LT1765ES8#PBF

Overview

The LT1765ES8#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3 V to 25 V and delivers an adjustable output voltage up to 20 V. The device provides a maximum output current of 2.4 A and features a fixed switching frequency of 1.25 MHz. It incorporates a shutdown function with a quiescent current of 15 µA. The component is housed in an 8-lead SOIC package and supports operation temperatures from -40°C to +125°C.

Feature Summary

• Integrates a high-frequency 1.25 MHz switch for compact passive component sizing
• Includes internal compensation and soft-start circuitry for stable regulation
• Features a low-power shutdown mode to minimize standby consumption

Applications

• Portable equipment power supplies requiring high efficiency
• Battery-powered systems needing extended runtime
• General-purpose step-down conversion in embedded electronics

Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance when sourcing. Confirm the ES8 package designation matches the required 8-SOIC footprint for PCB layout compatibility. Ensure the supply chain source provides valid manufacturer documentation to guarantee authenticity and traceability for critical design implementations.

Selection Notes

Select this component when a single-output buck converter with moderate current capability is required. The 1.25 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider thermal management requirements due to the SOIC package limitations at higher load currents relative to larger packages.

Part Context

This part belongs to the LT1765 series of space-saving dual-output or single-output regulators. It shares core architecture with variants like LT1765EFE#PBF, which utilizes a 16-TSSOP package. The ES8 suffix specifically denotes the surface-mount SOIC configuration suitable for standard industrial assembly processes.

Replacement Considerations

LT1765ES8#TRPBF offers identical electrical performance but utilizes tape-and-reel packaging instead of tubes.