LTC3642EMS8E-5#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3642EMS8E-5#TRPBF is a high-efficiency, high-voltage synchronous step-down DC/DC converter manufactured by Analog Devices Inc. It features internal high-side and synchronous power switches within an MSOP-8 package. The device provides a fixed 5 V output with a maximum current of 50 mA. It operates from an input voltage range of 4.5 V to 45 V. The typical quiescent current is 12 uA at no load while maintaining regulation. The switching frequency is adjustable, and the component supports operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High efficiency synchronous buck topology with integrated power switches
• Ultra-low quiescent current consumption during light-load conditions
• Adjustable switching frequency for optimized design flexibility
• Wide input voltage capability suitable for high-voltage applications

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive electronics systems
• Industrial control equipment
• Battery-powered portable devices
• Telecommunications infrastructure

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing components. Confirm the manufacturer is Analog Devices Inc. to ensure authenticity. Check RoHS compliance status as required by project specifications. Validate the MSOP-8 package dimensions against PCB footprint requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a compact solution with wide input voltage tolerance. The 50 mA output current limits suitability to low-power loads. Consider the adjustable frequency feature to minimize external inductor size or reduce EMI noise. Ensure the thermal performance of the MSOP-8 package meets the application's heat dissipation needs under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3642 family of high-voltage synchronous step-down converters. The family includes variants with different output voltages and packages, such as the IDD and IMS8E series. These devices are designed to replace linear regulators in high-voltage applications to improve efficiency and reduce heat generation. The specific model integrates all necessary control logic and power stages into a small form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LTC3642 variants with compatible pinouts and electrical characteristics. Verify that alternative parts support the same 45 V maximum input voltage and 50 mA output current. Ensure the replacement package matches the MSOP-8 footprint if board space is constrained. Cross-reference datasheets for thermal resistance and switching frequency ranges.