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LM2575HVT-5.0/NOPB
Texas Instruments
IC REG BUCK 5V 1A TO220-5
4684 Pcs New Original In Stock
Buck Switching Regulator IC Positive Fixed 5V 1 Output 1A TO-220-5
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5.0 / 5.0
- (178 Ratings)
LM2575HVT-5.0/NOPB
Product Overview
1285603
DiGi Electronics Part Number
LM2575HVT-5.0/NOPB-DGManufacturer
Texas Instruments
LM2575HVT-5.0/NOPB
Description
IC REG BUCK 5V 1A TO220-5Inventory
4684 Pcs New Original In Stock
Buck Switching Regulator IC Positive Fixed 5V 1 Output 1A TO-220-5
Quantity
Minimum 1
Minimum 1
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LM2575HVT-5.0/NOPB Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Tube
Series
SIMPLE SWITCHER®
Product Status
Active
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Output Type
Fixed
Number of Outputs
1
Voltage - Input (Min)
4V
Voltage - Input (Max)
60V
Voltage - Output (Min/Fixed)
5V
Voltage - Output (Max)
-
Current - Output
1A
Frequency - Switching
52kHz
Synchronous Rectifier
No
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Through Hole
Package / Case
TO-220-5
Supplier Device Package
TO-220-5
Base Product Number
LM2575
Datasheet & Documents
Manufacturer Product Page
LM2575HVT-5.0/NOPB Specifications
HTML Datasheet
LM2575HVT-5.0/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
NATNSCLM2575HVT-5.0/NOPB
2156-LM2575HVT-5.0/NOPB-TI
-LM2575HVT-5.0/NOPB-DG
LM2575HVT-5.0-NDR
*LM2575HVT-5.0/NOPB
LM2575HVT50NOPB
-LM2575HVT
Standard Package
45
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
포장 패키지가 견고해서 제품이 전혀 손상되지 않았어요. 배송도 정시에 이루어져서 추천합니다.
Dec 02, 2025
包裝的用心程度讓我感受到企業對客戶的重視。
Dec 02, 2025
The customer service at DiGi Electronics is truly outstanding, always professional and attentive.
Dec 02, 2025
The rapid dispatch from DiGi Electronics ensures I stay ahead of my project schedule without worrying about delays.
Dec 02, 2025
Their after-sales support has helped me maximize the value of my purchases.
Dec 02, 2025
The online platform is user-friendly, with detailed product descriptions and helpful customer reviews that aid decision-making.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the LM2575HVT-5.0/NOPB in a high-input-voltage industrial application, and how can they be mitigated?
When using the LM2575HVT-5.0/NOPB in high-input-voltage scenarios (e.g., 48V systems), the primary risk is excessive power dissipation due to its non-synchronous buck topology and fixed 52kHz switching frequency. At high VIN-VOUT differentials, conduction and switching losses increase, potentially exceeding thermal limits even below 1A load. To mitigate, ensure a minimum copper area of 1 square inch for heatsinking on PCB, use short high-current traces, and consider derating current to 700–800mA in still air above 75°C ambient. Also, verify diode (e.g., MBR160) and input capacitor ratings for repeated surge transients common in industrial environments to maintain long-term reliability of the LM2575HVT-5.0/NOPB-based design.
Can the LM2575HVT-5.0/NOPB replace the LM7805 in a 12V-to-5V linear power supply upgrade, and what layout changes are required?
Yes, the LM2575HVT-5.0/NOPB can effectively replace an LM7805 in a 12V-to-5V upgrade, offering up to 85% efficiency versus ~40% in linear regulation. However, key layout changes are crucial: you must add a rectifier diode (e.g., MBR360), an output inductor (e.g., 100μH, 1.5A), and proper input/output filtering per TI's datasheet guidelines. Unlike the LM7805, the LM2575HVT-5.0/NOPB is a switching regulator requiring careful PCB layout—keep the high-current switch loop (VIN, LM2575HVT-5.0/NOPB, diode, ground) as compact as possible to minimize EMI. Also, avoid sharing the ground of the feedback pin with high-current paths to prevent instability in the LM2575HVT-5.0/NOPB circuit.
How does the LM2575HVT-5.0/NOPB compare to the LM2596-5.0 in terms of load transient response and reliability in automotive environments?
The LM2575HVT-5.0/NOPB has slower load transient response than the LM2596-5.0 due to its older current-mode control architecture and lower 52kHz switching frequency, resulting in larger output voltage deviations during fast load changes. However, the LM2575HVT-5.0/NOPB offers superior thermal stability and ruggedness with its TO-220 package and established SIMPLE SWITCHER® reliability, making it more suitable for harsh automotive under-hood applications where temperature cycles and vibration are critical. The LM2575HVT-5.0/NOPB also lacks integrated compensation components, requiring external design care, but this can improve long-term field reliability versus monolithic solutions prone to over-temperature shutdown. Use low-ESR electrolytic or hybrid polymer caps with the LM2575HVT-5.0/NOPB to enhance transient performance and lifespan in automotive systems.
What are the common failure modes of the LM2575HVT-5.0/NOPB in continuous 1A operation, and how can PCB design reduce failure risk?
In continuous 1A operation, common failure modes of the LM2575HVT-5.0/NOPB include thermal shutdown due to inadequate PCB copper for heat dissipation and switch node oscillation from poor layout. The non-synchronous design generates heat in both the IC and catch diode, so failure often starts at the solder joints or internal bond wires. To reduce risk, use at least two thermal vias under the GND tab of the TO-220-5 package, connect to a solid ground plane, and limit high-current trace length. Also, ensure the catch diode (e.g., 1N5822) is thermally isolated from the LM2575HVT-5.0/NOPB to prevent localized heating. Keep CIN close to the VIN and GND pins—use a low-ESR 100μF electrolytic plus 0.1μF ceramic—to reduce voltage spikes that stress the internal switch of the LM2575HVT-5.0/NOPB.
Is the LM2575HVT-5.0/NOPB suitable for wide-input-distribution systems (e.g., 8-55V), and what protection circuitry should be added?
Yes, the LM2575HVT-5.0/NOPB is ideal for wide-input applications like 8–55V power distribution systems due to its 60V maximum input rating and robust TO-220 package. However, transient protection is critical: add a TVS diode (e.g., P6KE68CA) on the input rail to clamp load-dump surges up to 60V, as prolonged overvoltage can damage the LM2575HVT-5.0/NOPB. Include a fuse or polyfuse on VIN for short-circuit protection since the internal current limit may not prevent catastrophic failure under sustained fault. Also, use X7R or X5R input capacitors rated for 1.25x the max input voltage to prevent capacitance loss and ensure stable operation. Properly sized external components and robust PCB layout are essential to leverage the full input range safely with the LM2575HVT-5.0/NOPB.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LM2575HVT-5.0/NOPB CAD Models
Texas Instruments LM2575HVT-5.0/NOPB PCB symbols & footprints
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