LTC3850IGN-1#TRPBF

DC DC Switching Controllers Overview

The LTC3850IGN-1#TRPBF is a dual synchronous step-down switching controller in a 28-pin narrow SSOP package. It drives all N-channel power MOSFET stages with a phase-lockable frequency up to 780kHz. The device operates from a 4V to 24V input range (30V for the I-grade). It features OPTI-LOOP compensation, a precision 0.8V reference, and independent soft-start/tracking pins. Key electrical parameters include a maximum switching frequency of 780kHz, an operating supply voltage of 4V to 30V, and two output channels.

DC DC Switching Controllers Feature Summary

• Dual 180-degree phased controllers reduce required input capacitance and power supply induced noise
• OPTI-LOOP compensation optimizes transient response over a wide range of output capacitance and ESR values
• Independent TK/SS pins allow each controller to ramp output voltages during start-up
• Current foldback limits MOSFET heat dissipation during short-circuit conditions

DC DC Switching Controllers Applications

• Intermediate bus voltage conversion
• Battery-powered systems requiring wide input ranges
• Pre-biased output applications
• High efficiency DC-to-DC conversion stages

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. or its predecessor Linear Technology. Ensure the component matches the 28-pin narrow SSOP physical footprint. Check for RoHS compliance status as per current manufacturing standards. Validate the part number against official distributor catalogs to avoid counterfeit components.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring dual-phase buck regulation with high efficiency. The wide input voltage range supports various battery chemistries. Use when precise output voltage accuracy is critical due to the 0.8V reference. Consider the phase-lockable frequency for synchronization needs. Ensure the application benefits from reduced input capacitance requirements provided by the dual-phase architecture.

DC DC Switching Controllers Part Context

This component belongs to the LTC3850 family of dual synchronous step-down switching controllers. It is designed to drive external N-channel MOSFETs for high-performance power management. The series includes variants with different packages and temperature grades. The technology emphasizes low power loss and minimized supply noise through out-of-phase operation.

DC DC Switching Controllers Replacement Considerations

LTC3850IGN-1#PBF is the tube-packaged equivalent of this part. Both share identical electrical specifications and pinouts. Verify that the packaging format change does not impact automated assembly processes. No functional differences exist between the reel and tube versions.