ISL9011IRJCZ

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

The ISL9011IRJCZ is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It provides two fixed positive output voltages: Channel 1 outputs 2.8V at up to 150mA, and Channel 2 outputs 1.8V at up to 300mA. The device operates with an input voltage range of 2.3V to 6.5V and features a typical quiescent current of 45µA when both channels are active. It includes separate enable pins for each LDO, achieving shutdown currents below 0.1µA. The component utilizes a 10-lead 3mm x 3mm DFN package and supports ceramic capacitors from 1µF to 10µF.

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

• Integrates two high-performance LDOs with independent enable controls and soft-start functionality to limit input current surges.
• Delivers excellent power supply rejection ratio (PSRR) and low output noise, optimized for sensitive analog applications.
• Incorporates comprehensive protection mechanisms including thermal shutdown, overcurrent limiting, and undervoltage lockout.

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

• Powering portable instruments and MP3 players
• Supplying rails in smart phones and PDAs
• Providing regulated voltage for handheld medical devices

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

Verify the specific ordering suffix and manufacturer documentation before procurement. Confirm that the component meets RoHS compliance requirements and check for any product change notices or end-of-life announcements. Ensure the selected package variant matches the required PCB footprint and soldering profile specifications.

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

Select this component when a compact dual-output solution is required for battery-powered systems. Consider the specific output voltage combinations available within the series to match system rail requirements. Evaluate the need for external reference bypass capacitance on the CBYP pin to optimize noise performance and PSRR for the target application environment.

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

This part belongs to the ISL9011 series of dual LDO regulators designed for low noise and low standby current consumption. The series offers various fixed voltage combinations packaged in a tiny 10-lead DFN format. It serves as a pin-compatible alternative to other industry-standard dual LDOs, facilitating design upgrades for space-constrained portable electronics.

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

The datasheet explicitly states the device is pin compatible with the Micrel MIC2211. Verify electrical parameter compatibility and package dimensions before substituting.