CAT6219-280TDGT3

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

The CAT6219-280TDGT3 is a fixed-output low dropout regulator from onsemi, providing a stable 2.80 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 under-voltage lockout, thermal protection, and fold-back current limiting. It utilizes a TSOT-23-5 package and offers ±1.0% initial accuracy for outputs above 2.0 V.

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

• Quick-start feature enables fast turn-on time without compromising noise performance when using an external bypass capacitor.
• Capable of maintaining stability with small-value ceramic output capacitors, reducing board space requirements.
• Includes zero shutdown current mode and internal under-voltage lockout circuitry for enhanced power management.

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-23-5 package and tape-and-reel shipping format. Confirm that the RoHS-compliant lead finish matches project material specifications. Ensure the component meets all environmental compliance standards required by the target market before finalizing procurement orders.

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

Select this component when a fixed 2.80 V rail is required with up to 500 mA capability in a compact surface-mount footprint. Consider the quick-start feature if rapid system initialization is critical. Verify that the operating temperature range of -40°C to +125°C aligns with the intended application environment and thermal constraints.

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

This part belongs to the CAT6219 family of CMOS low dropout regulators manufactured by onsemi. The series provides various fixed voltage options and an adjustable variant, all sharing common features like low ground current and high power supply rejection ratio. The family is designed for portable applications requiring efficient power management in small packages.

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

Direct substitutes include other CAT6219 variants such as CAT6219-330TDGT3 or CAT6219ADJTD-GT3 if voltage levels differ. Cross-brand replacements require matching the 500 mA current rating, 2.3 V to 5.5 V input range, and TSOT-23-5 package dimensions to ensure pin compatibility and thermal performance.