ISL78302ARBFZ-T

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

The ISL78302ARBFZ-T is an automotive-grade dual low-dropout (LDO) voltage regulator manufactured by Renesas Electronics. It features two independent positive fixed outputs, each capable of sourcing up to 300mA. The device operates within an input voltage range of 2.3V to 6.5V and delivers a typical power supply rejection ratio (PSRR) of 90dB. Key electrical parameters include a maximum dropout voltage of 230mV at full load, a quiescent current of 47µA, and output voltage accuracy of 0.8%. It is housed in a 10-lead DFN package rated for operation between -40°C and +105°C.

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

• Dual-channel architecture providing independent regulated outputs for separate circuit rails
• High power supply rejection ratio (PSRR) ensuring stable performance against input noise
• Automotive qualification compliant with AEC-Q100 standards for reliability
• Integrated protection mechanisms including overcurrent and thermal shutdown

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

• Powering sensors in automotive body control modules
• Supplying logic circuits in automotive microcontrollers
• Biasing actuators in vehicle safety systems
• Regulating voltage in infotainment system components

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

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration as distinct from tray options. Confirm that the component meets AEC-Q100 grade requirements for your target automotive application environment. Check manufacturer notices regarding end-of-life status or production changes, as availability may be restricted. Ensure input capacitance values align with stability requirements specified in the official datasheet.

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

Select this component when dual isolated LDO rails are required within a single compact footprint. The high PSRR specification makes it suitable for noise-sensitive analog sections in mixed-signal automotive designs. Consider the 300mA per channel limit to ensure adequate headroom for peak load currents. Verify that the 2.3V minimum input voltage accommodates the lowest expected battery or rail voltage during operation.

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

This part belongs to the ISL78302A series of high-performance dual LDOs designed specifically for automotive environments. It complements other Renesas PMIC solutions by offering precise regulation without the complexity of switching converters. The series supports various fixed output voltages to accommodate different logic families and sensor requirements in modern vehicle electronics architectures.

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

Public confirmed substitute part numbers are not available in the provided documentation. Consult Renesas Electronics directly for cross-reference recommendations if this specific reel-packaged variant is unavailable.