LTC3634IFE#TRPBF

Special Purpose Regulators Overview

The LTC3634IFE#TRPBF is a dual-channel monolithic synchronous step-down DC/DC converter designed for DDR power applications. It operates with an input voltage range of 1.4V to 15V and provides two adjustable output voltages from 0.6V to 3V. Each channel supports up to 3A of output current. The device integrates a 4MHz switching frequency, enabling the use of small external inductors and capacitors. It features a low quiescent current of 15µA and includes programmable soft-start, tracking, and power-good indicators within a 28-lead TSSOP package with an exposed thermal pad.

Special Purpose Regulators Feature Summary

• Dual-channel integrated synchronous buck topology for compact board space
• Wide input voltage range accommodating various system power rails
• Low quiescent current operation for improved efficiency at light loads
• Integrated control loop with soft-start and tracking capabilities

Special Purpose Regulators Applications

• DDR memory power supplies
• Portable electronic devices requiring efficient voltage regulation
• Industrial equipment with multiple voltage domains
• Communication infrastructure power management

Special Purpose Regulators Procurement Notes

Verify the suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the specific temperature grade and lead finish requirements match the project specifications. Ensure the supplier provides valid traceability documentation. Check for RoHS compliance status as per the manufacturer's latest declaration. Validate that the component lot date code meets the assembly timeline constraints.

Special Purpose Regulators Selection Notes

Select this component when a dual-output solution is required for DDR or similar low-voltage logic applications. The wide input range allows flexibility in system design without additional pre-regulation stages. Consider the thermal performance of the TSSOP-EP package for high-current scenarios. Evaluate the 4MHz switching frequency against EMI constraints and passive component size requirements.

Special Purpose Regulators Part Context

This part belongs to the LTC3634 family of dual synchronous step-down converters. It shares functional similarities with the LTC3633 series but offers specific input voltage characteristics suited for broader supply ranges. The device is manufactured by Analog Devices Inc. under the Linear Technology brand heritage. It serves as a key PMIC component for multi-rail systems.

Special Purpose Regulators Replacement Considerations

Direct substitutes include the LTC3634IUFD#PBF for QFN packaging variants. The LTC3633IFE#TRPBF may be considered if the input voltage range aligns with 3.6V to 20V requirements. Verify pinout compatibility and thermal dissipation differences before substitution.