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Technical Specifications
Parameters and characteristics for this part
| Specification | LM2575WU |
|---|---|
| Current - Output | 1 A |
| Frequency - Switching | 52 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | TO-263-6, TO-263BA, D2PAK (5 Leads + Tab) |
| Supplier Device Package | TO-263-5 |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Min) [Min] | 4 V |
| Voltage - Output (Max) | 37 V |
| Voltage - Output (Min/Fixed) | 1.23 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 1.75 | |
| 25 | $ 1.46 | |||
| 100 | $ 1.33 | |||
| Microchip Direct | TUBE | 1 | $ 1.75 | |
| 25 | $ 1.46 | |||
| 100 | $ 1.33 | |||
| 1000 | $ 1.28 | |||
| 5000 | $ 1.27 | |||
| 10000 | $ 1.26 | |||
Description
General part information
LM2575 Series
The LM2575 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, 12V, or 15V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 1A load with excellent line and load regulation.
These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator.
The LM2575 series offers a high efficiency replacement for popular three-terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.
Documents
Technical documentation and resources
