ISL78302AARJMZ-T

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

The ISL78302AARJMZ-T is an automotive-grade dual low-dropout (LDO) voltage regulator manufactured by Renesas Electronics. It provides two independent fixed output voltages of 2.8V and 3.0V, each capable of sourcing up to 300mA. The device operates within a wide input voltage range of 2.3V to 6.5V and features a typical quiescent current of 47µA with both LDOs active. It offers high power supply rejection ratio (PSRR) of 90dB at 1kHz and low output noise. Packaged in a 10-lead DFN (3x3mm) format, it supports operation from -40°C to +105°C.

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

• Integrates two high-performance LDOs with individual enable pins and power-on-reset functions for precise control.
• Delivers very high PSRR and low output noise, suitable for sensitive RF and analog circuits.
• Features extremely low standby current and shutdown mode consumption for efficient power management.
• Includes internal protection against overcurrent and thermal overload.

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

• Automotive infotainment systems requiring clean power rails.
• Sensor modules in advanced driver-assistance systems (ADAS).
• RF transceivers needing low-noise voltage regulation.
• Body control modules (BCM) with strict power efficiency requirements.

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

Verify the specific suffix 'JMZ-T' confirms the 2.8V/3.0V output configuration and tape-and-reel packaging. Confirm AEC-Q100 qualification status if automotive reliability is required. Check for end-of-life notices as Intersil products may have limited availability or obsolescence risks. Ensure ESD handling protocols are followed due to moisture sensitivity classification.

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

Select this component when dual isolated rails are needed from a single input source in space-constrained automotive designs. Compare dropout voltage specifications against load requirements to ensure regulation stability. Consider the 10-DFN package thermal performance for high ambient temperature environments. Verify that the external capacitor requirements for stability match the design constraints.

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

This part belongs to the ISL78302A family of dual LDO regulators designed for automotive applications. It complements other Renesas PMIC solutions by providing discrete, high-performance linear regulation where switching noise must be avoided. The series is characterized by its ability to drive significant loads while maintaining low noise profiles essential for mixed-signal automotive electronics.

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

Direct substitutes include other parts from the ISL78302A family with different output voltage combinations, such as ISL78302AARMMZ-T (3.0V/3.0V) or ISL78302AARJRZ (2.6V/2.8V). Cross-reference pinouts and electrical characteristics carefully before substitution.