ISL9011AIRCJZ

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

The ISL9011AIRCJZ is a dual low-dropout (LDO) linear voltage regulator manufactured by Renesas/Intersil, designed for applications requiring low noise and high power supply rejection ratio (PSRR). It features an annealed process to minimize flicker noise. The device provides two fixed output voltages of 1.8 V and 2.8 V with a maximum output current of 150 mA per channel. It operates within an input voltage range of 2.3 V to 6.5 V and supports a junction temperature range from -40°C to +85°C. The regulator is housed in a compact 10-lead DFN (3x3 mm) package.

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

• Dual-channel architecture providing independent regulated outputs in a single compact package
• Annealed manufacturing process engineered to achieve ultra-low noise performance
• High power supply rejection ratio (PSRR) effective across a wide frequency spectrum
• Low dropout voltage capability ensuring efficient regulation under minimal headroom conditions

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

• Powering sensitive analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
• Supplying clean power rails for RF front-end modules and wireless communication circuits
• Biasing low-noise amplifiers (LNAs) in portable electronic devices
• Providing stable reference voltages for precision measurement instrumentation

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

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact output voltage combinations and tolerance levels. Confirm that the procurement source provides genuine components with traceable lot codes, as this part may be subject to end-of-life or limited availability status depending on the production batch date.

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

Select this component when system design requires simultaneous generation of two distinct low-voltage rails with stringent noise specifications. Ensure the input voltage remains above the minimum threshold while accounting for the maximum dropout voltage at the expected load current. Verify that the thermal dissipation capabilities of the DFN-10 package are sufficient for the intended operating environment and duty cycle.

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

This device belongs to the ISL9011A family of dual LDO regulators, which are optimized for portable battery-powered equipment. The series is characterized by its focus on minimizing electromagnetic interference through reduced output noise. It serves as a critical power management integrated circuit (PMIC) solution for maintaining signal integrity in mixed-signal systems where power supply ripple could degrade performance.

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

Consult the manufacturer's cross-reference guide for verified pin-compatible alternatives. Ensure any substitute maintains the same dual-output configuration, low-noise annealed process characteristics, and DFN-10 footprint to avoid redesigning the PCB layout.