ET63133YB

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

The ET63133YB is a CMOS low-dropout regulator from ETEK Microelectronics, designed for portable battery-powered applications requiring ultra-low quiescent current. It features an operating input voltage range of 2.2V to 5.5V and provides a fixed output voltage of 3.3V. The device delivers a typical quiescent current of 0.6µA and supports up to 150mA output current with a typical dropout voltage of 240mV at 150mA. It offers high output voltage accuracy of ±1% and is stable with 1µF ceramic capacitors. The component includes over-current protection and thermal shutdown, housed in a compact DFN4 (1×1mm) package.

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 with excellent dynamic performance via dynamic quiescent current adjustment

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' confirms the DFN4 (1x1mm) package configuration as distinct from the 'B' suffix which indicates SOT23-5. Confirm the output voltage code '33' corresponds to the fixed 3.3V setting within the 1.1V to 3.6V range. Ensure compliance requirements such as Pb-free and RoHS status are documented in the official datasheet for the specific manufacturing batch.

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

Select this component when ultra-low standby current is critical for battery-operated systems. The 150mA current capability suits moderate load requirements while maintaining high efficiency. The small DFN4 package is ideal for space-constrained designs. Verify that the required output voltage matches the fixed 3.3V option, as adjustable variants require different part numbering.

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

The ET631XX series comprises CMOS LDO regulators optimized for mobile and portable electronics. This family emphasizes low power consumption and small form factors, utilizing either DFN4 or SOT23-5 packages. The series supports various fixed output voltages in 0.05V steps, catering to diverse logic and sensor supply needs in modern handheld devices.

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

Public confirmed substitute part numbers are not available in the provided documentation.