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Name: LM2576SX-3.3/NOPB
Brand: Texas Instruments
SKU: LM2576SX-3.3/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments LM2576SX-3.3/NOPB

Part No.:: LM2576SX-3.3/NOPB

Manufacturer:: Texas Instruments

Package:: TO-263-6, D²Pak (5 Leads + Tab), TO-263BA

Datasheet:: LM2576SX-3.3/NOPB.pdf

Description:: IC REG BUCK 3.3V 3A TO263-5

In Stock:: 3994

Quantity:: Add To Cart

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LM2576SX-3.3/NOPB Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
SIMPLE SWITCHER®
ProductStatus:
Active
Function:
Step-Down
OutputConfiguration:
Positive
Topology:
Buck
OutputType:
Fixed
NumberofOutputs:
1
Voltage-Input(Min):
4V
Voltage-Input(Max):
40V
Voltage-Output(Min/Fixed):
3.3V
Voltage-Output(Max):
-
Current-Output:
3A
Frequency-Switching:
52kHz
SynchronousRectifier:
No
OperatingTemperature:
-40°C ~ 125°C (TJ)
MountingType:
Surface Mount

LM2576SX-3.3/NOPB this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LM2576SX-3.3/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 LM2576SX-3.3/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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LM2576SX-3.3/NOPB information

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LM2576SX-3.3/NOPB Typical application Circuitry

LM2576SX-3.3/NOPB

The LM2576SX-3.3/NOPB is part of the LM2576 series of integrated circuits, which are monolithic integrated circuits designed as step-down (buck) voltage regulators. They have good line and load control and can drive a 3A load. These regulators are strong and dependable for a broad range of applications, and they are easy to use with features like an internal frequency correction and a fixed-frequency oscillator.

1. Pin Connections:

- Pin 1 (Vin): This is the input voltage pin for the LM2576SX-3.3/NOPB. Connect this pin to your source voltage, which should be higher than 3.3V and typically up to 40V.

- Pin 2 (Output): The output pin delivers the regulated 3.3V. Attach this pin to one end of an inductor (L) and your load.- Pin 3 (Ground): Attach this pin straight to your circuit's ground.

- Pin 4 (Feedback (FB)): Since the LM2576SX-3.3/NOPB is a fixed output version, this pin is typically not used as the feedback is internally set for 3.3V output.

- Pin 5 (On/Off): This enables or disables the regulator. Connect it to a logic high level to enable the LM2576SX-3.3/NOPB, or to logic low level to turn it off. If constant operation is needed, it can be tied directly to the Vin pin.

2. External Components:

- Inductor (L): Place an inductor between the output pin (Pin 2) and the load. The value of this inductor can typically range from 33 µH to 100 µH, with a current rating that exceeds the maximum load current.

- Diode (D): Connect a Schottky or fast-recovery diode from the output pin (Pin 2) to Vin (Pin 1), with the anode on the output side. This diode should be rated for at least the maximum output current and a reverse voltage at least as high as the maximum input voltage.

- Input Capacitor (Cin): A capacitor should be connected close to the Vin (Pin 1) and Ground (Pin 3) pins of the LM2576SX-3.3/NOPB. This capacitor should be a low ESR type and have a value of approximately 100 µF.

- Output Capacitor (Cout): Place a capacitor between the output pin (Pin 2) and ground to improve stability and transient response. The value can be around 1000 µF, also low ESR type.

3. Heatsinking:

- The LM2576SX-3.3/NOPB comes in a TO-263 package, which typically requires a heatsink if the output current is high or if the input-output voltage differential is large, in order to maintain thermal performance and prevent overheating.

When connecting the LM2576SX-3.3/NOPB, it's essential to follow good engineering practices such as keeping the input and output capacitors close to the device pins, using a ground plane for thermal dissipation, and minimizing the length of the paths connecting the inductor and diode to reduce EMI (Electromagnetic Interference).

Remember that the LM2576SX-3.3/NOPB is a robust component but it's still critical to consider all electrical parameters and thermal limits during the design to ensure reliable operation in your application.

LM2576SX-3.3/NOPB FAQ

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6. What is the process for return or replacement of LM2576SX-3.3/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 LM2576SX-3.3/NOPB we delivered, we will accept the replacement or return of the LM2576SX-3.3/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 LM2576SX-3.3/NOPB.

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

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(2)Obtain Requesting Return Authorizations