ET63333YB

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

The ET63333YB is a CMOS low dropout regulator from ETEK Microelectronics, designed for portable battery-powered applications. It features an ultra-low quiescent current of 0.6 µA and supports an operating input voltage range of 2.2 V to 5.5 V. The device provides a fixed output voltage of 3.3 V with a maximum output current of 150 mA. It offers high output voltage accuracy of ±1% and a typical dropout voltage of 240 mV at 150 mA. The regulator is stable with ceramic capacitors as small as 1 µF and includes over-current and thermal shutdown protection.

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

• Ultra-low quiescent current consumption ensures extended battery life in portable devices.
• Dynamic transient boost feature improves device response for wireless communication applications.
• High output voltage accuracy maintains stable power delivery under varying load conditions.
• Integrated over-current and thermal shutdown protection safeguards against fault conditions.

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

• Battery powered equipments
• Portable communication equipments
• Cameras, image sensors and camcorders

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

Verify the specific suffix 'YB' corresponds to the 4-DFN (1x1) package configuration. Confirm the fixed output voltage is 3.3 V as indicated by the model number. Ensure compatibility with ceramic capacitors of 1 µF or greater for stability. Check RoHS compliance status if required for your manufacturing process. Validate that the input voltage range of 2.2 V to 5.5 V matches your system design requirements.

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

Select this component when ultra-low standby current is critical for battery longevity. The 150 mA output current capability suits low-power digital loads. The small 1x1 mm DFN package is ideal for space-constrained portable designs. Consider the dynamic transient response benefits for wireless modules. Ensure the application operates within the specified 2.2 V to 5.5 V input range.

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

This part belongs to the ET631xx series of CMOS low dropout regulators manufactured by ETEK Microelectronics. The series is engineered specifically for portable, battery-powered electronics requiring efficient power management. The ET63333YB variant utilizes the YB suffix to denote the 4-DFN (1x1) package type, distinguishing it from other package options like SOT23-5 available in the same family.

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

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications before considering alternative components from other manufacturers. Ensure any replacement meets the 0.6 µA quiescent current requirement and 150 mA output capability.