LM25010Q1MHX/NOPB

Voltage - Output (Min/Fixed):	2.5V
Base Part Number:	LM25010
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:	100kHz ~ 1MHz
Current - Output:	1A
Voltage - Output (Max):	37V
Series:	Automotive, AEC-Q100
Voltage - Input (Max):	42V
Voltage - Input (Min):	6V
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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Overview of LM25010Q1MHX/NOPB

The LM25010Q1MHX/NOPB (or simply the LM25010) is a switching voltage regulator designed by Texas Instruments. It operates as a monolithic integrated circuit (IC), providing a cost-effective solution that reduces system size and component count. It works by efficiently converting the input voltage to steady, fixed output voltages while regulating high peak output currents — at up to a 95 percent frequency adjustable switching frequency, from 300kHz to 1.8MHz. It helps save energy, meets the most current requirements, and reduces the system size.

Features of LM25010Q1MHX/NOPB

The key features offered by the LM25010 make it valuable for applications such as power-conversion designs:

• Wide input voltage range from 4.5V to 40V
• High efficiency up to 95%
• 2.44A maximum output current
• Adjustable output voltage accuracy (±1.5% at 25°C)
• Low quiescent current of 5mA
• Soft-start/current-limit/thermal-shutdown protection

The LM25010 also features an integrated Schottky diode, which eliminates the need for an external output rectifier, further shrinking the circuit size and cost.

Application Field of LM25010Q1MHX/NOPB

The versatile LM25010 finds extensive use in a variety of power-control applications. Its wide input-voltage range, high efficiency, and adjustable output voltage accuracy make it suitable for a range of systems, including computers, consumer electronics, and industrial systems.

• Drones/Robotics: The LM25010 is used in robotics and unmanned aerial vehicle (UAV) applications due to its adjustable switching frequency, allowing for a better control of the system. It also helps reduce power losses and increases power efficiency.
• Smart Meters: The LM25010 is used in smart metering systems, in which it ensures an accurate system measurement and billing process. Its adjustable switching frequency helps control the power signal and maintain a steady output. It also has a low quiescent current, which is an important feature for a meter.
• LED Lighting: The LM25010 is used in LED lighting systems, due to its adjustable switching frequency, which allows users to optimize the system’s performance. Its high efficiency and thermal shutdown protection also help ensure a consistent output quality.

Working Principle of LM25010Q1MHX/NOPB

The LM25010 operates as a DC-DC switching regulator, which means it works by converting a DC input voltage to a regulated DC output voltage. It does this by controlling the switching of an electronic switch, either an N-channel MOSFET or a P-channel MOSFET. This electronic switch is connected in series with an inductor, which serves as a filter that smooths out the peaks and valleys of the output voltage waveform. The LM25010 also incorporates current- and voltage-limit logic, which helps protect against overcurrent and overvoltage conditions.The LM25010 regulator can operate in either a voltage-mode (V-mode) or current-mode (C-mode) control topology. In V-mode, the controller uses a feedback loop to adjust the output voltage to maintain a stable output waveform, while in C-mode, it uses the load current as the feedback signal to adjust the output voltage. The LM25010 also has an adjustable switching frequency, which allows for a better control of the system. This can help optimize system performance and reduce power losses.

Conclusion

The LM25010Q1MHX/NOPB is a monolithic, cost-effective switching voltage regulator designed by Texas Instruments. It is suitable for a variety of applications, such as drones/robotics, smart meters, and LED lighting systems. Its wide input voltage range, high efficiency, adjustable output voltage accuracy, and adjustable switching frequency make it valuable for system optimization and power-conversion designs. It also has overcurrent and overvoltage protection and a low quiescent current of 5mA, helping to ensure system safety.

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