| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,150 pcs
|
1150 pcs | On Request | 1 | On Request | On Request | 03+ | On Request | On Request | |
|
42 pcs
|
42 pcs | On Request | 1 | On Request | On Request | 98 | On Request | On Request |
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The LM2576BU from Micrel Inc. is a monolithic integrated circuit designed as a step-down (buck) switching regulator. It provides a fixed 3.3V output voltage and is capable of driving a 3A load with excellent line and load regulation.
This regulator simplifies power supply design by requiring a minimal number of external components and featuring internal frequency compensation and a fixed-frequency oscillator operating at 52kHz. It offers a high-efficiency replacement for linear regulators, often eliminating the need for a heat sink. The device operates within a wide input voltage range of 4V to 40V.
Key features include cycle-by-cycle current limiting and thermal shutdown for protection under fault conditions. The LM2576BU is available in a TO-263-5 surface-mount package, making it suitable for various electronic designs.
Typical applications include simple high-efficiency step-down regulators, efficient pre-regulators for linear regulators, and on-card switching regulators.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.23 | $2.23 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The LM2576BU provides a fixed 3.3V output voltage.
The LM2576BU is guaranteed to deliver a 3A output current.
The LM2576BU operates with an input voltage range from 4V to 40V.
The LM2576BU features a fixed internal oscillator frequency of 52kHz.
The LM2576BU is available in a TO-263-5 package, designed for surface mounting.