ISL78302AARMMZ-T

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

The ISL78302AARMMZ-T is an automotive-grade dual low-dropout (LDO) voltage regulator manufactured by Renesas Electronics. It provides two independent fixed 3V outputs, each capable of sourcing up to 300mA. The device operates with a wide input voltage range from 2.3V to 6.5V and features extremely low quiescent current of typically 47µA when both LDOs are active. It offers high power supply rejection ratio (PSRR) of 90dB at 1kHz and low output noise of typically 30µV RMS. Integrated protection includes overcurrent and thermal shutdown, along with individual enable pins and power-on-reset functions for each channel.

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

• Dual-channel architecture providing independent 300mA outputs with individual enable controls
• High performance characteristics including very high PSRR and low output noise for sensitive applications
• Integrated power-on-reset (POR) function with externally programmable delay for one channel
• Automotive qualification compliant with AEC-Q100 standards for reliability

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

• Powering sensors in automotive electronic control units
• Supplying actuators in smart vehicle systems
• Low-noise regulation for RF or analog circuits in automotive environments

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

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration as per manufacturer documentation. Confirm end-of-life status and final purchase date constraints before ordering. Ensure compatibility with moisture sensitivity level requirements during storage and assembly processes. Cross-reference the exact part number against official Renesas databases to validate current availability and production lifecycle status.

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

Select this component when dual isolated 3V rails are required for automotive sensor or actuator interfaces. Consider its low quiescent current for battery-operated systems requiring extended standby life. Evaluate the need for external timing capacitors if precise POR delay synchronization is necessary for the second output channel. Ensure input voltage remains within the specified 2.3V to 6.5V range for optimal regulation.

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

This device belongs to the ISL78302A series of high-performance dual LDO regulators designed for automotive applications. It integrates advanced features such as individual power-on-reset and reference bypass capabilities. The series is characterized by its ability to maintain stability with small output capacitance values while delivering high current performance in a compact package suitable for space-constrained automotive electronics.

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

Check for direct pin-compatible alternatives within the ISL78302 family that may offer different output voltages or packaging options. Verify if newer generations of Renesas automotive LDOs provide enhanced features or improved availability while maintaining electrical compatibility.