LM2576S-12/NOPB Texas Instruments Integrated Circuit (TO-XXX (Inc. DPAK)) In Stock
LM2576S-12/NOPB is a 40V, 3A step-down switching regulator with fixed 12V output, pulse width modulation control, and only 5 external components required. From $1.89, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- TO-XXX (Inc. DPAK)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM2576S-12/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8978(MOQ 45)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 12V output with ±4% accuracy across load and line variations
- Wide input voltage range from 4V to 40V supports diverse power supply designs
- 3A output current capability with internal current limiting for robust protection
- Requires only 5 external components, minimizing PCB space and BOM cost
- Built-in thermal shutdown and current limit protection for reliable operation
Applications
The LM2576S-12/NOPB is well-suited for industrial power supplies, automotive electronics, and embedded systems requiring a regulated 12V rail. Its TO-263 (D2PAK) surface-mount package and high efficiency make it ideal for battery-powered equipment, LED drivers, and distributed power architectures where board space and component count are critical constraints.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| 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 | 25V |
| JESD-30 Code | R-PSSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 37V |
| Output Voltage-Min | 3.3V |
| Output Voltage-Nom | 12V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP5H,.6,67TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 63kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | TO-XXX (Inc. DPAK) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2576S-12/NOPB:
Switching Regulator, Voltage-mode, 3A, 63kHz Switching Freq-Max, PSSO5
Frequently Asked Questions
What is the input voltage range of the LM2576S-12/NOPB?
The LM2576S-12/NOPB accepts an input voltage from 4V to 40V (nominal 25V), making it suitable for a wide range of DC power sources including 12V, 24V, and unregulated supplies up to 40V.
What output voltage and current does the LM2576S-12/NOPB provide?
It provides a fixed 12V regulated output with up to 3A continuous output current. The output voltage accuracy is ±4% over the full line, load, and temperature range, ensuring stable performance in demanding applications.
How many external components does the LM2576S-12/NOPB require?
The LM2576S-12/NOPB requires only 5 external components — an inductor, an output capacitor, an input capacitor, a catch diode, and a resistor — significantly simplifying PCB design compared to traditional discrete switcher designs.
What package does the LM2576S-12/NOPB use and is it RoHS compliant?
The LM2576S-12/NOPB uses a 5-pin TO-263 (D2PAK / R-PSSO-G5) surface-mount package, ideal for high-power SMD designs. It is Pb-free and RoHS compliant (JESD-609 Code e3), meeting modern environmental requirements.
What are typical applications for the LM2576S-12/NOPB?
Typical applications include industrial 12V power rails, automotive accessory power, microcontroller and processor power supplies, LED driver circuits, battery chargers, and any system needing an efficient, compact step-down regulator with minimal external components.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 45+ | $2.4200 | $108.90 |
| 90+ | $2.2900 | $206.10 |
| 98+ | $2.0520 | $201.10 |
| 127+ | $1.9749 | $250.81 |
| 159+ | $1.8978 | $301.75 |
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