LTC7840HFE#PBF

DC DC Switching Controllers Overview

The LTC7840HFE#PBF is a dual-phase, non-synchronous boost controller manufactured by Analog Devices Inc. It supports Boost, Flyback, and SEPIC topologies with two independent outputs. The device operates within an input voltage range of 5.5 V to 60 V and features a programmable switching frequency from 50 kHz to 425 kHz. It accommodates a maximum duty cycle of 96% and includes a shutdown function. The component is housed in a TSSOP-28 package and is rated for operation between -40°C and +150°C.

DC DC Switching Controllers Feature Summary

• Dual-phase control architecture supporting independent output regulation
• Supports multiple converter topologies including Boost, Flyback, and SEPIC
• Integrated shutdown capability for power management
• Non-isolated design suitable for wide input voltage ranges

DC DC Switching Controllers Applications

• Industrial power systems requiring multi-rail generation
• Telecommunications infrastructure power supplies
• Automotive electronics utilizing high-voltage inputs
• Battery-powered equipment needing efficient step-up conversion

DC DC Switching Controllers Procurement Notes

Verify the suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the HFE sub-code corresponds to the specified temperature grade and package variant. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure compatibility with existing board designs and regulatory requirements.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring dual isolated or non-isolated outputs from a single high-voltage source. Evaluate the thermal performance within the TSSOP-28 package against the expected load current. Ensure the external component selection supports the desired switching frequency range and topology configuration for optimal efficiency and stability.

DC DC Switching Controllers Part Context

This component belongs to the LTC7840 series of high-performance switching controllers designed for demanding power conversion tasks. It complements other Analog Devices PMIC solutions by offering flexible topology support. The device integrates essential control loops while relying on external power stages for current handling.

DC DC Switching Controllers Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Check pinout compatibility and electrical specifications before replacing. Generic equivalents may not match the specific thermal or timing characteristics required for this application.