LTC7803JUD#WPBF

DC DC Switching Controllers Overview

The LTC7803JUD#WPBF is a low quiescent current synchronous buck controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 40V and supports switching frequencies from 100kHz to 3MHz. The device features a 16-WFQFN (3x3) package with exposed pad, suitable for surface mount installation. It offers a maximum duty cycle of 100% and includes clock synchronization capabilities. The operational junction temperature range extends from -40°C to 150°C.

DC DC Switching Controllers Feature Summary

• Integrates spectrum frequency modulation to reduce EMI emissions
• Supports external clock synchronization for multi-phase alignment
• Provides phase control capability for interleaved operation

DC DC Switching Controllers Applications

• Industrial power supply systems
• Automotive electronics power distribution
• Telecommunications infrastructure equipment

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation against official documentation to confirm package type and temperature grade accuracy. Ensure that the component matches the required thermal performance specifications for the intended application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when high efficiency and low standby power consumption are critical requirements. The wide input voltage range accommodates various bus architectures. Consider the thermal characteristics of the QFN package for heat dissipation planning. Evaluate the need for spread spectrum functionality to meet electromagnetic compatibility standards in sensitive environments.

DC DC Switching Controllers Part Context

This component belongs to the LTC7803 family of synchronous step-down controllers designed for high-performance applications. The series emphasizes low IQ operation and flexible switching frequency options. It serves as a core power management solution for systems requiring compact footprints and robust regulatory compliance features.

DC DC Switching Controllers Replacement Considerations

LTC7803EMSE#PBF

DC DC Switching Controllers FAQ

Does the LTC7803 support external clock synchronization?

Yes, the device includes a CLKIN pin that allows for external clock synchronization.

What is the maximum operating junction temperature?

The maximum operating junction temperature is 150°C.