CAT6219VP5330GT4

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

The CAT6219VP5330GT4 is a fixed-output 3.3 V CMOS low dropout regulator with a guaranteed 500 mA peak output current. 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 provides ±1.0% initial accuracy for outputs ≥ 2.0 V and includes under voltage lockout, thermal protection, and fold-back current limit. It utilizes a TDFN-6 (2.0 x 2.0 mm) package.

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

• Quick-start feature enables fast turn-on time without requiring large external capacitors.
• Stable operation is maintained using small value ceramic output capacitors.
• External bypass capacitor connection reduces output noise and enhances power supply rejection ratio.
• Zero shutdown current mode minimizes ground current consumption during standby.

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 VP5 suffix indicates the TDFN-6 package configuration. Confirm the GT4 suffix aligns with the required tape and reel shipping format. Ensure the component meets RoHS compliance standards for lead-free and halogen-free requirements before integration into final assemblies.

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

Select this regulator when a stable 3.3 V rail is required from a 2.3 V to 5.5 V source. The low dropout characteristic supports efficient battery operation. Verify that the application requires the specific TDFN-6 footprint and does not necessitate the adjustable variant or alternative package types like TSOT-23.

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

This component belongs to the CAT6219 series of 500 mA CMOS LDO regulators manufactured by onsemi. The series offers both fixed and adjustable output options across multiple package styles including TSOT-23, WDFN, and TDFN. The VP5330 designation specifically identifies the fixed 3.3 V output version housed in the compact TDFN-6 package.

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

CAT6219VP5ADJGT4

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

What is the function of the BYP pin?

The BYP pin allows connection of an optional external capacitor to reduce output noise and enhance the power supply rejection ratio at high frequencies.

How does the quick-start feature benefit the circuit?

It allows the use of an external bypass capacitor to reduce overall output noise without negatively affecting the regulator's turn-on time.