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Name: LM25576MH/NOPB
Brand: Texas Instruments
SKU: LM25576MH/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments LM25576MH/NOPB

Part No.:: LM25576MH/NOPB

Manufacturer:: Texas Instruments

Package:: 20-PowerTSSOP (0.173, 4.40mm Width)

Datasheet:: LM25576MH/NOPB.pdf

Description:: IC REG BUCK ADJ 3A 20HTSSOP

In Stock:: 4707

Quantity:: Add To Cart

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LM25576MH/NOPB Specifications

Packaging:
Tube
Series:
SIMPLE SWITCHER®
ProductStatus:
Active
Function:
Step-Down
OutputConfiguration:
Positive
Topology:
Buck
OutputType:
Adjustable
NumberofOutputs:
1
Voltage-Input(Min):
6V
Voltage-Input(Max):
42V
Voltage-Output(Min/Fixed):
1.225V
Voltage-Output(Max):
40V
Current-Output:
3A
Frequency-Switching:
50kHz ~ 1MHz
SynchronousRectifier:
No
OperatingTemperature:
-40°C ~ 125°C (TJ)
MountingType:
Surface Mount

LM25576MH/NOPB this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LM25576MH/NOPB price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for LM25576MH/NOPB to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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LM25576MH/NOPB information

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LM25576MH/NOPB Typical application Circuitry

LM25576MH NOPB

LM25576MH/NOPB is a highly efficient, step-down switching regulator with advanced features and flexibility, making it well-suited for a wide range of applications. It integrates most of the components required for a buck converter, requiring minimal external components.

Applications:

LM25576MH/NOPB is commonly used in automotive systems, industrial applications, distributed power systems, and anywhere a high-efficiency voltage conversion is required from a higher voltage source to a lower voltage.

Key Parameters and Features:

- Wide Input Voltage Range: Capable of handling input voltages from 6V to 42V, making it versatile for various supply voltages.

- Adjustable Output Voltage: This feature provides a broad range of output voltages, which makes it appropriate for a variety of applications.

- Integrated Switch: Makes design and layout simpler by reducing the need for external components.

- Thermal Shutdown and Overcurrent Protection: Enhances reliability and longevity by protecting against excessive temperature and current.

Application Scenario: Automotive Power Supply

In an automotive power supply application, the LM25576MH/NOPB can be used to step down the vehicle's battery voltage to a lower voltage required by electronic components, such as sensors, microcontrollers, or communication modules.

Circuit Design Considerations:

1. Input Voltage Source: The design starts with the vehicle's battery voltage, typically ranging from 12V to 14V when the engine is running, but the LM25576MH/NOPB can handle transient voltages, making it ideal for automotive applications.

2. Output Voltage Setting: The output voltage is set by choosing appropriate resistors for the feedback network connected to the FB pin (Pin 6). These resistors determine the output voltage based on the feedback reference voltage.

3. Inductor Selection (L1): An essential part of a buck converter is the inductor. Its value affects the efficiency, output ripple, and transient response. An inductor with a suitable current rating and low DCR (DC resistance) should be selected to minimize losses.

4. Catch Diode (D1): A Schottky diode is typically used for its low forward voltage drop and fast recovery time. The diode should be placed between the SW pin (Pin 3) and ground, with a reverse voltage rating exceeding the maximum input voltage.

5. Output Capacitors (COUT): These capacitors filter the output voltage and reduce ripple. The choice of capacitance and ESR (Equivalent Series Resistance) values is crucial for stability and performance.

6. Bootstrap Capacitor (CBT): Connected between the BST pin (Pin 5) and the SW pin (Pin 3), this capacitor is essential for driving the internal high-side switch, ensuring efficient operation.

7. Compensation Components: Connected to the COMP pin (Pin 7), these components are vital for ensuring stability by compensating the feedback loop. Their values are selected based on the desired loop dynamics and load conditions.

Design Challenges:

- Electromagnetic interference (EMI) considerations: In vehicle settings, electromagnetic interference can pose a serious risk. Adherence to regulatory and functional standards may necessitate meticulous arrangement, shielding, and filtering.

- Thermal Management: The LM25576MH/NOPB can dissipate significant heat at high power levels. Adequate cooling, such as heatsinks or airflow, and thermal vias on the PCB can help manage this.

- Input Voltage Fluctuations: Automotive power supplies experience wide input voltage fluctuations. These variances must be taken into account in the design without sacrificing performance.

When designing with the LM25576MH/NOPB, it's crucial to address these considerations to achieve a robust, efficient, and reliable power supply suitable for the demanding automotive environment. Proper component selection, layout, and thermal management are key to leveraging the LM25576MH/NOPB's capabilities effectively.

LM25576MH/NOPB FAQ

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3. Are the LM25576MH/NOPB price and inventory displayed accurate?

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6. What is the process for return or replacement of LM25576MH/NOPB?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM25576MH/NOPB we delivered, we will accept the replacement or return of the LM25576MH/NOPB only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of LM25576MH/NOPB.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations