LM76002QRNPTQ1

Voltage - Input (Max):	60V
Supplier Device Package:	30-WQFN (6x4)
Package / Case:	30-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	300kHz ~ 2.2MHz
Current - Output:	2.5A
Voltage - Output (Max):	57V
Voltage - Output (Min/Fixed):	1V
Series:	Automotive, AEC-Q100
Voltage - Input (Min):	3.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LM76002QRNPTQ1 is a part of a series of highly efficient, wide input voltage range switching regulators. It is a part of Texas Instruments’ Power Management Integrated Circuits (PMICs) portfolio.The LM76002QRNPTQ1 is categorized as a Buck converter, a type of DC-DC switching regulator. Buck converters are popular due to their simple and efficient design, allowing for accurate and stable output voltage and current at varying input voltages. This makes buck converters an ideal choice for a wide range of applications.

Application Field

The LM76002QRNPTQ1 switching regulator is designed for a broad range of power supply applications. It is ideal for developing power supplies in consumer electronics, telecommunication, industrial, and automotive applications that require a wide input voltage range and high conversion efficiency.For example, the LM76002QRNPTQ1 can be used to develop a buck converter power supply to support a low-voltage fuel gauge in automotive applications. It can also be used to develop a buck converter power supply to support a 5V circuit, operating off of a wide range of input voltages, in consumer electronics products such as mobile phones.

Working Principle

The working principle of the LM76002QRNPTQ1 can be divided into five distinct stages.The first stage is the input rectification, where the DC input voltage is rectified from the AC mains voltage with input voltage sensing, current sensing, and EMI filtering.The second stage is PWM modulation, where a PWM control chip generates a pulse-width-modulated (PWM) signal. This signal is fed to the oscillator, and the LM76002QRNPTQ1 is switched between the two output voltage ranges.The third stage is the output stage, where the output transistors process the output voltage, current, and power within the feedback loop, switching between two output voltage ranges.The fourth stage is the power stage, where the LM76002QRNPTQ1 will convert input power to the required output power.The fifth and final stage is the feedback loop, which compares the actual output voltage to the desired output voltage, and the LM76002QRNPTQ1 adjusts its output voltage accordingly.

Conclusion

The LM76002QRNPTQ1 is a highly efficient, wide input voltage range switching regulator from Texas Instruments Power Management Integrated Circuits portfolio. It is suitable for a broad range of power supply applications such as consumer electronics, telecommunication, industrial, and automotive, requiring a wide input voltage range and high conversion efficiency.The LM76002QRNPTQ1 operates on a five stage working principle, converting an input power to an output power, with built-in feedback loop to ensure accurate and stable output voltage and current. With the LM76002QRNPTQ1, designers can develop reliable, efficient and cost-effective power supplies required in their applications.

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