LTC7803EMSE#PBF

DC DC Switching Controllers Overview

The LTC7803EMSE#PBF is a low quiescent current synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 40V and supports adjustable output voltages from 800mV to 40V. The device features a programmable switching frequency ranging from 100kHz to 3MHz and incorporates spread spectrum technology for EMI reduction. It utilizes a 16-lead MSOP package with exposed pad, suitable for surface mount applications across a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Integrates spread spectrum modulation to reduce peak electromagnetic interference emissions
• Supports clock synchronization for multi-phase or parallel system operation
• Provides phase control capability for interleaved multi-phase configurations
• Features ultra-low quiescent current for high efficiency in light load conditions

DC DC Switching Controllers Applications

• Industrial equipment power distribution systems
• Telecommunications infrastructure power supplies
• Automotive infotainment and control unit regulation
• Point-of-load conversion for digital signal processors

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with required thermal management solutions for the MSOP-16EP package. Confirm RoHS compliance status through the manufacturer's latest material declaration. Validate that the ordering part number matches the exact electrical specifications required for the design.

DC DC Switching Controllers Selection Notes

Select this component when designing synchronous buck converters requiring wide input voltage ranges up to 40V. Consider its low IQ characteristics for battery-powered or energy-efficient applications. Evaluate the 3MHz maximum switching frequency for compact passive component sizing. Ensure the design accommodates the 16-lead MSOP footprint and thermal requirements for the exposed pad configuration.

DC DC Switching Controllers Part Context

This controller belongs to the LTC7803 family of high-performance synchronous buck controllers. It shares core architecture with other variants like the LTC7803JUD#WTRPBF but differs in packaging and temperature rating. The EMSE designation indicates a specific MSOP package variant intended for general-purpose industrial and commercial applications within the Analog Devices PMIC portfolio.

DC DC Switching Controllers Replacement Considerations

Direct pin-compatible alternatives within the same family include the LTC7803JUD#WTRPBF, which offers identical functionality in a QFN package. Verify thermal performance differences between MSOP and QFN packages when substituting. Cross-reference datasheets to ensure switching frequency and control loop stability remain consistent.