ISL9011AIRBJZ

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

The ISL9011AIRBJZ is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It integrates two independent LDO channels within a single 10-lead, 3mm x 3mm DFN package. Channel 1 provides a fixed output voltage of 2.8V with a maximum continuous current capability of 150mA. Channel 2 delivers a fixed output voltage of 1.5V with a maximum continuous current capability of 300mA. The device operates from an input supply voltage range of 2.3V to 6.5V. Key electrical specifications include a typical quiescent current of 45µA when both channels are active and a shutdown current typically below 0.1µA. The unit features ±1.8% output voltage accuracy over the full operating temperature range of -40°C to +85°C.

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

• Integrates two high-performance LDOs with separate enable pins for individual channel control
• Features extremely low quiescent current consumption and ultra-low shutdown current
• Includes soft-start functionality to limit input current surge during power-up
• Provides comprehensive protection against overcurrent, overheating, and undervoltage lockout

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

• Portable instruments and handheld devices
• Cell phones and smart phones
• Medical handheld equipment
• MP3 players and personal digital assistants

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific manufacturing date codes relevant to your assembly timeline. Ensure proper ESD handling procedures are followed during storage and installation. Review the latest datasheet revision for any updates to pin configurations or electrical characteristics before finalizing design integration.

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

Select this component when designing portable electronics requiring two distinct regulated voltages from a single source. The 2.8V output suits logic circuits while the 1.5V output supports analog sections. Verify that the required load currents remain within the 150mA and 300mA limits for Channels 1 and 2 respectively. Ensure input voltage stays above the dropout threshold across all expected load conditions.

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

This part belongs to the ISL9011A series of dual LDO regulators designed for space-constrained applications. The series offers various fixed voltage combinations in a compact 10-lead DFN package. It is engineered for battery-powered systems where low standby current and high power supply rejection ratio are critical for extending operational life and maintaining signal integrity.

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 ISL9011AIRBJZ is difficult, provided the MIC2211 meets the specific voltage and current requirements of the application.