ISL78302AARJMZ

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

The ISL78302AARJMZ is a dual low-dropout (LDO) voltage regulator from the Renesas ISL78302A series, housed in a 10-lead DFN package. It provides two independent fixed output voltages of 2.8V and 3.0V, each capable of sourcing up to 300mA. The device operates with an input voltage range of 2.3V to 6.5V and features a typical quiescent current of 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. The regulator includes individual power-on-reset functions and separate enable pins for each channel.

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

• Integrates two high-performance 300mA LDO channels with excellent transient response
• Features very high PSRR and extremely low output noise for sensitive applications
• Includes individual power-on-reset (POR) functions with programmable delay for one channel
• Supports wide input voltage range with low standby current consumption

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

• Automotive electronic control units requiring clean power rails
• Sensor interfaces demanding low noise and high PSRR
• Embedded systems utilizing AEC-Q100 qualified components
• Power management for microcontrollers and communication modules

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

Verify the specific suffix 'JMZ' corresponds to the tape-and-reel packaging variant rather than tube packaging. Confirm the exact output voltage combination matches the design requirement, as the datasheet indicates 2.8V/3.0V options. Check for end-of-life status or alternative recommendations from Renesas due to potential product discontinuation notices associated with this series.

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

Select this component when dual isolated rails are needed from a single source with strict noise requirements. Ensure the load capacitance remains within the 1µF to 10µF range with ESR up to 200mΩ for stability. Consider the thermal dissipation capabilities of the 10-DFN package under maximum load conditions and ambient temperature constraints.

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

This part belongs to the ISL78302A family of dual LDOs designed for automotive and industrial applications. It complements other PMIC solutions by providing dedicated, low-noise regulation for analog and digital subsystems. The device is AEC-Q100 rated, ensuring reliability in harsh environments where standard commercial regulators might fail.

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

Check for direct pin-compatible alternatives within the ISL78302A family that may offer different output voltage combinations or updated packaging statuses. Verify if newer generations from Renesas provide enhanced performance metrics while maintaining functional compatibility.