LM2576HVT-15LB03 Texas Instruments Transistor (Transistor Outline, Vertical) In Stock
Step-down DC-DC switching regulator from Texas Instruments delivering a fixed 15V output at up to 3A from a 4V to 60V input range. Designed for efficient voltage conversion in high-voltage power supplies using a simple external inductor and capacitor. Available in a 5-pin TO-220 through-hole package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Transistor Outline, Vertical
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LM2576HVT-15LB03 Datasheet PDF
- Category
- Transistor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4V to 60V input range supports operation across diverse power sources including automotive 12V/24V systems and industrial 48V rails with fixed 15V regulated output
- 3A continuous output current in a TO-220 package with integrated tab provides sufficient drive capability for powering mid-power embedded systems and analog signal conditioning circuits
- Simple step-down topology requiring only an external inductor, diode, and capacitor minimizes external component count and simplifies PCB layout for efficient 15V regulation
Applications
The LM2576HVT-15LB03 is used in industrial power supplies, automotive accessory controllers, and embedded systems requiring a regulated 15V rail from higher-voltage sources such as 24V or 48V bus systems. Its wide input range and 3A current capability make it ideal for powering linear amplifiers, relay drivers, and microcontroller supply rails in harsh-environment control panels. The TO-220 through-hole package is well-suited for high-power prototyping boards and applications that benefit from easy heat sinking.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and current rating of the LM2576HVT-15LB03?
The LM2576HVT-15LB03 provides a fixed 15V output voltage with a maximum continuous output current of 3A. This makes it suitable for powering analog circuits, relay coils, and microcontroller boards from higher-voltage bus sources in industrial and automotive power conditioning applications.
What is the input voltage range of the LM2576HVT-15LB03?
The LM2576HVT-15LB03 accepts an input voltage range from 4V to 60V. This wide HV-rated input range enables direct use with 12V automotive batteries, 24V and 48V industrial power rails, and even unregulated higher-voltage DC sources, making it a versatile step-down regulator for diverse power conversion scenarios.
What external components are needed with the LM2576HVT-15LB03?
The LM2576HVT-15LB03 requires only a few external passive components: a catch diode, an output inductor, and output filter capacitor to form a complete step-down regulator circuit. This minimal external component requirement simplifies PCB layout and reduces total bill of materials cost compared to discrete switching power supply designs.
What package is the LM2576HVT-15LB03 available in?
The LM2576HVT-15LB03 is available in a 5-pin TO-220 through-hole package with an integrated mounting tab for heat sinking. This package allows straightforward attachment of an external heatsink to manage thermal dissipation at full 3A load, making it practical for industrial and automotive power supply designs operating in elevated ambient temperatures.
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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.
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