(China (Mainland))
Product Summary
The LM2576S is a switching regulator. It is a monolithic integrated circuit designed for use in "buck" or "buck/boost" regulator applications requiring accurate output voltages over combined variations of line, load and temperature. This unique series greatly simplifies switching power supply design. The LM2576S has a maximum output current of 3A. The applications of the LM2576S include micro controller power supplies, medical equipment, industrial power supplies, and instrumentation power supplies.
Parametrics
LM2576S absolute maximum ratings: (1)Input voltage: 45V; (2)On/Off Pin input voltage: -0.3 ≤Von/off≤Vin V; (3)Output voltage to common (steady state): -1V; (4)Power dissipation: Internally Limited W; (5)Operating Junction Temperature range: -40 to 125℃; (6)Storage temperature range: -65 to 150℃; (7)Lead temperature (soldering) 10 sec. : 300℃; (8)ESD Rating (human body model): 2kV.
Features
LM2576S features: (1)Pin for pin replacement for National’s LM2575/6 series; (2)DC-to-DC buck or buck/boost converter requiring only 4 support components; (3)Fixed or adjustable voltages; (4)Preset output voltages of 3.3V, 5V and 12V; (5)Wide output voltage range, 1.23V to 35V; (6)82% typical efficiency @ 5V out; (7)Wide input voltage range, 4V to 40V; (8)Inhibit/enable control pin; (9)Industrial temperature range; (10)TO 220 and TO 263 packages.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
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 LM2576S-12 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2576S-12/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2576S-15/NOPB |
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IC REG BUCK 15V 3A TO263-5 |
Data Sheet |
Negotiable |
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LM2576S-3.3 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2576S-3.3/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers 3A STEP-DOWN VLTG REG |
Data Sheet |
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LM2576S-5.0 |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM2576S-5.0/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers 3A STEP-DOWN VLTG REG |
Data Sheet |
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LM2576S-ADJ |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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