CAT6217-180TDGT3

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

The CAT6217-180TDGT3 is a fixed-output low dropout regulator from onsemi, providing a nominal 1.8 V output with a guaranteed maximum load current of 150 mA. It operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 90 mV at full load. The device includes a quick-start feature enabling a turn-on time of approximately 150 µs, alongside a shutdown mode drawing negligible current. It maintains ±1.0% initial accuracy for outputs of 2.0 V or higher and utilizes a 5-lead TSOT-23 package.

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

• Quick-start functionality allows the use of external bypass capacitors to reduce output noise without extending turn-on time.
• Stable operation is ensured with small ceramic output capacitors, minimizing board space requirements.
• Integrated thermal protection and under-voltage lockout circuits safeguard against overheating and low supply conditions.
• Zero current shutdown mode combined with low ground current supports extended battery life in portable applications.

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

• Cellular phones
• Battery-powered devices
• Consumer electronics

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

Verify that the specific part number suffix matches the required output voltage tolerance and package configuration. Confirm RoHS compliance status and ensure the supplier provides valid traceability documentation. Cross-reference the ordering information section of the official datasheet to validate the exact pinout and marking code before finalizing procurement orders.

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

Select this component when a compact LDO solution is needed for low-power portable systems requiring fast transient response. Ensure the application input voltage remains within the 2.3 V to 5.5 V operating range. Verify that the load current does not exceed the 150 mA guarantee and that the PCB layout accommodates the required 1 µF ceramic output capacitor for stability.

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

This device belongs to the CAT6217 family of 150 mA CMOS low dropout regulators manufactured by onsemi. The series is designed for battery-operated equipment, offering high line and load regulation with minimal quiescent current consumption. The family shares common internal architectures but varies in fixed output voltages and packaging options to suit diverse embedded power management needs.

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

Consult the official datasheet for verified substitute part numbers within the same product family. Ensure any replacement maintains identical pin configurations and electrical characteristics compatible with the existing circuit design constraints.