CAT6219-250TDGT3

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

The CAT6219-250TDGT3 is a fixed-output low dropout regulator from onsemi, providing a nominal 2.5 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 supports ceramic capacitors for stability.

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.
• Zero shutdown current mode combined with low ground current ensures high efficiency in battery-powered applications.
• Internal thermal protection and fold-back current limit safeguard the device against overheating and short circuits.

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 & reel shipping configuration. Confirm that the fixed 2.5 V output variant matches the system design requirements rather than the adjustable version. Ensure compliance with RoHS standards as indicated by the manufacturer's lead-free specifications.

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

Select this component for designs requiring a stable 2.5 V rail with moderate current demands up to 500 mA. The low dropout characteristic allows operation from single-cell lithium-ion batteries. Consider the thermal resistance of the TSOT-23-5 package when determining power dissipation limits in high ambient temperature environments.

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

This part belongs to the CAT6219 series of CMOS LDO regulators designed for portable electronics. The series offers both fixed and adjustable output options across various packages including TSOT-23, WDFN, and TDFN. The CAT6219-250TDGT3 specifically denotes the fixed 2.5 V output version packaged in a TSOT-23-5 footprint.

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

Direct substitutes include other CAT6219 variants such as CAT6219-180TDGT3 or CAT6219-330TDGT3 if different voltage levels are acceptable. Cross-family replacements require matching pinout, current rating, and dropout voltage characteristics while verifying package compatibility.