Instant Quote

Home > Power Management ICs (PMIC) > DC-DC Converters > LM2576R-5.0

LM2576R-5.0

3A buck regulator, 5V fixed, 4-40V input, 52kHz, TO-263-5 D2PAK

13944

Effective Inventory
Go to Inquiry

Image for reference only

Manufacturer Part：

LM2576R-5.0

Package：

TO-263-5 (D2PAK) (10.7 x 9.6 x 4.6 mm)

Brand：
Product Categories：
Quality Commitment
Shipping & Payment
Service & Packaging
Product Manual
Other recommendations you may be interested in.

STM32F767ZIT6

NC7SZ32M5X

BQ76952PFBR

MCP4922-E/SL

FT230XS-R

BQ24192IRGER

TLV2211IDBVR

TLP185GB

Description

Product Overview

The LM2576R-5.0 from Texas Instruments is a 3A step-down switching voltage regulator with fixed 5.0V output in a TO-263 (D2PAK) surface-mount package. Operating from up to 40V input with 52kHz switching frequency, it requires minimal external components.

Key Specifications

Input Voltage 4V ~ 40V
Output Voltage 5.0V fixed (+/-4%)
Output Current 3A
Switching Frequency 52kHz
Efficiency 77% typical (VIN=12V, 3A)
Package TO-263-5 (D2PAK)
Operating Temperature -40°C to +125°C

Features

  • Fixed 5.0V output with +/-4% accuracy
  • 3A output with internal power switch
  • 52kHz fixed frequency internal oscillator
  • Thermal shutdown and current limit protection
  • Requires only 4 external components
  • Standby mode with <200uA quiescent current

Applications

  • Automotive 12V/24V to 5V conversion
  • Industrial distributed power systems
  • Battery-powered equipment power supply
  • Step-down regulation from high-voltage rails
  • Embedded system 5V power rails

The LM2576R-5.0 from Texas Instruments is a SIMPLE SWITCHER 3A step-down voltage regulator providing fixed 5.0V output from inputs up to 40V. It integrates all active functions including a 3A NPN power switch, oscillator, and control circuitry, requiring only an inductor, catch diode, and two capacitors. The 52kHz switching frequency allows standard inductors. Thermal shutdown and cycle-by-cycle current limiting provide robust operation. The TO-263 surface-mount package provides excellent thermal dissipation.

The LM2576R-5.0 uses fixed-frequency PWM control with a 52kHz internal oscillator. The output voltage is compared with an internal 1.23V reference. The error amplifier controls the duty cycle of the internal NPN power switch. When on, current flows from VIN through the inductor to the output, storing energy. When off, inductor current flows through the catch diode, releasing stored energy. The current limiting uses cycle-by-cycle peak current detection. Thermal shutdown disables the switch when junction temperature exceeds approximately 170°C.

Pin Name Type Function
1 VIN Power Input voltage (4-40V)
2 Output Power Switch output (inductor connection)
3 GND Power Ground
4 Feedback Input Output voltage sense
5 ON/OFF Input Shutdown control (low = on)
  • 12V/24V automotive battery to 5V conversion
  • Industrial 24V bus to 5V step-down regulation
  • Battery-powered instrument 5V power supply
  • Embedded system 5V rail from unregulated supply
  • LED strip 5V power from 12V adapter
Manufacturer Part Number Package Notes
TI LM2576T-5.0/NOPB TO-220 Through-hole version, 3A
TI LM2576HVS-5.0/NOPB TO-263 High-voltage (60V) version
onsemi NCV2576D2TG5 TO-263 Automotive qualified, pin-compatible
TI LM2676T-5.0 TO-220 3A, 260kHz, higher efficiency
Recommend Parts

BQ76952PFBR

3-16S battery monitor/protector, Li-Ion/LiFePO4, 2 ADCs, TQFP-48

Brand:

Package:

TQFP-48 (7 x 7 x 1.0 mm)
In stock:
2150pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

BQ24192IRGER

I2C 4.5A 1-cell Li-ion charger, NVDC power path, USB OTG, VQFN-24

Brand:

Package:

VQFN-24 (4.0 x 4.0 x 0.75 mm, with thermal pad)
In stock:
4182pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

TLV2211IDBVR

Single micropower RRIO op-amp, 2.7-10V, 65kHz, 11uA, SOT-23-5

Brand:

Package:

SOT-23-5 (2.9 x 2.8 x 1.15 mm)
In stock:
8750pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

SN74LVC1G08DBVR

Single 2-input AND gate, 1.65-5.5V, 24mA drive, SOT-23-5, LVC

Brand:

Package:

SOT-23-5 (2.9 x 1.6 x 1.15 mm)
In stock:
35000pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

SN74HC165DR

8-bit parallel-load shift register, PISO, 2-6V, 24 MHz, SOIC-16

Brand:

Package:

SOIC-16 (9.9 x 6.0 mm)
In stock:
4837pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

MC3486DR

Quad differential line receiver, EIA-422/423, 3-state TTL outputs, 5V, SOIC-16

Brand:

Package:

SOIC-16 (9.9 x 6.0 mm)
In stock:
0pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry
Quality Assurance

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Company
insights
Industries
All Products
Integrated Circuits
C&I Devices
Discrete
Memory Chips
MPUs & MCUs