| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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399 pcs
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399 pcs | On Request | 1 | On Request | On Request | N/A | On Request | On Request |
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| Halogen Free | |
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| Tape & Reel |
The LM3940IMP-3.3/NOPB from Texas Instruments is a 1-A low-dropout (LDO) linear voltage regulator designed for efficient power conversion. It is specifically suited for systems requiring both 5V and 3.3V logic, drawing prime power from a 5V bus. This regulator can maintain its 3.3V output even with input voltages as low as 4.5V, making it a true low-dropout device.
Key electrical specifications include an input voltage range of 4.5V to 5.5V and a fixed output voltage of 3.3V, capable of delivering up to 1A of current. The device features excellent load regulation and requires only a single external component for operation. Built-in protection against excess temperature and short circuits enhances reliability.
Packaged in a SOT-223 (DCY) surface-mount case, the LM3940 is designed for efficient power dissipation when soldered to a copper plane on a PCB. It operates reliably within a temperature range of -40°C to 125°C. This component is ideal for applications needing a dependable 3.3V supply from a 5V source, such as in mixed-voltage systems.
The output voltage is fixed at 3.3V.
The maximum output current is 1A.
The input voltage range is 4.5V to 5.5V.
The operating temperature range is -40°C to 125°C.
It is available in a SOT-223 surface-mount package.