LT8580

RECOMMENDED FOR NEW DESIGNS

Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchronization

Analog Devices LT8580 Product Info

10 February 2026 5

Features

1A, 65V Power Switch
Adjustable Switching Frequency
Single Feedback Resistor Sets V_OUT
Synchronizable to External Clock
High Gain SHDN Pin Accepts Slowly Varying Input Signals
Wide Input Voltage Range: 2.55V to 40V
Low V_CESAT Switch: 400mV at 0.75A (Typical)

Integrated Soft-Start Function
Easily Configurable as a Boost, SEPIC, or Inverting Converter
User Configurable Undervoltage Lockout (UVLO)
Pin Compatible with LT3580
Tiny Thermally Enhanced 8-Lead 3mm × 3mm DFN and 8-Lead MSOP Packages
AEC-Q100 Qualified for Automotive Applications

Part details & applications

The LT8580 is a PWM DC/DC converter containing an internal 1A, 65V switch. The LT8580 can be configured as either a boost, SEPIC or inverting converter.

The LT8580 has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT8580 can be synchronized to an external clock. The switching frequency of the part may be free running or synchronized, and can be set between 200kHz and 1.5MHz.

The LT8580 also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.

Additional features such as frequency foldback and soft-start are integrated. The LT8580 is available in tiny thermally enhanced 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.

APPLICATIONS

VFD Bias Supplies
TFT-LCD Bias Supplies
GPS Receivers
DSL Modems
Local Power Supply

Subscribe to Welllinkchips !

Your Name

* Email