LTC7810ILXE#PBF

DC DC Switching Controllers Overview

The LTC7810ILXE#PBF is a high-voltage, non-isolated dual-output synchronous buck DC/DC controller from Analog Devices. It features an input voltage range of 4.5V to 140V with a 150V absolute maximum rating. The device supports two independent outputs, each capable of delivering up to 20A, with adjustable output voltages ranging from 1V to 60V. Operating frequencies are selectable between 50kHz and 750kHz, or it can be synchronized to an external clock within the 75kHz to 720kHz range. The controller utilizes current-mode architecture for fast transient response and includes features such as DCR current sensing, burst mode operation, and a 90ns minimum on-time.

DC DC Switching Controllers Feature Summary

• Supports 100% duty cycle operation at low input voltages via an internal charge pump, enabling efficient battery discharge applications.
• Features a robust 1Ω N-channel MOSFET gate driver with configurable drive levels (6V, 8V, or 10V) to optimize efficiency with various MOSFET types.
• Offers flexible light-load management options including forced continuous conduction, pulse skipping, and low ripple Burst Mode operation.
• Includes an EXTVCC pin that allows driving an external N-channel MOSFET to power the IC, reducing internal power dissipation in high-voltage scenarios.

DC DC Switching Controllers Applications

• Transportation systems requiring high input voltage tolerance
• Industrial automation and robotics power supplies
• Data communication equipment with wide input ranges
• Always-on systems demanding ultra-low quiescent current

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm package integrity and marking accuracy against official datasheet specifications. Ensure storage conditions comply with moisture sensitivity level requirements prior to soldering. Request batch-specific test reports if required for automotive or industrial qualification processes.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring dual isolated or non-isolated outputs from a high-voltage bus. Consider the 16µA sleep current for standby-sensitive applications. Evaluate thermal performance given the 7mm x 7mm eLQFP package. Choose between standard and automotive temperature grades based on environmental constraints. Verify compatibility with external MOSFET gate drive requirements.

DC DC Switching Controllers Part Context

This component belongs to the Power by Linear™ portfolio, designed for high-efficiency power conversion. It addresses the need for compact, high-voltage solutions in space-constrained environments. The dual-output architecture simplifies board layout compared to using separate single-output controllers. It complements other high-voltage regulators by providing precise synchronization and advanced protection features.

DC DC Switching Controllers Replacement Considerations

No direct public substitute part numbers are documented for this specific variant. Designers should evaluate family members like the LTC7811 or LTC7812 for different topology requirements. Cross-reference pinouts and electrical parameters carefully when considering alternative controllers from other manufacturers.