CAT6219-285TDGT3

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

The CAT6219-285TDGT3 is a fixed-output CMOS low dropout regulator providing a nominal 2.85 V output with a guaranteed peak current of 500 mA. It operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 300 mV at full load. The device includes a quick-start feature, under-voltage lockout, and zero shutdown current. It offers ±1.0% initial accuracy for outputs ≥2.0 V and maintains stability with small ceramic capacitors.

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

• Provides fast transient response during load and line changes
• Features a quick-start capability allowing external bypass capacitor use without affecting turn-on time
• Includes internal thermal protection and fold-back current limit
• Supports stable operation using small value ceramic output capacitors

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 the specific ordering suffix TDGT3 corresponds to the TSOT-23 package and NiPdAu lead finish as documented in the official datasheet. Confirm that the RV marking code aligns with the 2.85 V fixed output variant. Ensure compliance with RoHS standards and check for any regional shipping restrictions or discontinuation notices prior to finalizing procurement plans.

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

Select this component when a fixed 2.85 V rail is required from a 2.3 V to 5.5 V supply source. It is suitable for applications demanding high initial accuracy and low quiescent current. Consider the thermal resistance of the TSOT-23 package if continuous 500 mA loads are expected, as thermal protection may activate under specific ambient conditions.

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

This part belongs to the CAT6219 family of 500 mA CMOS LDO regulators manufactured by onsemi. The family includes various fixed voltage options and an adjustable version, available in TSOT-23, WDFN, and TDFN packages. The CAT6219 series is designed for battery-operated systems requiring efficient power management and compact board space solutions.

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

Direct substitutes include other CAT6219 variants such as CAT6219-280TDGT3 or CAT6219-330TDGT3 if different fixed voltages are acceptable. Cross-referencing pinouts and package dimensions is essential when considering alternative manufacturers' LDOs with similar electrical specifications.