LTC3309AMPV#TRMPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3309AMPV#TRMPBF is a dual-output synchronous step-down DC/DC converter from Analog Devices Inc., belonging to the Silent Switcher®1 series. It operates with an input voltage range of 2.25V to 5.5V and provides two adjustable output channels, each capable of delivering up to 6A. The device features a fixed switching frequency of 6MHz and utilizes a 12-LQFN (2x2mm) package with exposed pad for surface mount installation. It supports an operating junction temperature range from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates dual independent buck converters within a compact footprint
• Employs patented core architecture to minimize electromagnetic interference radiation
• Features synchronous rectification for enhanced conversion efficiency
• Supports wide input voltage ranges suitable for single-cell lithium battery applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring multiple low-voltage rails
• Battery-powered systems utilizing single-cell lithium-ion power sources
• Industrial equipment with space-constrained power management requirements
• Automotive infotainment and sensor modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AMPV' against official Analog Devices documentation to confirm automotive qualification status and temperature grade. Ensure compatibility with the 12-LQFN footprint during PCB layout. Confirm RoHS3 compliance and moisture sensitivity level requirements prior to assembly planning.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated or non-isolated outputs are required from a single high-current source. The 6MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider thermal dissipation capabilities due to the high current density in the small package. Verify that the load transient requirements align with the control loop stability specifications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3309 family of Silent Switcher regulators. It shares architectural similarities with the LTC3307 and LTC3308 but offers higher current capacity and dual-channel functionality. The 'A' prefix typically denotes automotive-grade reliability standards, while 'IV' indicates the industrial temperature range variant in some nomenclatures, though specific suffix definitions must be validated via the datasheet.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-to-pin replacements may include other members of the Silent Switcher 1 family such as the LTC3307 or LTC3308 if single output suffices. Cross-reference with LTC3309AEV or LTC3309BIV variants for different temperature grades. Verify equivalent current ratings and switching frequencies before substitution.