LTC3615IFE-1#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3615IFE-1#TRPBF is a dual synchronous step-down DC/DC converter manufactured by Analog Devices Inc. It features two independent channels, each delivering up to 3A of output current. The device operates with an input voltage range of 2.25V to 5.5V and supports adjustable output voltages from 600mV to 5.5V. It utilizes a 4MHz switching frequency architecture with selectable phase shifts to minimize ripple. Quiescent current is 130µA in Burst Mode operation, dropping to zero in shutdown. The component is housed in a thermally enhanced 24-pin TSSOP package and is rated for industrial temperatures between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel synchronous buck topology with independent 3A outputs
• Programmable switching frequency up to 4MHz with selectable phase shift options
• Ultra-low quiescent current via Burst Mode operation at no-load
• Integrated soft-start and programmable slew rate limiting for EMI reduction

Voltage Regulators - DC DC Switching Regulators Applications

• Single lithium-ion battery powered systems
• DDR memory termination power supplies
• Soft-start circuit implementations
• General purpose low noise DC/DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the IFE variant corresponds to the thermally enhanced TSSOP-EP package rather than standard QFN versions. Ensure the -1 designation matches the required phase shift configuration for your application. Cross-reference the manufacturer part number directly with Analog Devices documentation to avoid confusion with similar family members.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated rails are required from a single input source within the 2.25V to 5.5V range. The 4MHz frequency allows for smaller passive components compared to lower frequency alternatives. Consider the thermal performance of the TSSOP-EP package for high-current applications. Verify that the 130µA quiescent current meets system standby requirements. Check if the specific phase shift options of the -1 variant align with input ripple cancellation needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3615 family of dual synchronous step-down regulators. It shares core architectural similarities with the LTC3615IFE and LTC3615EUF variants but differs in package type and phase shift capabilities. The -1 suffix typically denotes specific internal timing or phase shift characteristics distinct from the base model. It serves as a power management integrated circuit (PMIC) solution for portable and battery-operated electronics requiring efficient dual-rail generation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LTC3615IFE#PBF offers identical electrical specifications but in tube packaging instead of tape and reel. LTC3615EFE provides the same functionality in a leadless QFN package, requiring thermal pad consideration adjustments. Substitution requires verifying package footprint compatibility and ensuring the phase shift configuration matches the original design intent.