LT1940EFE#TRPBF

Overview

The LT1940EFE#TRPBF is a dual-channel synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates within an input voltage range of 3.6 V to 25 V and delivers up to 1.4 A per channel. The device features an adjustable output voltage, a fixed switching frequency of 1.1 MHz, and a typical quiescent current of 3.8 mA. It is housed in a TSSOP-EP-16 package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual mono-channel architecture providing independent control for two separate outputs
• Synchronous rectification design ensuring high efficiency across load ranges
• Integrated power switch capability supporting continuous 1.4 A output current

Applications

• Portable electronics requiring multiple regulated voltage rails
• Industrial control systems with moderate power demands
• Embedded computing platforms needing efficient DC-DC conversion

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the part number matches the exact manufacturer designation from Analog Devices to ensure authenticity. Cross-reference the datasheet revision date during procurement to guarantee compatibility with latest manufacturing specifications.

Selection Notes

Select this component when designing circuits requiring two isolated buck converters from a single input source. Ensure the external inductor selection supports the 1.1 MHz frequency while meeting thermal requirements. Verify that the input voltage remains within the specified 3.6 V to 25 V window for stable operation.

Part Context

This part belongs to the LT1940 series of dual synchronous regulators. It complements other Analog Devices PMIC solutions by offering compact integration for space-constrained designs. The series focuses on balancing performance and size for portable applications.

Replacement Considerations

LT1940EFE#PBF