LTC3548IMSE#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3548IMSE#TRPBF is a dual synchronous step-down DC/DC converter manufactured by Analog Devices Inc. It operates within an input voltage range of 2.5 V to 5.5 V and provides two independent outputs adjustable from 600 mV to 5 V. Each channel supports up to 800 mA output current, with one channel capable of 400 mA. The device features a fixed switching frequency of 2.25 MHz and a typical quiescent current of 40 uA. It is housed in a 10-lead MSOP package and functions reliably across an operating temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual synchronous buck topology for independent power rail generation
• Integrated high-side and low-side MOSFETs for efficient conversion
• Fixed 2.25 MHz switching frequency to minimize external component size
• Low quiescent current operation for enhanced battery efficiency

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring multiple low-voltage rails
• Battery-powered systems with strict space constraints
• Embedded applications needing compact power management solutions
• Industrial control modules utilizing single-cell lithium-ion batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation to ensure correct packaging and temperature grade. Confirm availability status as distribution channels may list limited stock or end-of-life notices. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require two isolated, low-noise power supplies from a single cell source. Ensure the total load current does not exceed the thermal limits defined in the datasheet. Verify that the required output voltages fall within the specified 600 mV to 5 V range. Consider the 2.25 MHz frequency impact on inductor selection and EMI performance relative to system requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3548 series of dual synchronous step-down converters designed for mobile and portable applications. It integrates power switches and control logic into a small footprint, reducing the need for external components compared to discrete solutions. The series targets applications where board space and power efficiency are critical design constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.