LTC3554EUD#PBF

Product Overview

The LTC3554EUD#PBF is a specialized power management integrated circuit from Analog Devices Inc. intended for handheld and mobile device power paths. It operates from a 2.7 V to 5.5 V supply range and is a USB power manager in a compact 20-QFN (3 x 3) package. The surface-mount device uses a 20-WFQFN exposed-pad package and is specified for operation from -40°C to 85°C. The 10 µA supply current is specified for the device. The compact surface-mount package is relevant to portable-system layout constraints.

Key Features

• USB power manager IC for handheld and mobile devices
• 2.7 V to 5.5 V supply voltage range
• 10 µA supply current
• -40°C to 85°C operating temperature range
• 20-QFN (3 x 3) package with 20-WFQFN exposed pad
• Surface-mount package

Applications

• Handheld device USB power control
• Mobile device power-path control in compact designs
• Portable electronics operating from a 2.7 V to 5.5 V supply

Design & Procurement Notes

When selecting the LTC3554EUD#PBF, verify that the system supply remains within 2.7 V to 5.5 V and that the PCB footprint matches the 20-QFN (3 x 3) / 20-WFQFN exposed-pad surface-mount package. The -40°C to 85°C operating range should be checked against the intended handheld or mobile environment. The 10 µA supply current is relevant for portable power-budget review, while the exposed pad and compact package require attention to layout, thermal considerations, and soldering. The USB power manager function should be matched to the portable device power architecture.