ISL78302AARGCZ-T7A

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

The ISL78302AARGCZ-T7A is a dual-channel automotive-grade low-dropout (LDO) linear regulator manufactured by Renesas Electronics. It features two independent positive fixed output channels with voltages of 1.8V and 2.7V, each capable of delivering up to 300mA. The device operates within an input voltage range of 2.5V to 6.5V and maintains a typical dropout voltage of 0.25V at full load. Key electrical specifications include a quiescent current of 36µA and power supply rejection ratios ranging from 90dB at 1kHz to 50dB at 100kHz. It is housed in a compact 10-DFN (3x3mm) package with an exposed pad.

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

• Dual-output configuration providing independent 1.8V and 2.7V rails for simultaneous power requirements
• Automotive qualification compliant with AEC-Q100 standards for high reliability
• Integrated protection mechanisms including overcurrent limiting and thermal shutdown
• Control features supporting system management via enable pins and power-on reset functions

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

• Powering sensor interfaces in automotive electronic control units
• Supplying logic levels for microcontroller peripherals
• Biasing RF components requiring low noise and high PSRR
• General purpose power regulation in automotive body electronics

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

Verify the complete part number including the -T7A suffix to ensure correct tape-and-reel packaging quantity. Confirm that the specific output voltage combination matches the design requirement, as other variants in the series may offer different fixed voltage pairs. Check for RoHS compliance status and ensure the supplier provides valid traceability documentation required for automotive assembly processes.

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

Select this component when dual isolated LDO outputs are needed in a small footprint for automotive applications. Ensure the total load current does not exceed 300mA per channel. Verify that the input voltage remains within the specified maximum limit of 6.5V. Consider the thermal performance of the 10-DFN package based on the expected power dissipation and ambient operating temperature conditions.

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

This device belongs to the ISL78302A family of low-noise, high-PSRR LDO regulators designed specifically for automotive environments. The family offers various output voltage combinations and packaging options to suit different board space constraints. It is engineered to meet the stringent reliability and noise immunity requirements of modern vehicle electronics systems.

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

Direct pin-to-pin replacements within the same family include ISL78302AARGCZ (tray packaging) or variants with different fixed output voltages such as ISL78302AARGCZ-T7A if voltage compatibility allows. Cross-family substitution requires careful verification of pinout, thermal characteristics, and electrical parameters.