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26,343 pcs
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26343 pcs | On Request | 1 | On Request | On Request | 2020+ | On Request | On Request |
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The LM2575YN from Microchip Technology is a monolithic integrated circuit that functions as a step-down (buck) switching regulator. It is designed to provide a 1A load current with excellent line and load regulation. This series offers a high efficiency replacement for linear regulators, often eliminating the need for a heat sink.
Key electrical specifications include a wide input voltage range of 4V to 40V and an adjustable output voltage range from 1.23V to 37V. The device operates at a fixed frequency of 52kHz, simplifying power supply design with a minimal number of external components. It includes internal frequency compensation and a fixed-frequency oscillator.
For fixed output versions, the output voltage is guaranteed to ±3% tolerance, while adjustable versions have a ±2% feedback voltage tolerance under specified conditions. The LM2575YN also features external shutdown capability with low standby current and includes cycle-by-cycle current limiting and thermal shutdown for protection.
This regulator is available in a 16-DIP through-hole package, making it suitable for various circuit designs. Its applications include simple high-efficiency step-down regulators and efficient pre-regulators for linear regulators.
| Qty | Low | High |
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| 1+ | $0.16 | $0.16 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The adjustable version provides an output voltage from 1.23V to 37V. Fixed versions are available for 3.3V, 5V, and 12V.
The input voltage range is 4V to 40V.
The LM2575YN can deliver up to 1A output current.
The internal oscillator sets the switching frequency to 52kHz.
The operating junction temperature range is -40°C to 125°C.
The LM2575YN is offered in a 16-DIP (0.300", 7.62mm) through-hole package.
Typical efficiency for the adjustable version is greater than 80%.