LT1683EG#TRPBF

Overview

The LT1683EG#TRPBF is an ultralow noise push-pull DC/DC controller designed to minimize conducted and radiated electromagnetic interference. It operates with a supply voltage range of 7.3V to 20V and supports switching frequencies from 20 kHz to 250 kHz. The device features a maximum duty cycle of 46% and includes control functions for enable, frequency adjustment, and soft start. It is housed in a surface-mount SSOP-20 package and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Ultralow noise operation for reduced electromagnetic interference
• Push-pull topology suitable for isolated power supplies
• Integrated soft start and frequency control capabilities

Applications

• Isolated DC/DC converter designs
• Power supplies requiring low EMI
• Telecommunications equipment
• Industrial control systems

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm that the SSOP-20 package matches your PCB footprint requirements. Ensure the operating voltage range aligns with your system's power rail specifications before finalizing procurement.

Selection Notes

Select this component for applications demanding minimal noise and EMI in push-pull topologies. Consider the 46% maximum duty cycle limitation when designing transformer ratios. Verify compatibility with external MOSFET drivers and ensure thermal management meets the specified operating temperature range.

Part Context

This part belongs to the LT1683 series of switching regulator controllers. It is manufactured by Analog Devices Inc., formerly Linear Technology. The EG#TRPBF designation specifies the industrial temperature grade and tape and reel packaging format for automated assembly processes.

Replacement Considerations

LT1683EG#PBF is a verified substitute offering identical electrical characteristics but in tube packaging instead of tape and reel.