The LT8301 operates over a 2.7V to 42V input voltage range, has a 1.2A/65V power switch and delivers up to 6 watts of output power, making it well suited for a wide variety of industrial, medical, datacom, military and automotive applications.

The LT8301 operates in boundary mode, which is a variable frequency current-mode control switching scheme, typically resulting in ±5% regulation over the full line, load and temperature range. The output voltage is easily set by a single resistor and the transformer turns ratio. Several off-the-shelf transformers, identified in the data sheet, can be used for numerous applications.

The high level of integration, boundary mode and the use of low ripple BurstMode® operation result in a simple to use, low component count highly efficient solution. Additional features included overload protection, a 380µA no load quiescent current with the output voltage in regulation, internal soft start, internal loop compensation, and output diode temperature compensation.

The LT8301 is available in a small TSOT-23 package. Extended and industrial versions operate over a junction temperature range of –40°C to 125°C. A high temperature automotive grade operates from –40°C to 150°C and a military grade operates from –55°C to 150°C. Pricing starts at $2.76 each in 1000-piece quantities.

Features:

－ VIN Range from 2.7V to 42V

－ Onboard 1.2A, 65V Integrated Power Switch

－ No Opto-Coupler, Transformer or Third Winding Required for Feedback

－ 380µA Quiescent Current

－ Boundary-Mode Operation

－ VOUT Set with One External Resistor

－ Off-the-Shelf Transformers

－ Output Voltage Temperature Compensation

－ TSOT-23 Package

－ Extended & Industrial Grades: –40°C to 125°C Operating Junction Temp

－ Automotive Temp Grade: –40°C to 150°C Operating Junction Temp

－ Military Temp Grade: –55°C to 150°C Operating Junction Temp