LT1424CS8-9#TRPBF

Overview

The LT1424CS8-9#TRPBF is an isolated flyback switching regulator manufactured by Analog Devices Inc. It operates within a supply voltage range of 3 V to 20 V and delivers a fixed 9 V output at up to 200 mA. The device features a switching frequency of 285 kHz and a typical quiescent current of 7 mA. It is housed in an SOIC-8 surface-mount package and supports operation from 0°C to +125°C.

Feature Summary

• Provides galvanic isolation via integrated flyback transformer drive capability
• Includes shutdown control for power management optimization
• Supports wide input voltage ranges suitable for various bus architectures

Applications

• Isolated DC-DC conversion in industrial instrumentation
• Power supply stages for sensor interfaces requiring isolation
• Telecommunications equipment with isolated logic levels

Procurement Notes

Verify the specific suffix #TRPBF confirms tape-and-reel packaging when sourcing. Confirm the -9 variant designation matches the required 9 V output specification. Ensure the CS8 package code aligns with the intended surface-mount footprint requirements for the design.

Selection Notes

Select this component when an isolated 9 V rail is required from a 3 V to 20 V source. Consider the 285 kHz switching frequency for filter component sizing. Evaluate thermal performance within the SOIC-8 package constraints for the target application environment.

Part Context

This part belongs to the LT1424 family of isolated switching regulators. Variants such as LT1424CS8-5#TRPBF provide different fixed output voltages while sharing the same topology and package. The series is designed for applications needing compact isolated power solutions.

Replacement Considerations

LT1424CS8-5#TRPBF offers identical functionality with a 5 V output instead of 9 V.