Product Summary
The LM2575T-5.0 is a regulator. It provides all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. The LM2575T-5.0 is available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. Requiring a minimum number of external components, it is simple to use and include internal frequency compensation and a fixed-frequency oscillator. Applications of the LM2575T-5.0 include: Simple high-efficiency step-down (buck) regulator, Efficient pre-regulator for linear regulators, On-card switching regulators, Positive to negative converter (Buck-Boost).
Parametrics
LM2575T-5.0 absolute maximum ratings: (1)Output Voltage to Ground (Steady State): -1V; (2)Power Dissipation: Internally Limited; (3)Storage Temperature Range: -65℃ to +150℃; (4)Maximum Junction Temperature: 150℃; (5)Minimum ESD Rating (C = 100 pF, R = 1.5 kΩ): 2 kV; (6)Lead Temperature (Soldering, 10 sec.): 260℃.
Features
LM2575T-5.0 features: (1)3.3V, 5V, 12V, 15V, and adjustable output versions; (2)Adjustable version output voltage range, 1.23V to 37V (57V for HV version) ±4% max over line and load conditions; (3)Guaranteed 1A output current; (4)Wide input voltage range, 40V up to 60V for HV version; (5)Requires only 4 external components; (6)52 kHz fixed frequency internal oscillator; (7)TTL shutdown capability, low power standby mode; (8)High efficiency; (9)Uses readily available standard inductors; (10)Thermal shutdown and current limit protection; (11)P+ Product Enhancement tested.
Diagrams
 
 
| Image | Part No | Mfg | Description |  | Pricing (USD) | Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|  |  LM2575T-5.0 |  National Semiconductor (TI) |  Switching Converters, Regulators & Controllers |  Data Sheet |  
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|  |  LM2575T-5.0/LB02 |  National Semiconductor (TI) |  Switching Converters, Regulators & Controllers |  Data Sheet |  
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|  |  LM2575T-5.0/LB03 |  National Semiconductor (TI) |  Switching Converters, Regulators & Controllers |  Data Sheet |  
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|  |  LM2575T-5.0/LF03 |  National Semiconductor (TI) |  Switching Converters, Regulators & Controllers |  Data Sheet |  
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|  |  LM2575T-5.0/LF02 |  National Semiconductor (TI) |  Switching Converters, Regulators & Controllers |  Data Sheet |  
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|  |  LM2575T-5.0/LF04 |  National Semiconductor (TI) |  Switching Converters, Regulators & Controllers |  Data Sheet |  
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|  |  LM2575T-5.0/NOPB |  National Semiconductor (TI) |  Switching Converters, Regulators & Controllers 1A STEP-DOWN VLTG REG |  Data Sheet |  
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|  |  LM2575T-5.0G |  Other |  |  Data Sheet |  Negotiable |  | ||||||||||||
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