ET5904A

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

The ET5904A is a multi-channel Low Dropout (LDO) linear regulator manufactured by ETEK Microelectronics. It belongs to the company's multi-LDO product line, which supports channel counts ranging from two to seven and output currents between 2A and 7A. The device operates with an input voltage range of 0.6V to 4.35V. Key electrical characteristics include a quiescent current of 80uA to 150uA, a Power Supply Rejection Ratio (PSRR) of 70dB to 92dB at 1kHz, and an output noise voltage effective value ranging from 8uVrms to 60uVrms.

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

• Multi-channel integration capability supporting up to seven independent outputs within a single package
• High power supply rejection ratio ensuring stable regulation under varying input conditions
• Ultra-low quiescent current consumption for enhanced energy efficiency in portable applications

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

• Portable electronic devices requiring multiple regulated voltage rails
• Battery-powered systems prioritizing low standby power consumption
• Embedded circuits needing simultaneous supply voltages for mixed-signal components

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

Verify the specific suffix code associated with the ET5904A part number to confirm exact output voltage configurations and channel counts. Cross-reference official datasheets to ensure compatibility with required input voltage ranges and thermal management constraints. Confirm RoHS compliance status and packaging options directly with the manufacturer or authorized distributors before finalizing procurement specifications.

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

Select this component when designing systems that require multiple distinct voltage levels from a single input source without excessive board space usage. Consider the specified PSRR and noise performance if powering sensitive analog or RF sections. Ensure the total output current requirements across all channels remain within the device's rated limits to maintain regulatory stability and thermal safety.

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

ETEK Microelectronics specializes in power management integrated circuits, including LDOs, DC-DC converters, and battery chargers. The ET5904A falls under their multi-LDO category, designed to consolidate multiple voltage regulation functions into a compact form factor. This approach reduces component count and simplifies layout compared to using discrete single-channel regulators for each voltage rail.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical parameter equivalence with alternative multi-channel LDOs from other manufacturers if sourcing constraints require substitution.