ET551ADJY1B

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

The ET551ADJY1B is a CMOS-based low-dropout linear regulator manufactured by ETEK Microelectronics. It provides an adjustable positive output with a maximum current of 800mA using an NMOS pass transistor. The device features a separate bias supply voltage (VBIAS) for optimized performance. It operates within a temperature range of -40°C to 85°C and is housed in a compact 6-DFN package measuring 1.2x1.2mm.

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

• CMOS-based architecture with NMOS pass transistor for efficient power regulation
• Separate bias supply voltage (VBIAS) input for enhanced operational flexibility
• Integrated protection mechanisms including over-current, over-temperature, and under-voltage lockout

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

• Portable electronic devices requiring low-power linear regulation
• Battery-powered systems needing stable adjustable voltage outputs
• Embedded circuits utilizing separate bias supply configurations

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

Verify the specific suffix and marking code against the manufacturer's official datasheet to ensure compatibility with your design requirements. Confirm that the VBIAS pin connection aligns with your system's bias voltage availability. Check RoHS compliance status and moisture sensitivity level before procurement to meet environmental and assembly standards.

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

Select this component when a low-noise, adjustable LDO with high current capability is required. Ensure the input voltage exceeds the dropout voltage at the desired load current. Verify that the separate VBIAS pin can be powered independently or derived from the main supply without violating absolute maximum ratings.

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

ETEK Microelectronics specializes in high-performance analog integrated circuits. The ET551ADJY1B belongs to their line of low-dropout regulators designed for efficiency and compactness. This part complements their portfolio of power management solutions for consumer and industrial electronics.

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

Consult official substitution lists for direct equivalents. Verify pin compatibility, especially the VBIAS pin configuration, when considering alternative LDOs. Ensure thermal performance and package dimensions match the existing footprint.