LTC7803JMSE#WTRPBF

DC DC Switching Controllers Overview

The LTC7803JMSE#WTRPBF is a low quiescent current, synchronous step-down controller from Analog Devices. It supports input voltages from 4.5V to 40V and offers adjustable switching frequencies between 100kHz and 3MHz. The device features spread spectrum frequency modulation to reduce EMI noise. It includes clock synchronization, phase control, and enable functions. Packaged in a 16-lead MSOP package, it operates within a junction temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Integrates spread spectrum frequency modulation for enhanced electromagnetic interference reduction
• Supports external clock synchronization and multi-phase parallel operation
• Features low quiescent current architecture for improved efficiency at light loads

DC DC Switching Controllers Applications

• Industrial distributed power systems
• Point-of-load voltage regulation
• Battery-powered equipment power management

DC DC Switching Controllers Procurement Notes

Verify the specific suffix WTRPBF against official Analog Devices documentation to confirm tape and reel packaging and lead-free status. Ensure the JMSE variant matches the required thermal performance and operating temperature specifications for the target application environment before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when designing synchronous buck converters requiring high-frequency operation up to 3MHz with strict EMI constraints. It is suitable for applications needing precise phase alignment or external clock locking. Consider the 40V maximum input rating and 125°C junction temperature limit during thermal design and system integration.

DC DC Switching Controllers Part Context

This part belongs to the LTC7803 family of synchronous step-down controllers designed for high-efficiency power conversion. The family emphasizes low IQ and flexible frequency options. The specific model integrates standard control features with spread spectrum technology to optimize performance in noise-sensitive environments while maintaining compact board space requirements.

DC DC Switching Controllers Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Direct replacements must match the 40V input range, 16-lead MSOP package, and synchronous buck topology. Verify that any substitute maintains equivalent spread spectrum functionality and phase control capabilities.