LM2678T-ADJ

Voltage - Output (Min/Fixed):	1.21V
Base Part Number:	LM2678
Supplier Device Package:	TO-220-7
Package / Case:	TO-220-7 (Formed Leads)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	260kHz
Current - Output:	5A
Voltage - Output (Max):	37V
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	40V
Voltage - Input (Min):	8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Not For New Designs
Packaging:	Tube

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The LM2678T-ADJ is a DC/DC switching regulator noted for its performance, ease of use and small size. This combination of features makes it ideal for a wide range of applications.The LM2678T-ADJ is specified to operate from a +2.5 to +40V input voltage range and provides user adjustable output voltage from +1.210V to +39V. This widest input voltage range allows for use in a variety of applications.The regulator uses a synchronous PWM architecture for optimal power conversion and an external compensation network for high performance and stable output voltage. The LM2678T-ADJ also features an internal over-temperature protection circuit and a power-good output signal.The LM2678T-ADJ is a 2-A step-down voltage regulator with an adjustable reference current of up to 1.5 A. This allows it to provide output voltages as low as 1.210V with greater accuracy than a conventional fixed-output regulator. The regulator itself is designed to provide a wide range of output voltages that can be adjusted to specific requirements.The LM2678T-ADJ operates using a buck topology, using an external N-channel MOSFET for switching current through the output terminal. The regulator has an Internal maximum duty cycle of 96%. The internal MOSFET provides advantages such as low on-resistance, low conduction losses and a high degree of temperature stability.The LM2678T-ADJ regulator also offers excellent ripple rejection, providing up to 78dB of rejection for feedback signals. The internal error-amplifier capabilities allow for precise output regulation with a low internal power dissipated. The device also features a wide operating temperature range from –40°C to +90°C.The LM2678T-ADJ is well-suited for use in a variety of applications, ranging from computer power supplies and telecommunications systems to industrial, automotive, and portable applications. It can also be used in battery charging systems and automotive interface applications.In conclusion, the LM2678T-ADJ is an ideal choice for high-performance and high-reliability voltage regulation in a wide range of applications. Its wide input voltage range, precise output voltage, the high output current, and low noise make it suitable for many different applications. The LM2678T-ADJ offers excellent performance, allowing for precise voltage regulation over a wide range of operating temperatures, input voltages and loads. With its turbo-charge technology and advanced power management features, the device provides reliable and efficient performance for most applications.

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