LTC3260IMSE#PBF

Voltage Regulators - Linear + Switching Overview

The LTC3260IMSE#PBF is a power management IC featuring a negative output charge pump and two low-noise LDO regulators. It generates positive and negative supplies from a single input voltage ranging from 4.5V to 32V. The device provides one adjustable charge pump output with up to 100mA current capability and two independent LDO outputs, each supporting up to 50mA. Operating temperatures extend from -40°C to 125°C TJ. The switching frequency is programmable between 50kHz and 500kHz. It utilizes a 16-lead MSOP package with an exposed thermal pad for enhanced heat dissipation.

Voltage Regulators - Linear + Switching Feature Summary

• Integrates a negative output charge pump with dual low-noise LDO post-regulators for simultaneous positive and negative supply generation
• Features a programmable oscillator allowing switching frequencies between 50kHz and 500kHz
• Includes built-in short-circuit and thermal protection mechanisms for robust operation
• Maintains stability when utilizing ceramic capacitors in the circuit design

Voltage Regulators - Linear + Switching Applications

• Portable instrumentation requiring isolated positive and negative rails
• Battery-powered systems needing efficient voltage inversion
• Low-noise analog signal processing circuits
• Medical equipment power supplies
• Industrial control systems with wide input voltage ranges

Voltage Regulators - Linear + Switching Procurement Notes

Verify the suffix PBF indicates lead-free compliance and RoHS adherence. Confirm the IMSE variant specifies the industrial temperature range of -40°C to 125°C junction temperature. Ensure the 16-MSOP-EP package matches your PCB footprint requirements. Check for specific manufacturing date codes if long-term storage is planned. Validate that the supplier provides original manufacturer documentation for quality assurance.

Voltage Regulators - Linear + Switching Selection Notes

Select this component when a single input source must generate both positive and negative voltages efficiently. The IMSE grade is suitable for industrial environments requiring extended temperature performance. Consider the 100mA charge pump limit for load requirements. Evaluate the need for low-noise LDOs for sensitive analog sections. Compare package options against available board space and thermal constraints.

Voltage Regulators - Linear + Switching Part Context

This part belongs to the LTC3260 family of mixed-signal power management ICs. It combines charge pump technology with linear regulation to provide versatile power solutions. The series is designed for applications requiring compact size and high efficiency without magnetic components. Other variants may differ in temperature grades or packaging styles while maintaining core functionality.

Voltage Regulators - Linear + Switching Replacement Considerations

Direct substitutes include other Analog Devices charge pump/LDO combinations such as the LTC3210 or LTC3260HMSE#PBF for higher temperature ratings. Verify pin compatibility and electrical specifications before substitution. Cross-reference datasheets for equivalent noise performance and current capabilities.