ISL9011IRJRZ

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

The ISL9011IRJRZ is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation, housed in a 10-lead 3mm x 3mm DFN package. It provides two independent regulated outputs: Channel 1 delivers up to 150mA at 2.8V, while Channel 2 supplies up to 300mA at 2.6V. The device operates within 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 ±1.8% output accuracy, high power supply rejection ratio (70dB at 1kHz), and low output noise (30µV RMS). Integrated protections include thermal shutdown, current limiting, and soft-start functionality.

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 and high PSRR for sensitive applications
• Includes integrated 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 MP3 players
• Medical handheld devices
• Cell phones and smart phones

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

Verify the specific ordering suffix 'JRZ' corresponds to the required 2.8V/2.6V output combination before procurement. Confirm that the manufacturer's RoHS-compliant Pb-free termination finish meets your assembly process requirements. Ensure the 10-lead DFN footprint matches your PCB design guidelines. Check for any recent product change notices or end-of-life announcements from the manufacturer.

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

Select this component when a compact dual-output solution is needed for portable electronics requiring distinct voltage rails. The 2.8V and 2.6V outputs suit logic levels and analog circuits respectively. Consider the 1µF to 10µF ceramic capacitor stability requirement. Evaluate if the 150mA and 300mA current capabilities align with your system's peak load demands.

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, low-power applications. The series offers various fixed output voltage combinations in a tiny DFN package. It is pin-compatible with other similar dual LDOs, facilitating design upgrades. The device is optimized for battery-powered systems where efficiency and size are critical constraints.

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

The datasheet explicitly states the device is pin compatible with the Micrel MIC2211. Verify that the replacement part supports the same 2.8V and 2.6V output voltages and meets the 150mA/300mA current specifications.