Product Summary
The LM2576T-5.0 is a 3Amp step-down voltage regulator. It is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation. The device features a 5V out-put capable of driving a 3A load with excellent line and load regulation. The applications of the LM2576T-5.0 include: (1)Simple high-efficiency step-down (buck) regulator; (2)Efficient pre-regulator for linear regulators; (3)On-card switching regulators; (4)Positive to Negative converter (Inverting, Buck-Boost); (5)Isolated Flyback Converter using minimum number of external components; (6)Negative Boost Converter.
Parametrics
LM2576T-5.0 absolute maximum ratings: (1)Maximum Supply Voltage: 45V; (2)ON/OFF Pin Input Voltage: -0.3V ≤ V ≤ +40V; (3)Output Voltage to Ground (Steady State): -1V; (4)Storage Temperature Range: -65℃ to + 150℃; (5)Minimum ESD Rating (C = 100 pF, R = 1.5 kΩ): 2KV; (6)Lead Temperature (Soldering, 10 Seconds): 260℃; (7)Maximum Junction Temperature: 150℃.
Features
LM2576T-5.0 features: (1)5V output, ±3% max over line and load conditions; (2)Guaranteed 3A output current; (3)Wide input voltage range, 7V to 40V; (4)Requires only 4 external components; (5)52 kHz fixed frequency internal oscillator; (6)Low power standby mode, IQ typically <200 jxA; (7)80% Efficiency; (8)Uses readily available standard inductors; (9)Thermal shutdown and current limit protection; (10)100% electrical thermal limit bum-in.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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LM2576T-5.0 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2576T-5.0/LB03 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2576T-5.0/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers 3A STEP-DOWN VLTG REG |
Data Sheet |
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LM2576T-5.0/LF03 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2576T-5.0/LF02 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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