LM2576T-ADJ Texas Instruments Integrated Circuit (Other) In Stock
The LM2576T-ADJ is a 3A adjustable step-down switching regulator IC from Texas Instruments, featuring 1.23V–38.48V output range, 52kHz fixed frequency PWM control, and up to 40V input voltage. From $0.82, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- LM2576T-ADJ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8201(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3A output current capability with adjustable output voltage from 1.23V to 38.48V via external resistor divider
- 52kHz fixed-frequency PWM voltage-mode control minimizes external filter component size
- Wide input voltage range of 4V to 40V supports diverse power supply designs
- Built-in frequency compensation and soft-start reduces design complexity
- TO-220-5 package with internal current limiting and thermal shutdown protection
Applications
The LM2576T-ADJ is widely used in battery-powered portable equipment, industrial power supplies, and embedded systems requiring efficient DC-DC step-down conversion. Its adjustable output makes it suitable for powering microcontrollers, FPGAs, and analog circuits from higher rail voltages such as 12V or 24V. It is also commonly deployed in telecommunications infrastructure, automotive electronics, and LED driver circuits where regulated, efficient power delivery is critical.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1992-01-01 |
| YTEOL | 0 |
| Additional Feature | ALSO AVAILABLE IN ADJUSTABLE MODE FROM 1.23 TO 38.48 VOLT |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PSFM-T5 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 37V |
| Output Voltage-Min | 3.3V |
| Output Voltage-Nom | 1.23V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 63kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| ## LM2576T-ADJ Alternates Showing results | Image |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2576T-ADJ:
Switching Regulator, Voltage-mode, 3A, 63kHz Switching Freq-Max, PSFM5
suggested
Switching Regulator, Voltage-mode, 3A, 63kHz Switching Freq-Max
Frequently Asked Questions
What is the output voltage range of the LM2576T-ADJ?
The LM2576T-ADJ supports an adjustable output voltage from 1.23V to 38.48V, set by an external resistor divider connected to the feedback pin. This flexibility makes it suitable for powering a wide range of loads from low-voltage digital circuits to higher-voltage analog stages.
What are the input voltage and current specifications of the LM2576T-ADJ?
The LM2576T-ADJ accepts an input voltage from 4V minimum to 40V maximum, with a nominal operating voltage of 12V. It delivers up to 3A continuous output current, making it well suited for medium-power step-down (buck) converter applications in industrial and consumer electronics designs.
What package does the LM2576T-ADJ come in, and is it RoHS compliant?
The LM2576T-ADJ is available in a TO-220-5 through-hole package, which provides good thermal dissipation for up to 3A loads. It is Pb-free (RoHS compliant) as indicated by the Pbfree Code: Yes specification, making it suitable for designs requiring compliance with environmental regulations.
Can the LM2576T-ADJ replace fixed-voltage variants like LM2576T-5.0 or LM2576T-3.3?
Yes, the LM2576T-ADJ can substitute for fixed-voltage versions such as the LM2576T-5.0 (5V) or LM2576T-3.3 (3.3V) by setting the appropriate output voltage via external resistors. This makes it a versatile alternative when a specific fixed-voltage variant is unavailable, while maintaining identical 3A current capacity and 40V input rating.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.4170 | $2.42 |
| 36+ | $1.3950 | $50.22 |
| 50+ | $0.9334 | $46.67 |
| 230+ | $0.8868 | $203.96 |
| 295+ | $0.8534 | $251.75 |
| 370+ | $0.8201 | $303.44 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”