LTC3850EGN-1#TRPBF

DC DC Switching Controllers Overview

The LTC3850EGN-1#TRPBF is a dual-channel, two-phase synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4V to 24V and supports output voltages from 800mV to 6V. The device features a constant-frequency current mode architecture with a programmable switching frequency up to 780kHz. It provides independent control for two outputs, each capable of driving external N-channel MOSFETs. The component is housed in a 28-lead narrow SSOP package and is designed for high efficiency and low noise applications.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture enables simultaneous regulation of two independent output rails with reduced input capacitance requirements.
• OPTI-LOOP compensation optimizes transient response across a wide range of output capacitance and ESR values.
• Integrated DCR or RSENSE current sensing capabilities allow for precise load monitoring without external shunt resistors.

DC DC Switching Controllers Applications

• Portable digital devices requiring efficient multi-rail power distribution
• DC power distribution systems in industrial equipment
• Battery-powered instruments and handheld computers

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the EGNA variant corresponds to the commercial temperature grade and SSOP-28 package. Ensure compatibility with external MOSFET gate drive requirements before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring two isolated or related output voltages from a single intermediate bus. Consider the fixed frequency operation and phase-shifted outputs for minimizing input ripple. Evaluate the need for Burst Mode operation versus continuous conduction based on light-load efficiency requirements.

DC DC Switching Controllers Part Context

This component belongs to the LTC3850 family of dual synchronous buck controllers. It shares architectural similarities with other members like the LTC3851 but differs in channel count and specific pinout configurations. The EGNA designation specifies the commercial temperature range and plastic SSOP packaging format.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3850EGN#PBF for tube packaging or the LTC3850EUF variants for QFN packages. Cross-reference pinouts carefully as functional equivalents may differ in thermal pad configurations or specific control signal assignments.