L5983 Series

1.5 A step-down switching regulator

Catalog

1.5 A step-down switching regulator

Part	Package / Case	Topology	Mounting Type	Function	Operating Temperature [Max]	Operating Temperature [Min]	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Number of Outputs	Voltage - Output (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Current - Output	Supplier Device Package	Output Configuration	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Output Type
STMicroelectronics L5983	8-VFDFN Exposed Pad	Buck	Surface Mount	Step-Down	150 °C	-40 °C		0.6 V	1	18 V	1 MHz	250 kHz	1.5 A	8-VFQFPN (3x3)	Positive	2.9 V	18 V	Adjustable

Catalog

1.5 A step-down switching regulator

Description

The L5983 is a step-down switching regulator with a 2.0 A (min.) current limited embedded Power MOSFET, so it is able to deliver an output current in excess of 1.5 A DC to the load. The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable also for a 3.3 V bus. Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz. The VFQFPN package with an exposed pad allows reducing the RthJAdown to approximately 60 °C/W.