LT1175CT-5#PBF

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LT1175CT-5#PBF is a negative micropower low dropout regulator in a 5-lead plastic TO-220 package. It provides a fixed -5V output with a maximum current of 500mA. The device features 45μA quiescent current, dropping to 10μA in shutdown. It operates within a junction temperature range of 0°C to 125°C. Key electrical characteristics include a feedback sense voltage of 5.0V typical and an output voltage initial accuracy of ±0.5%. Dropout voltage ranges from 0.18V at 100mA to 0.5V at 500mA.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Fixed 5V output version available
• Tolerates reverse output voltage without damage or latchup
• User-selectable current limit via ILIM pins
• Shutdown pin interfaces directly to positive or negative logic levels

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered systems
• Modems
• Instrumentation
• Interface drivers

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and RoHS compliance when ordering. Confirm the CT designation corresponds to the TO-220 package type required for your thermal management strategy. Ensure the -5 variant matches the fixed voltage requirement rather than the adjustable version. Cross-reference the manufacturer's latest order information to confirm availability and marking details.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for applications requiring negative voltage regulation with minimal quiescent current consumption. The fixed 5V output simplifies design by eliminating external resistor dividers. Consider the TO-220 package for its thermal performance if higher power dissipation is expected. Verify that the input-to-output differential voltage remains within safe operating limits to prevent excessive heat generation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the LT1175 family of negative micropower regulators. The family includes adjustable versions and various package options such as PDIP, SO, SOT-223, and DD-Pak. The LT1175 series is designed for high efficiency and stability across a wide range of output capacitors. It shares core architectural features like anti-saturation design and blowout protection with other variants in the lineup.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

LT1175CT-5#TRPBF (Tape and Reel version)