LTC3407AIMSE#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3407AIMSE#PBF is a dual synchronous step-down DC/DC regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 2.5 V to 5.5 V and provides two adjustable output voltages from 600 mV to 5 V. Each channel delivers up to 800 mA of output current. The device integrates a fixed 2.25 MHz switching frequency, minimizing external component size while maintaining high efficiency. It features a low quiescent current of 40 uA and includes a shutdown mode for power conservation. The IC is housed in a 10-lead MSOP package with an exposed pad for thermal management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual synchronous buck topology for independent or combined output regulation
• Fixed 2.25 MHz switching frequency reduces passive component requirements
• Integrated low-side MOSFETs ensure high conversion efficiency across load ranges
• Shutdown pin enables significant reduction in supply current during idle states

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring multiple voltage rails
• Cellular phones and wireless communication modules
• Personal digital assistants (PDAs) and handheld devices
• Embedded systems with strict space constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and tape/reel versus tube packaging options available from authorized distributors. Confirm RoHS compliance status and lead-free manufacturing details against the latest manufacturer documentation. Ensure the operating temperature grade matches the application environment requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing compact systems requiring two isolated low-voltage outputs from a single 3.3 V or 5 V rail. The fixed high-frequency operation simplifies layout compared to adjustable frequency regulators. Consider the thermal performance of the MSOP package with exposed pad for adequate heat dissipation under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3407 family of dual synchronous step-down converters. It shares architectural similarities with other members like the LTC3407EDD-2#PBF but differs in package type and temperature rating. The series is designed for applications needing efficient power management in small form factors without sacrificing output current capability.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LTC3407EMSE-4#PBF offers similar electrical characteristics but may differ in package marking or specific thermal parameters. Verify pin compatibility and control interface signals before substitution. Cross-reference datasheets for exact overlap in input voltage ranges and output current capabilities.