(Hong Kong)
Product Summary
The LM2596S is a 3A Step-Down Voltage Regulator. It provides all the active functions for a step-down(buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. The LM2596S is available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. The applications of the LM2596S are Simple high-efficiency step-down (buck) regulator, On-card switching regulators, Positive to negative converter.
Parametrics
LM2596S absolute maximum ratings: (1)Maximum Supply Voltage:45V; (2)ON /OFF Pin Input Voltage:-0.3 ≤ V ≤ +25V; (3)Feedback Pin Voltage:-0.3 ≤ V ≤+25V; (4)Output Voltage to Ground(Steady State):-1V; (5)Power Dissipation:Internally limited; (6)Storage Temperature Range:-65℃ to +150℃; (7)ESD Susceptibility: Human Body Model:2 kV; (8)Maximum Junction Temperature:+150℃.
Features
LM2596S features: (1)3.3V, 5V, 12V, and adjustable output versions; (2)Adjustable version output voltage range, 1.2V to 37V ±4% max over line and load conditions; (3)Available in TO-220 and TO-263 packages; (4)Guaranteed 3A output load current; (5)Input voltage range up to 40V; (6)Requires only 4 external components; (7)Excellent line and load regulation specifications; (8)150 kHz fixed frequency internal oscillator; (9)TTL shutdown capability; (10)Low power standby mode, IQ typically 80 μA; (11)High efficiency; (12)Uses readily available standard inductors; (13)Thermal shutdown and current limit protection.
Diagrams
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 LM2596S-12 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2596S-3.3 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2596S-5.0 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2596S-ADJ |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2596SX-12 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2596SX-12/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2596SX-3.3 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2596SX-3.3/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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