A monolithic 1A step-down (buck) voltage regulator that is a high efficiency replacements for the more conventional 3-pin linear regulators. These devices require a minimum number of external components and are simple to use. Their design substantially reduces the size of heatsink required and, in many cases, no thermal management is required as dissipated power is low. Applications for these devices include: simple high efficiency buck regulator, pre-regulation for linear regulators & on-card switching regulators.
- Supplied in a 5-pin TO-220-5 package
- Available only in 5V output version
- Guaranteed 1A output
- Output voltage tolerance ±4%
- External shutdown facility
- Low power standby mode
- Thermal shutdown and current limit protection
- Requires minimal external components
LM2575T-5.0 | |
Supply voltage max. | 45V |
Output voltage typ. | +5V |
Efficiency typ. | 77% |
Oscillator frequency typ. | 52kHz |
Duty cycle (ON) max. | 98% |
Current limit typ. | 2.2A |
Output leakage current typ. | 7.5mA |
Quiescent current typ. | 5mA |
Operating temperature range | –40°C to +125°C |
Storage temperature range | –65°C to +150°C |
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