LM2695MHX/NOPB

Voltage - Output (Min/Fixed):	2.5V
Base Part Number:	LM2695
Supplier Device Package:	14-HTSSOP
Package / Case:	14-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	--
Current - Output:	1.25A
Voltage - Output (Max):	24V
Series:	--
Voltage - Input (Max):	30V
Voltage - Input (Min):	8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The LM2695MHX/NOPB is a monolithic switch mode DC-DC volt regulator. It operates in a wide range of input voltage and output voltage, with a high efficiency up to 95%. It has built-in soft start and fast transient response, making it ideal for cost-effective and high-performance power supply applications. The chip is available in a 5-pin SOT-23 package.

Application Field and Working Principle

The LM2695MHX/NOPB is used typically in low-noise power supply design, especially in portable applications. It is also used in automotive audio amplifiers, as well as automotive and industrial power supply applications where high efficiency is essential. It offers high power supply stability and good regulation accuracy, allowing it to be used in precision power supply designs.The LM2695MHX/NOPB works by regulating an input voltage and outputting a precise voltage, as set by its voltage feedback and regulating circuits. The regulating circuit consists of a pulse-width-modulated (PWM) controller, an amplifier, and an error detector. The PWM controller sets the switching frequency, and the error detector works by detecting changes in the output voltage, comparing it against the reference voltage, and then driving the amplifier to correct the errors.When the input voltage drops, the sensing circuit is activated, causing the PWM controller to increase the switching frequency, resulting in a higher output voltage. The feedback and regulation circuit maintains a stable output voltage. The amount of power being outputted can be adjusted using a resistor or pulse-width modulation.

Features

The LM2695MHX/NOPB has several features that make it suitable for a wide range of applications. One of its most prominent features is its high switching frequency of up to 1 MHz. This allows it to deliver a high output power at a low input voltage.The chip also has built-in soft start and fast transient response, which allows it to quickly adjust switching frequency upon input voltage changes. This makes it ideal for cost-effective and high-performance power supply applications.In addition, the LM2695MHX/NOPB has a wide operating temperature range, allowing it to be used in high-temperature applications. It also has high efficiency up to 95%, and a low quiescent current of 2.5 mA.

Conclusion

The LM2695MHX/NOPB is an ideal choice for low-noise power supply design, especially in portable applications. It can also be used in automotive audio amplifiers, as well as automotive and industrial power supply applications requiring high efficiency. The chip has a fast transient response, wide operating temperature range, and high efficiency. It is available in a 5-pin SOT-23 package, allowing for easy integration into a wide range of applications.

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