LT83203RUDB#TRMPBF

Overview

The LT83203RUDB#TRMPBF is a synchronous step-down DC/DC converter from Analog Devices, operating within an input voltage range of 2.8 V to 18 V. It delivers up to 3 A of output current through a single channel. The device integrates Silent Switcher 3 technology and operates at a fixed switching frequency of 6 MHz. It features a low quiescent current of 100 uA and a shutdown mode for power efficiency. The component is housed in a compact LFCSP-15 package and supports operation across a temperature range of -40°C to +150°C.

Feature Summary

• Integrates Silent Switcher 3 architecture for minimized electromagnetic interference emissions without external shielding requirements.
• Provides high-efficiency synchronous buck conversion with integrated power switches capable of delivering 3 A continuous load current.
• Features ultra-low quiescent current consumption to maintain efficiency under light-load conditions.
• Supports wide input voltage ranges suitable for various industrial and communication power bus standards.

Applications

• Industrial automation control systems
• Telecommunications infrastructure equipment
• Point-of-load regulation for digital signal processors

Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Check for any recent product change notices that may affect pinout or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing space-constrained systems requiring high-frequency operation to minimize passive component size. Ensure the thermal design accommodates the LFCSP-15 package limitations under maximum load conditions. Verify that the required output voltage falls within the adjustable range supported by the feedback network configuration.

Part Context

This part belongs to the LT83203 family of Silent Switcher regulators, designed for applications demanding low noise and high density. It complements other Analog Devices power management solutions by offering integrated EMI suppression capabilities. The series targets modern electronics where electromagnetic compatibility is critical alongside power efficiency.

Replacement Considerations

Consult official Analog Devices cross-reference guides for verified substitutes. Direct replacements must match the LFCSP-15 footprint and 3 A current capability. Verify that alternative components support the same 6 MHz switching frequency and input voltage range to maintain circuit stability.