LM2700MTX-ADJ

Voltage - Output (Min/Fixed):	1.26V
Base Part Number:	LM2700
Supplier Device Package:	14-TSSOP
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	600kHz, 1.25MHz
Current - Output:	2.55A (Switch)
Voltage - Output (Max):	17.5V
Series:	--
Voltage - Input (Max):	12V
Voltage - Input (Min):	2.2V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The LM2700MTX-ADJ is a single-supply, step-down, DC-DC switching regulator designed for automotive and industrial applications. It provides a constant voltage output regardless of the input supply voltage, making it ideal for applications where the input supply voltage can fluctuate, such as in automotive battery applications. The LM2700MTX-ADJ offers a wide output voltage range of 0.9V to 24V and can be used to create either a positive or a negative output voltage.

Application Fields

The LM2700MTX-ADJ is suitable for a wide range of automotive and industrial applications, such as powering DC motors, radio equipment, or other electronic devices that require a stable output voltage. It is also well-suited for battery-powered applications where the input supply voltage can vary, such as in automotive systems. It can also be used in solar-powered systems, where the input voltage can vary widely due to changes in sunlight intensity.

Features

The LM2700MTX-ADJ offers a wide range of features, including:- Adjustable output voltage range of 0.9V to 24V- High efficiency of up to 97%- Low standby current of <2mA- External compensation for improved output voltage stability- Over-current, over-temperature, and short-circuit protection- Over-voltage protection for open or shorted outputs- Internal soft start for inrush-current reduction

Working Principle

The LM2700MTX-ADJ operates on a standard switching regulator topology, using two external MOSFETs to switch the output voltage. This topology keeps the output voltage constant, regardless of input voltage variations. The LM2700MTX-ADJ uses a high frequency switching frequency, typically ranging from 200kHz to 1.8MHz, to ensure high efficiency and fast transient response.The device features an external compensation network that enables optimal transient performance and helps ensure stable operation. It also has an internal soft-start circuit that gradually ramps up the output voltage, reducing inrush current and preventing overloads on connected circuits.The LM2700MTX-ADJ includes various safety features to protect against fault conditions, such as an over-current protection for short-circuit or overload protection, over-voltage protection for open or shorted outputs, and internal thermal shutdown for over-temperature protection.

Conclusion

The LM2700MTX-ADJ is a high-efficiency, single-supply, step-down, DC-DC switching regulator that is well-suited for a wide range of automotive and industrial applications. It offers a wide output voltage range and high efficiency, along with over-current and over-temperature protection to ensure safe operation. Its external compensation network ensures optimal transient performance and its internal soft-start circuit reduces inrush current and prevents overloads. Its features make it an ideal choice for automotive and industrial applications that require a stable output voltage.

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