UMW LM2576S-ADJ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.00 | $1.00 |
| 15+ | $0.97 | $14.55 |
| 25+ | $0.95 | $23.75 |
| 50+ | $0.89 | $44.50 |
| 100+ | $0.79 | $79.00 |
| N+ | $0.16 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | UMW |
| Product Series | LM2576 |
| Packaging | Cut Tape (CT) | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | - |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | - |
| Voltage - Output (Max) | 37V |
| Current - Output | 3A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263-5L |
| ROHS |  |
The LM2576S-ADJ is a high-current Buck DC-DC converter designed for applications requiring up to 3A. It operates from a wide input voltage up to 40V and provides an adjustable output voltage up to 37V. The fixed 52kHz switching frequency offers a good balance between efficiency and component size, allowing for the use of cost-effective inductors. This converter is a simple, reliable solution for high-power step-down applications in automotive, industrial, and networking systems. Its robust design and minimal external component requirement make it a popular choice for board-level power design.
- High Output Current: Delivers up to 3A, making it suitable for powering high-current loads like FPGAs, motors, and multiple peripherals.
- Wide Input Voltage: Accepts up to 40V, providing excellent margin for automotive and industrial power transients.
- High Efficiency: The 52kHz switching frequency is optimized for efficiency, reducing heat dissipation and improving system reliability.
- Simple and Robust: Requires minimal external components and is based on a proven, widely-used design, ensuring ease of implementation and long-term reliability.
High-Current 5V/12V Rails
Ideal for generating a 3A regulated rail from a 12V or 24V source. The 52kHz frequency is optimized for efficiency with larger inductors, making it suitable for power-hungry logic, FPGAs, and peripheral loads.
Automotive Infotainment
Powers head units, amplifiers, and display systems directly from the car battery. The 40V input tolerance handles cranking and load-dump transients, while the 3A output supports multiple subsystems.
Industrial Power Supplies
Provides a robust, high-current supply for PLCs, motor controllers, and industrial sensors from a 24V or 36V bus. The simple design and D2PAK package ensure reliable operation in high-vibration, high-temperature environments.
Battery Chargers
Can be configured as a constant-voltage/constant-current charger for lead-acid or Li-Ion batteries. The adjustable output (up to 37V) and 3A current capability make it versatile for various battery chemistries.
Networking and Telecom
Steps down 24V or 48V (with derating) to power routers, switches, and base stations. The high current capacity supports multiple line cards and high-speed data processing circuits.
- Q: What type of converter is the LM2576S-ADJ?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the maximum input voltage?
- A: The maximum input voltage is 40V.
- Q: What is the output voltage range?
- A: The output is adjustable up to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of load current.
- Q: What is the switching frequency?
- A: The fixed switching frequency is 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package with 5 leads plus tab.
LM2576S-ADJ.pdf
- Q: What type of converter is the LM2576S-ADJ?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the maximum input voltage?
- A: The maximum input voltage is 40V.
- Q: What is the output voltage range?
- A: The output is adjustable up to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of load current.
- Q: What is the switching frequency?
- A: The fixed switching frequency is 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package with 5 leads plus tab.
