ISL9000AIRJCZ-T

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

The ISL9000AIRJCZ-T is a dual positive fixed linear low-dropout (LDO) voltage regulator manufactured by Renesas Electronics Corporation. It provides two independent output channels with fixed voltages of 1.8V and 2.8V, each capable of sourcing up to 300mA. The device operates within an input voltage range of 2.3V to 6.5V and features a maximum dropout voltage of 0.4V at full load. Key electrical specifications include a quiescent current of 32µA and a power supply rejection ratio (PSRR) ranging from 90dB to 50dB across frequencies of 1kHz to 100kHz. It is housed in a 10-DFN (3x3mm) package with exposed pad and supports an operating temperature range of -40°C to +85°C.

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

• Integrates individual Power-On-Reset (POR) functions for each output channel to ensure reliable system startup sequencing.
• Features externally programmable POR delay timing for the second output via an external capacitor connection.
• Maintains stability with output capacitance values between 1µF and 10µF, accommodating ESR up to 200mΩ.

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

• Power management in portable electronic devices requiring multiple stable voltage rails
• Biasing circuits in communication modules needing high PSRR performance
• Embedded systems utilizing microcontrollers or sensors with specific 1.8V and 2.8V logic requirements

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

Verify component authenticity through authorized distributors as this part is marked as obsolete. Confirm that the 10-DFN footprint matches your PCB design constraints. Check RoHS compliance status if required for specific regulatory environments. Ensure adequate thermal management is planned given the small package size and potential power dissipation at maximum load conditions.

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

Select this component when dual isolated LDO outputs are needed in a compact form factor. It is suitable for applications prioritizing low noise and high line regulation over high current capacity. Consider the fixed output voltages against your system requirements before finalizing the design. Evaluate the need for integrated reset functions to simplify external circuitry.

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

This device belongs to the ISL9000A series of high-performance dual LDO regulators. It shares architectural similarities with other members like the ISL9001A but differs in output configuration and current capabilities. The series is designed for applications demanding low standby current and excellent power supply rejection ratios in space-constrained environments.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. As the product is discontinued, alternative solutions must be evaluated based on pin compatibility, electrical specifications, and package dimensions without guaranteed direct replacement status.