LTC3260MPMSE#TRPBF

Overview

The LTC3260MPMSE#TRPBF is a dual-output charge pump regulator manufactured by Analog Devices Inc., designed for generating positive and negative voltages from a single supply. It operates with an input voltage range of 4.5V to 32V and delivers up to 100mA per output channel. The device features an adjustable switching frequency between 50kHz and 500kHz, allowing optimization for efficiency or external component size. Packaged in a 16-lead MSOP with exposed pad (MSOP-EP) for enhanced thermal performance, it supports a junction temperature range of -40°C to 150°C. Key electrical parameters include a typical output ripple of 30mV and a shutdown current of less than 1µA.

Feature Summary

• Generates dual independent positive and negative output voltages from a single input source
• Features adjustable switching frequency to optimize trade-offs between efficiency and passive component size
• Includes integrated shutdown mode for significant power reduction during idle periods
• Utilizes an exposed thermal pad package design to facilitate efficient heat dissipation

Applications

• Portable instrumentation requiring bipolar power supplies
• Medical equipment utilizing isolated signal chains
• Industrial sensor interfaces needing negative rail generation
• Battery-powered systems requiring extended operational life through low quiescent current

Procurement Notes

Verify the specific suffix 'MP' against official Analog Devices documentation to confirm military-grade qualification requirements. Ensure the procurement channel provides traceability for the exposed pad MSOP packaging. Confirm that the requested quantity aligns with the manufacturer's standard reel specifications. Cross-reference the date code to ensure compliance with current RoHS directives and material declarations.

Selection Notes

Select this component when a compact solution is required to generate both positive and negative rails from a single unregulated source. The adjustable frequency feature allows designers to minimize external capacitor sizes while maintaining acceptable ripple levels. Consider the thermal characteristics of the MSOP-EP package for high-current applications where ambient temperatures may approach the upper operating limit.

Part Context

This part belongs to the LTC3260 family of dual charge pump regulators. It shares architectural similarities with other Analog Devices charge pump solutions but is distinguished by its specific military-grade variant designation and dual-output capability. The family is designed to replace traditional transformer-based or inductor-based dual-rail generators in space-constrained environments.

Replacement Considerations

Public confirmed substitute part numbers: LTC3260HMSE#TRPBF, LTC3260IMSE#TRPBF, LTC3260EMSE#TRPBF.