LTC1550CS8-4.1#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC1550CS8-4.1#TRPBF is a monolithic switched capacitor voltage converter manufactured by Analog Devices Inc., housed in an 8-lead SOIC package. It functions as a charge pump to generate negative output voltages from positive supply rails. The device operates with an internal oscillator frequency of approximately 200 kHz, enabling efficient energy transfer through external capacitors. Key electrical specifications include a typical output impedance of 30 ohms and a maximum input voltage rating of 6V. It supports input voltages ranging from 2.7V to 6V, delivering regulated negative outputs suitable for biasing analog circuits.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Monolithic integrated charge pump architecture eliminates the need for external inductors
• Internal oscillator provides fixed switching frequency for simplified design
• Compact surface-mount packaging facilitates automated assembly

Voltage Regulators - DC DC Switching Regulators Applications

• Biasing operational amplifiers requiring dual supplies
• Providing negative voltage rails for ADC/DAC reference inputs
• Powering RS-232 interface transceivers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the -4.1 variant designation matches the required output voltage ratio or specification against the official datasheet. Ensure the CS8 package type aligns with PCB footprint requirements. Cross-reference the manufacturer part number directly with authorized distributors to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, inductor-free solution for generating negative voltage is required. Consider the 30-ohm output impedance for load regulation capabilities. Evaluate the 2.7V minimum input voltage constraint against system power rails. Compare performance against discrete solutions if higher current drive or lower noise is necessary.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC1550 family of switched capacitor converters. These devices are designed for low-power applications where space constraints prohibit magnetic components. The series offers various output configurations and voltage ratios to support diverse analog circuit biasing needs within portable and battery-operated systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for compatible parts with similar pinouts and electrical characteristics. Verify that alternative charge pumps meet the 2.7V to 6V input range and provide equivalent output impedance. Ensure package compatibility before replacing the LTC1550CS8-4.1#TRPBF with other manufacturers' offerings.