ST L5973ADTR

降压降压4V36V2A

Overview

The L5973ADTR is a step down monolithic power switching regulator with a switch current limit of 2A so it is able to deliver more than 1.5 A DC current to the load depending on the application conditions.

The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the RthJA down to approximately 40 °C/W. The device uses an internal P-Channel D-MOS transistor (with a typical of 200 m) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency. An internal oscillator fixes the switching frequency at 500 kHz to minimize the size of external components. Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus, available in all computer related applications. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.

Features

Tape & Reel (TR) Package
1 outputs
Peak reflow temperature (Cel) of 260
8 pins

Surface Mount Mounting Type

Applications

There are a lot of STMicroelectronics
L5973ADTR Voltage Regulators applications.

• Ball screw pair
• Computer application technology
• Network technology
• Automation technology
• CMM
• Various precision measuring instruments
• Various precision measuring detectors
• Flaw detection equipment
• Balance equipment
• Industrial robots