Features

• Complete Step-Down Switch Mode Power Supply
• Low Noise Silent Switcher^® Architecture
• Wide Input Voltage Range: 3.4V to 40V
• Wide Output Voltage Range: 0.97V to 18V
• Wide Temperature Range: –40°C to 150°C (H-Grade)
• 3.5A Continuous Output Current, 6A peak
• FMEA Compliant Pinout (LTM8003-3.3) Output Stays at or Below Regulation Voltage During Adjacent Pin Short or if a Pin Is Left Floating
• Selectable Switching Frequency: 200kHz to 3MHz
• External Synchronization
• Low Quiescent Current: 25μA (5V_OUT)
• Tiny, Low Profile 6.25mm × 9mm × 3.32mm RoHS Compliant BGA Package

Typical Application

Description

The LTM®8003 is a 40V_IN, 3.5A (continuous) step-down Silent Switcher μModule® (power module) regulator. Included in the package are the switching controller, power switches, inductor, and all support components. Operating over an input voltage range of 3.4V to 40V, the LTM8003 supports an output voltage range of 0.97V to 18V and a switching frequency range of 200kHz to 3MHz, each set by a single resistor. Only the input and output filter capacitors are needed to finish the design.

The low profile package enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The LTM8003 is packaged in a thermally enhanced, compact over-molded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8003 is RoHS compliant.