CAT6217-285TDGT3

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

The CAT6217-285TDGT3 is a 150 mA CMOS low dropout regulator manufactured by onsemi. It operates within an input voltage range of 2.3 V to 5.5 V and provides a fixed output voltage of 2.85 V with ±1.0% initial accuracy. The device features a typical dropout voltage of 90 mV at full load and supports stable operation with a 1 µF ceramic output capacitor. It includes a quick-start feature, zero shutdown current mode, and internal protections for thermal overload, under-voltage lockout, and short-circuit conditions.

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

• Low dropout voltage capability ensures efficient power regulation with minimal energy loss during high-load operations.
• Quick-start functionality allows the use of external bypass capacitors to reduce output noise without delaying turn-on time.
• Integrated thermal protection and under-voltage lockout circuits safeguard the device against overheating and insufficient supply voltages.
• Zero shutdown current mode significantly reduces power consumption in battery-operated applications when disabled.

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 component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance and package integrity upon receipt. Ensure proper handling procedures are followed to prevent electrostatic discharge damage. Review the latest datasheet revisions for any updates to electrical characteristics or ordering information before finalizing procurement specifications.

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

Select this regulator for applications requiring precise voltage regulation with minimal quiescent current. The fixed 2.85 V output suits systems needing stable power from single-cell lithium-ion sources. Consider the TSOT-23 package for space-constrained designs. Verify that the required load current does not exceed the 150 mA limit and that input voltage remains within the specified operating range.

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

This component belongs to the CAT6217 series of low dropout regulators designed for portable electronic devices. It is part of onsemi's portfolio of power management integrated circuits aimed at extending battery life through efficient voltage regulation and low standby currents.

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

Direct substitutes include other 150 mA LDOs with similar pinouts and voltage ratings. Verify compatibility regarding output voltage tolerance, package dimensions, and thermal performance before implementation.

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

What is the minimum output capacitance required for stability?

A 1 µF ceramic capacitor is required between the VOUT pin and ground to ensure stable operation.

How does the BYP pin function?

Connecting an optional 10 nF capacitor between the BYP pin and GND reduces output noise and enhances power supply rejection ratio at high frequencies.

What happens if the junction temperature exceeds the limit?

Thermal protection circuitry activates at approximately 160°C, shutting down the regulator to prevent damage until the temperature decreases.