LTC1704BEGN#TRPBF

Overview

The LTC1704BEGN#TRPBF is a dual synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 3V to 25V and provides two independent outputs adjustable from 0.8V to 6V. The device supports output currents up to 15A per channel at a fixed switching frequency of 300kHz. It features a wide operating temperature range from -40°C to +85°C and is housed in a 28-lead SSOP package.

Feature Summary

• Dual-channel architecture for independent power rail generation
• Integrated current mode control for fast transient response
• Synchronous rectification capability for high efficiency
• Built-in soft-start and tracking functions

Applications

• Point-of-load regulation for digital signal processors
• Power distribution networks in industrial equipment
• Voltage regulation for embedded communication systems

Procurement Notes

Verify the specific suffix 'B' indicates the commercial temperature grade (-40°C to +85°C) against the official datasheet. Confirm the 'EN' designation corresponds to the SSOP-28 package type. Ensure compatibility with external MOSFETs regarding gate drive requirements before finalizing procurement specifications.

Selection Notes

Select this component when dual isolated or tracked low-voltage rails are required from a higher bus voltage. The 300kHz frequency offers a balance between component size and efficiency. Verify that the external inductor and capacitor values support the desired load current without exceeding thermal limits within the specified ambient temperature range.

Part Context

This part belongs to the LTC1704 family of dual synchronous controllers. It is designed to replace older single-phase solutions where space savings and simplified layout are critical. The device integrates error amplifiers and PWM comparators, requiring only external power stages to complete the converter topology.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio that may offer updated packaging or extended temperature ranges. Verify functional equivalence if substituting with parts from other manufacturers, specifically focusing on pinout and control loop stability.