CAT6221-PLTD-GT3

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

The CAT6221-PLTD-GT3 is a dual-output CMOS linear voltage regulator (LDO) manufactured by onsemi. It provides two fixed positive output voltages: Output 1 at 3.0V and Output 2 at 2.7V. Each channel supports a maximum load current of 300 mA. The device operates within an input voltage range of 2.5 V to 5.5 V. It utilizes a TSOT-23-6 surface-mount package. Key electrical characteristics include a typical quiescent current of 40 µA and a dropout voltage of 350 mV at full load. The component is rated for operation between -40°C and +85°C.

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

• Dual independent output channels providing fixed 3.0V and 2.7V rails
• High current capability with 300 mA per channel support
• Low quiescent current consumption for power efficiency
• Compact TSOT-23-6 surface-mount packaging

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

• Portable electronic devices requiring multiple supply rails
• Battery-powered systems needing efficient voltage regulation
• Embedded circuits utilizing CMOS logic families
• Communication modules with specific voltage requirements

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

Verify the exact output voltage configuration, as the PLTD suffix indicates specific fixed outputs (3.0V/2.7V). Confirm the package type matches the design footprint, as other suffixes may denote different packages like SOT-23-6 or PPTD variants. Check for end-of-life status or alternative recommendations from onsemi before finalizing procurement plans.

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

Select this component when dual isolated LDO outputs are required in a small form factor. Ensure the input voltage remains above the dropout threshold for both channels under maximum load conditions. Consider thermal dissipation capabilities given the 300 mA rating per channel. Verify that the fixed output voltages align precisely with the target circuit requirements without need for external adjustment.

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

This part belongs to the CAT6221 family of dual LDO regulators from onsemi. Other variants in the series, such as CAT6221-PPTD-GT3 or CAT6221.SPTD.GT3, offer different output voltage combinations or package options. The family is designed for low-noise, high-PSRR applications in portable electronics. The PLTD suffix specifically defines the 3.0V and 2.7V output combination in the TSOT-23-6 package.

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

Direct substitutes include other CAT6221 variants with compatible output voltages and packages, such as CAT6221-SPTD-GT3 if pinout and package match. Cross-reference with onsemi's official replacement guide for discontinued or obsolete parts. Ensure any substitute maintains the 300 mA current rating and TSOT-23-6 footprint.