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Exact specifications should be obtained from the product data sheet.
| Manufacturer Product Number | LM2577T-12/LB03 |
| Manufacturer | Texas Instruments |
| NavitasChip Part Number | NAVI-3902511 |
| Description | IC REG BST FLYBCK 12V 3A TO220-5 |
| Spec | TO-220-5 Formed Leads |
| Package | Tube |
| Datasheet | Datasheet |
Product Attributes
| Type | Description |
|---|---|
| Category | Voltage Regulators - DC DC Switching Regulators |
| Manufacturer | Texas Instruments |
| Package | Tube |
| Product Status | Obsolete |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, Forward Converter |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 12V |
| Current - Output | 3A (Switch) |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Through Hole |
| Supplier Device Package | TO-220-5 |
| Part Status | Active |
Documents & Media
| Resource Type | Link |
|---|---|
| Datasheet | Texas Instruments LM2577T-12/LB03 Datasheet |
| Product Image | View Large Image |
Environmental & Export Classifications
| Attribute | Description |
|---|---|
| RoHS Status | |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
Product Description
The LM2577T-12/LB03 is a DC-DC Switching Voltage Regulator manufactured by Texas Instruments (TI). Integrated Circuit Regulator Bst Flybck 12V Supply 3a in 5-Pin To220 Package, housed in a compact TO-220-5 package.
Don't let end-of-life buck converter transition without board redesign slow down your production. We maintain ready stock for critical components.
Key Technical Specifications
- Output Type: Fixed
- Operating Temperature: -40°C ~ 125°C (TJ)
- Mounting: Through Hole
- Package: TO-220-5 Formed Leads
- Device Package: TO-220-5
Applications
Ideal solution for:
- industrial automation
- professional equipment
- inverting converter and negative voltage rail generation
- flyback isolated DC-DC conversion for off-line power
Why Choose NavitasChip for LM2577T-12/LB03?
NavitasChip offers competitive market pricing for the LM2577T-12/LB03 and thousands of other electronic components.
- Availability: Ready to Ship
- Packaging: Available in factory Tube or Custom Tube Quantity. All custom quantities are professionally repackaged with ESD Shielding and Vacuum-Sealed MBB (Moisture Barrier Bags) in strict adherence to MSL standards.
- Fast Shipping: Ships from Shenzhen / Hong Kong / Singapore via DHL/FedEx/UPS
- Quality Assurance: Inbound check with MPN and Date Code review
- Technical Support: Datasheet and compliance documentation available
Global Shipping
Fast LM2577T-12/LB03 delivery to Taiwan and Singapore via DHL, FedEx, and UPS.
LM2577T-12/LB03 - Inquire for bulk discount.
Disclaimer: NavitasChip is an independent distributor of electronic components. We are not affiliated with, endorsed by, or an authorized distributor for the manufacturers listed on this page. All trademarks and brand names are the property of their respective owners and are used solely for identification purposes.
Stock quantities are dynamic and updated in real-time. For large quantity orders (1,000+ units), please contact us for real-time stock verification and custom pricing.
More from Texas Instruments
More in Voltage Regulators - DC DC Switching Regulators
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Note: Customers are responsible for all customs duties, taxes, or other charges. NavitasChip is not responsible for any additional fees after the package is shipped.
Shipping Methods
We offer shipping services via DHL, FedEx, UPS, and SF Express.
Delivery Time
- Spot Stock (HK/SZ warehouse): Ships within 24 hours when order confirmed before 14:00 GMT+8.
- Verified Supplier Network: Ships within 3 business days after sourcing confirmation.
- Out-of-stock items: Lead times provided per quote (typically 2-4 weeks).
- Actual delivery time depends on your selected courier service (DHL/FedEx/UPS/SF Express).
Quality Assurance
- 60-Day Quality Pledge — every order covered against material defects
- Third-Party Lab Testing available (AS6081 Process Aligned, ISO/IEC 17025 verification)
- RoHS / REACH Compliance verified through OCM official databases
- Distributor Certificate of Conformance (CoC) issued with every shipment
In Stock: 6,214 pcs
Ready to ship immediately
Lead Time
18 Weeks
Factory standard
Need a quote? We'll respond within 24 hours.
Payment Methods
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Delivery Services
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SF