SMPS applications for computing and consumer applications. The device operates from a 16V to 40V input voltage range and can deliver up to 1.5A of continuous output current. It features an embedded high-efficiency PWM controller, voltage and current monitoring, undervoltage lockout (UVLO), programmable soft-start, multiple protection features and adjustable operating frequency, among other features. The E-L5972D can be used for a wide range of computing and consumer applications, from low-voltage power supplies for appliances to complex computing applications such as voltage regulation for high-end processors and FPGAs.

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