L5985 Series

2 A step-down switching regulator

Catalog

2 A step-down switching regulator

Part	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	Supplier Device Package	Number of Outputs	Function	Voltage - Input (Min) [Min]	Output Type	Mounting Type	Voltage - Output (Min/Fixed)	Synchronous Rectifier	Output Configuration	Topology	Package / Case	Voltage - Output (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Current - Output
STMicroelectronics L5985TR	150 °C	-40 °C	18 V	8-VFQFPN (3x3)	1	Step-Down	2.9 V	Adjustable	Surface Mount	0.6 V		Positive	Buck	8-VFDFN Exposed Pad	18 V	1 MHz	250 kHz	2 A

Catalog

2 A step-down switching regulator

Description

The L5985 is a step-down switching regulator with a 2.5 A (min.) current limited embedded Power MOSFET, so it is able to deliver up to 2 A DC current to the load depending on the application condition. 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 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 VFQFPN8 package with an exposed pad allows reducing the RthJAdown to approximately60 °C/W.