ISL9000AIRFJZ

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

The ISL9000AIRFJZ is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It integrates two independent positive fixed-output LDOs within a single 10-lead VFDFN package measuring 3.00 x 3.00 mm with a maximum height of 0.88 mm. The device supports an input voltage range from 2.3 V to 6.5 V and provides fixed output voltages of 2.5 V and 2.8 V. Each channel delivers a continuous output current of 300 mA. Key electrical specifications include a maximum dropout voltage of 400 mV at 300 mA, a typical quiescent current of 42 µA when both LDOs are active, and a maximum supply current of 52 µA. The unit operates reliably across a temperature range of -40°C to +85°C.

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

• Integrates two high-performance 300mA LDO channels in a compact surface-mount package
• Features extremely low quiescent current for efficient power management
• Includes comprehensive protection mechanisms such as overcurrent, thermal shutdown, and undervoltage lockout
• Provides integrated control features including enable functionality and power-on reset

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

• Portable battery-powered electronic devices requiring multiple regulated voltage rails
• Embedded systems utilizing microcontrollers or digital signal processors
• Communication equipment needing stable power supplies with low noise characteristics
• Industrial control modules operating within extended temperature ranges

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

Verify the specific suffix code to confirm the exact output voltage combination, as the ISL9000 series offers various fixed voltage pairs. Confirm that the required package type matches the 10-VFDFN specification with a bare thermal pad. Ensure the design accounts for the specified maximum input voltage limit of 6.5 V to prevent device damage. Check for any recent product change notices regarding manufacturing updates or pin configuration changes.

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

Select this component when a dual-channel solution is required to save board space compared to using separate regulators. The low dropout voltage allows operation with minimal headroom between input and output voltages. Verify that the load capacitance falls within the stable range of 1µF to 10µF ceramic capacitors. Consider the thermal performance of the DFN package if the ambient temperature approaches the upper operational limit.

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

This part belongs to the ISL9000A family of dual low-dropout regulators designed for applications demanding high performance in small form factors. The series is characterized by its ability to maintain stability with small ceramic output capacitors while delivering significant current. It serves as a power management integrated circuit (PMIC) suitable for replacing discrete regulator solutions in modern compact electronics.

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

Direct replacements must match the dual-channel architecture and the 10-lead DFN footprint. Verify that substitute parts support the same 300mA per channel output current and the 2.3V to 6.5V input voltage range. Ensure compatibility with the 2.5V and 2.8V fixed output requirements.