(China (Mainland))
Product Summary
The LM2575S-15/NOPB is a High Efficiency 1A Step-Down Voltage 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 LM2575S-15/NOPB is available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. The applications of the LM2575S-15/NOPB are Simple high-efficiency step-down (buck) regulator, Efficient pre-regulator for linear regulators, On-card switching regulators, Positive to negative converter (Buck-Boost).
Parametrics
LM2575S-15/NOPB absolute maximum ratings: (1)Maximum Supply Voltage:45V; (2)ON /OFF Pin Input Voltage:-0.3V ≤ V ≤ +VIN; (3)Output Voltage to Ground (Steady State):-1V; (4)Power Dissipation:Internally Limited; (5)Storage Temperature Range:-65℃ to +150℃; (6)Maximum Junction Temperature:150℃; (7)Minimum ESD Rating(C = 100 pF, R = 1.5 kΩ):2 kV; (8)Lead Temperature(Soldering, 10 sec.):260℃.
Features
LM2575S-15/NOPB 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
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 LM2575S-15/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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