| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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950 pcs
|
950 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
313 pcs
|
313 pcs | On Request | 1 | On Request | On Request | 00+ | On Request | On Request |
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The ST L4949E is a versatile monolithic integrated 5V voltage regulator designed for demanding applications, especially within the automotive sector. It offers a very low dropout voltage, ensuring efficient power delivery even under challenging conditions.
Key electrical specifications include an operating DC supply voltage range of 5V to 28V, with transient supply voltage tolerance up to 40V. The regulator provides a stable 5V output with high precision (±1%) and can deliver an output current capability of up to 100mA. Its extremely low quiescent current in standby mode contributes to power efficiency.
Additional integrated functions enhance its utility. A reset circuit senses the output voltage, providing a power-on reset signal. A voltage sense comparator and programmable reset pulse delay with an external capacitor offer further control. The device also incorporates thermal shutdown and short-circuit protections for robust operation.
The L4949E is available in multiple package options: Minidip, SO8, and SO20W, catering to different assembly requirements. Its design makes it suitable for supplying micro-computer controlled systems where reliable voltage regulation and integrated monitoring functions are critical.