ISL78302ARNWZ-T7A

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

The ISL78302ARNWZ-T7A is a dual-output low dropout (LDO) linear voltage regulator from Renesas Electronics, designed for automotive applications. It provides fixed output voltages of 1.2 V and 3.3 V with a maximum output current of 300 mA per channel. The device operates within an input voltage range of 2.3 V to 6.5 V and features a typical power supply rejection ratio (PSRR) of 64 dB. Quiescent current is specified at 47 µA, with a drop-out voltage of 300 mV. It is housed in a 10-DFN (3x3 mm) package and supports an operating temperature range from -40°C to +105°C.

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

• Dual-channel architecture delivering independent regulated outputs
• High power supply rejection ratio for noise-sensitive circuits
• Automotive-grade reliability with AEC-Q100 qualification
• Low quiescent current consumption for energy efficiency

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

• Automotive infotainment systems
• Sensor power management modules
• Telematics control units
• Body control electronics

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

Verify the specific suffix 'T7A' indicates tape-and-reel packaging distinct from tube variants. Confirm the output voltage combination matches the 'ARNWZ' designation (1.2V/3.3V). Check for end-of-life notices as some ISL78302 variants are discontinued. Ensure RoHS compliance documentation aligns with current manufacturing sites.

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

Select this component when dual isolated rails are required from a single input source. The high PSRR makes it suitable for RF or audio sections sensitive to supply noise. Verify that the 300mA per channel rating meets peak load demands. Consider the 10-DFN footprint for PCB layout constraints compared to larger packages.

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

Part of the ISL78302 family of high-performance dual LDOs. Similar models include ISL78302ARBNZ and ISL78302ARCWZ-T7A, which may offer different output voltage combinations or packaging options. All share the same core regulatory architecture and thermal characteristics.

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

ISL78302ARNBZ-T7A offers equivalent functionality with potentially different output voltages. Cross-reference pinouts and thermal pads before substitution. Verify if alternative suppliers have adopted the Renesas part number after the Intersil acquisition.