ISL9011IRPLZ-T

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

The ISL9011IRPLZ-T is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation, housed in a 10-lead 3mm x 3mm Dual Flat No-Lead (DFN) package. It provides two independent fixed output voltages: Channel 1 delivers 1.85V at up to 150mA, and Channel 2 delivers 2.9V at up to 300mA. The device operates with an input voltage range of 2.3V to 6.5V and maintains a typical quiescent current of 45µA when both channels are active. It features high power supply rejection ratio performance, achieving 70dB at 1kHz, and includes integrated soft-start, thermal shutdown, and overcurrent protection mechanisms.

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

• Integrates two independent LDOs with separate enable pins for individual channel control
• Features extremely low quiescent current consumption during active operation
• Includes built-in soft-start circuitry to limit input current surge during startup
• Provides comprehensive protection against overcurrent conditions and overheating

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

• Portable instruments and handheld devices
• Smart phones and cellular phones
• Medical handheld equipment

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

Verify the specific ordering suffix to confirm the tape and reel packaging configuration required for automated assembly processes. Confirm that the manufacturer has not issued a product change notification affecting the pinout or electrical characteristics. Ensure the component meets RoHS compliance standards for your target market regulations before finalizing procurement plans.

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

Select this component when designing circuits requiring two distinct regulated voltage rails from a single source within a compact footprint. The device is suitable for applications demanding low noise and high power supply rejection. Verify that the required output capacitance falls between 1µF and 10µF to ensure stability. Check that the maximum load currents do not exceed the specified limits for each respective channel.

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

This part belongs to the ISL9011 series of dual LDO regulators designed for portable electronics. The series offers various fixed voltage combinations to suit different system requirements. The IRPLZ variant specifically targets designs needing a 1.85V rail for logic and a higher 2.9V rail for peripheral components, all within a thermally efficient DFN package.

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

The datasheet explicitly states the device is pin compatible with the Micrel MIC2211. Designers may consider this alternative if sourcing the ISL9011 series is difficult, provided the MIC2211 specifications meet the application's electrical requirements.