LTC3104EDE#TRPBF

Overview

The LTC3104EDE#TRPBF is a high-efficiency, monolithic synchronous step-down converter manufactured by Analog Devices Inc. It utilizes a current mode architecture to deliver up to 300mA of output current. The device integrates an adjustable 10mA Low Dropout (LDO) regulator designed for powering noise-sensitive functional circuits. Key electrical specifications include a maximum input voltage of 15V and a switching frequency of 1.2MHz. The quiescent current is specified at 2.6uA. The component is housed in a 14-lead DFN package measuring 4mm x 3mm.

Feature Summary

• Integrates a synchronous buck converter with a dedicated low-noise LDO for sensitive loads
• Operates with extremely low quiescent current to maximize battery life
• Utilizes a compact surface-mount package suitable for space-constrained designs

Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems needing extended operational time
• Circuits requiring isolated clean power rails for sensitive analog components

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when placing orders. Confirm that the 14-DFN (4x3) package dimensions match your PCB footprint requirements. Ensure compatibility with the 1.2MHz switching frequency regarding electromagnetic interference constraints in your design. Check for any regional distribution restrictions or limited availability status before finalizing procurement plans.

Selection Notes

Select this component when a combined solution for main power conversion and low-noise auxiliary power is required. The integrated LDO simplifies board layout by reducing external component count compared to discrete solutions. Consider the 300mA limit for the main converter and 10mA limit for the LDO against total system load requirements. The low quiescent current makes it suitable for applications where standby power consumption is critical.

Part Context

This part belongs to the LTC3104 series from Analog Devices, focusing on high-efficiency power management for portable electronics. It combines a synchronous buck converter with an LDO in a single monolithic structure. The series is designed to address the needs of battery-operated devices where efficiency and size are paramount. It serves as a complete power solution for systems requiring multiple regulated voltage rails.

FAQ

What is the purpose of the integrated LDO in the LTC3104?

The integrated LDO provides a clean, low-noise power supply specifically intended for noise-sensitive functional circuits within the system.

What is the maximum input voltage for this device?

The maximum input voltage supported by the LTC3104EDE#TRPBF is 15V.