Voltage Regulators - Switching Regulators

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L7983 Synchronous Step-Down Switching Regulators

STMicroelectronics L7983 Synchronous Step-Down Switching Regulators deliver up to 300mA DC based on peak current mode architecture with output voltage adjustability ranging from 0.85V to V_IN. These monolithic regulators offer a wide input voltage range and adjustable undervoltage lockout (UVLO) threshold to meet specifications for 12V, 24V, and 48V industrial bus standards. A soft-start time is internally fixed, and an output voltage supervisor manages the reset phase for digital loads (microcontroller, FPGA, etc.). The internal compensation network features high noise immunity, a simple design, and saves on the component cost. STMicroelectronics L7983 Synchronous Step-Down Switching Regulators operate in a -40°C to +150°C temperature range.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Topology	Output Voltage	Output Current	Number of Outputs	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Switching Voltage Regulators Fixed 3.3V Output L7983PU33R STMicroelectronics 1: 1.61 CHF 8 489In Stock	Mfr. Part No. L7983PU33R Mouser Part No 511-L7983PU33R	STMicroelectronics	Switching Voltage Regulators Fixed 3.3V Output Learn More about STMicroelectronics l7983	Datasheet	8 489In Stock	Cut Tape 1.61 CHF 1.32 CHF 1.24 CHF 1.17 CHF Reel 1.04 CHF View 1.12 CHF 1.11 CHF 1.03 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	DFN-10	Buck	3.3 V	300 mA	1 Output	10 uA	500 kHz to 2.2 MHz	- 40 C	+ 150 C	L7983	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Fixed 5.0V Output L7983PU50R STMicroelectronics 1: 1.88 CHF 1 464In Stock 3 000Expected 29/10/2026	Mfr. Part No. L7983PU50R Mouser Part No 511-L7983PU50R	STMicroelectronics	Switching Voltage Regulators Fixed 5.0V Output Learn More about STMicroelectronics l7983	Datasheet	1 464In Stock 3 000Expected 29/10/2026	Cut Tape 1.88 CHF 1.42 CHF 1.31 CHF 1.19 CHF Reel 1.03 CHF View 1.12 CHF 1.10 CHF 1.08 CHF 1.00 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	DFN-10	Buck	5 V	300 mA	1 Output	10 uA	500 kHz to 2.2 MHz	- 40 C	+ 150 C	L7983	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Adjustable Output L7983PUR STMicroelectronics 1: 1.89 CHF 1 819In Stock	Mfr. Part No. L7983PUR Mouser Part No 511-L7983PUR	STMicroelectronics	Switching Voltage Regulators Adjustable Output Learn More about STMicroelectronics l7983	Datasheet	1 819In Stock	Cut Tape 1.89 CHF 1.38 CHF 1.28 CHF 1.17 CHF Reel 1.00 CHF View 1.12 CHF 1.11 CHF 1.06 CHF 0.992 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	DFN-10	Buck	850 mV to 60 V	300 mA	1 Output	10 uA	500 kHz to 2.2 MHz	- 40 C	+ 150 C	L7983	Reel, Cut Tape, MouseReel

L7983 Synchronous Step-Down Switching Regulators

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