Features

• Complete Step-Down Switch Mode Power Supply
• Wide Input Voltage Range: 3.6V to 36V
• 1A Output Current
• 0.8V to 10V Output Voltage
• Switching Frequency from 200kHz to 2.4MHz
• EN55022 Class B Compliant with Margin
• Current Mode Control
• (e4) RoHS Compliant Package with Gold Pad Finish
• Programmable Soft-Start
• Pin Compatible with the LTM8032
• Low Profile (9mm × 15mm × 2.82mm) Surface Mount LGA Package

Typical Application

Description

The LTM®8031 is an electromagnetic compatible (EMC) 36V, 1A DC/DC μModule® (power module) buck converter designed to meet the radiated emissions requirements of EN55022. Conducted emission requirements can be met by adding standard filter components. Included in the package are the switching controller, power switches, inductor, filters and all support components. Operating over an input voltage range of 3.6V to 36V, the LTM8031 supports an output voltage range of 0.8V to 10V, and a switching frequency range of 200kHz to 2.4MHz, each set by a single resistor. Only the bulk input and output filter capacitors are needed to finish the design. The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation.

The LTM8031 is packaged in a thermally enhanced, compact (9mm ×15mm) and low profile (2.82mm) overmolded land grid array (LGA) package suitable for automated assembly by standard surface mount equipment. The LTM8031 is RoHS compliant.