LM2576-5.0WT

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LM2576-5.0WT

52KHZ SIMPLE 3A BUCK REGULATOR

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Specifications

Package Bulk
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) 5V
Current-Output 3A
Frequency-Switching 52kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Through Hole
Package/Case TO-220-5

Overview

Description

LM2576-5.0WT is the fixed-output (5 V) version of the LM2576 family. It is a 3-A, non-synchronous buck (step-down) switching regulator with an integrated high-side switch. It requires a few external parts to form a complete converter: a fast Schottky diode, an inductor, and input/output capacitors. It operates from about 4 V to 40 V input and delivers a regulated 5 V up to 3 A. Switching frequency is around 52 kHz, enabling compact external components; typical efficiency varies with input and load (roughly 75–90%). A typical app circuit uses an inductor in the tens to hundreds of µH range, a diode, and capacitors for input and output filtering. The WT suffix denotes a specific packaging/ordering variant (check the datasheet for exact package details). The device includes protections such as current limit and thermal shutdown, making it suitable for simple, low-cost buck conversion.

Features

Key features of LM2576-5.0WT (fixed 5V version):
- Fixed output: 5.0 V, up to 3 A
- Buck regulator with internal switch
- Input voltage range: 4–40 V
- Fixed switching frequency: ~52 kHz
- High efficiency (typical ~75–90% depending on conditions)
- Protection: internal current limit and thermal shutdown
- Minimal external parts: requires inductor, catch diode (Schottky), and input/output capacitors
- Easy, compact design suitable for automotive and general DC-DC use
- Package: TO-220-style (WT variant), tab connected to output; RoHS-compliant

Package

TO-220 style package (three pins plus tab, through-hole).

Pinout

- Pin count: 5
- Pin functions (TO-220 style, front view, left to right):
1) Vin — input supply
2) Output — switching node (goes to inductor/diode network)
3) Ground
4) Feedback — sense input (for fixed 5.0V version, internal divider handles regulation)
5) On/Off — enable control
Note: LM2576-5.0WT is a 5V fixed-output, 3A step-down (buck) regulator.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures a broad range of integrated circuits (analog, digital, microcontrollers, and embedded processing) and is one of the world’s largest semiconductor firms.

Application

LM2576‑5.0WT is a 3 A fixed 5 V buck regulator. Common application areas:
- Automotive/industrial power supplies (12–24 V to 5 V)
- Telecom/networking and computer equipment rails
- Embedded systems and microcontroller boards needing 5 V
- Simple, low-cost DC–DC converters from up to 40 V input (batteries, wall adapters)
- Hobbyist projects and compact 5 V power modules

Equivalent

Common equivalents to LM2576-5.0WT (fixed 5V buck regulators):
- LM2596-5.0 (3A fixed 5V)
- LM2676-5.0 (fixed 5V, 3A)
- LM2576-5.0 (same family, different suffix/footprint)
- XL2576-5.0 / XL2576S-5.0 (clones)
- MP1584EN (3A buck)
- MP2307DN (3A buck)
Note: pinouts and external components differ; verify datasheets and footprints before substitution.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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