ET51633YB

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

The ET51633YB is a positive fixed linear voltage regulator IC from ETEK Microelectronics, delivering a fixed output voltage with a maximum load current of 300mA. It utilizes advanced CMOS technology and a PMOS pass element to achieve high power supply rejection ratio (PSRR), low noise, and low dropout voltage. The device features automatic discharge functionality, fast startup time, low ground current, and excellent output accuracy, making it suitable for precision analog applications.

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

• High power supply rejection ratio (PSRR) and low noise performance
• Low dropout voltage operation with low ground current consumption
• Automatic discharge function for rapid output voltage decay

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

• Precision analog circuits requiring low noise power supplies
• Battery-powered devices demanding low quiescent current
• Systems requiring fast startup and stable output regulation

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

Verify the specific suffix 'YB' against the manufacturer's official datasheet to confirm package type and temperature range. Ensure compatibility with input voltage requirements and thermal management needs for the 4-DFN (1x1) package. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

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

Select this component when low noise and high PSRR are critical for sensitive analog loads. The 300mA output current limits its use in high-power applications. Consider the low dropout characteristic for battery-operated systems where input-output differential voltage must be minimized.

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

This part belongs to the ET516XX series of low-dropout linear regulators designed by ETEK Microelectronics. The series emphasizes high-performance analog characteristics, including improved PSRR and reduced noise compared to standard LDOs. It is part of the company's portfolio focused on mobile and embedded power management solutions.

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

Check for pin-compatible alternatives within the same family, such as other ET516xx variants with different fixed output voltages. Verify that substitute parts maintain similar PSRR and noise specifications if used in noise-sensitive circuits.