LTC3618EUF#PBF

Special Purpose Regulators Overview

The LTC3618EUF#PBF is a dual synchronous buck converter designed for DDR termination applications. It operates with an input voltage range of 2.25 V to 5.5 V and provides three adjustable outputs ranging from 500 mV to 2.5 V. Each channel delivers up to 3 A of output current at a fixed 4 MHz switching frequency. The device features a low 1 uA shutdown supply current and functions within a temperature range of -40°C to +125°C. It is housed in a TSSOP-EP-24 package.

Special Purpose Regulators Feature Summary

• Dual synchronous buck topology optimized for high-density power delivery
• Fixed 4 MHz switching frequency enables the use of small external components
• Ultra-low shutdown current minimizes battery drain in portable systems
• Integrated thermal regulation protects against overheating during operation

Special Purpose Regulators Applications

• DDR memory termination power supplies
• Portable computing devices requiring efficient multi-rail power
• Battery-powered equipment with strict standby current limits
• Industrial control systems utilizing low-voltage logic levels

Special Purpose Regulators Procurement Notes

Verify the specific suffix and tape-and-reel or tube packaging options available through authorized distributors. Confirm RoHS compliance status and lead times directly with Analog Devices or certified partners. Ensure the ordering information matches the exact electrical specifications required for your design implementation.

Special Purpose Regulators Selection Notes

Select this component when designing systems that require multiple low-voltage rails from a single higher-voltage source. The fixed 4 MHz frequency is suitable for space-constrained layouts where small inductors are preferred. Consider the thermal performance and package type relative to the total power dissipation expected in the target application environment.

Special Purpose Regulators Part Context

This part belongs to the LTC3618 family of dual synchronous step-down converters manufactured by Analog Devices. It is specifically engineered to provide stable power for sensitive digital loads like DDR memory. The device integrates high-side and low-side MOSFETs to maximize efficiency across various load conditions.

Special Purpose Regulators Replacement Considerations

Consult official documentation for verified substitute part numbers. Cross-reference pinouts and electrical parameters carefully before substitution.