ISL9014AIRKNZ

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

The ISL9014AIRKNZ is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It provides two fixed positive output voltages: VO1 at 2.85V and VO2 at 3.3V. Each channel supports a continuous maximum output current of 300mA. The device operates with an input voltage range from 2.3V to 6.5V and maintains a typical quiescent current of 45µA when both LDOs are active. It features a shutdown current typically less than 0.1µA, a dropout voltage of 200mV at 300mA for VO1, and ±1.8% regulation accuracy over the operating temperature range of -40°C to +85°C.

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

• Integrates two high-performance LDOs capable of sourcing 300mA each with excellent transient response and load regulation.
• Features extremely low quiescent current consumption and separate enable pins for individual power control.
• Includes integrated soft-start circuitry to limit input current surge during enable and protects against overcurrent and overheating.

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

• PDAs, Cell Phones and Smart Phones
• Portable Instruments and MP3 Players
• Handheld Devices including Medical Handhelds

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

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Confirm that the specific ordering suffix matches the required voltage combination of 2.85V and 3.3V. Ensure compliance with RoHS standards and check for any product change notifications regarding package or material updates before finalizing procurement plans.

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

Select this component when a compact dual-output solution is required for noise-sensitive portable applications. It is suitable for designs needing independent control of two power rails with minimal standby current. Verify that the application load requirements do not exceed the 300mA per channel limit and that the input voltage remains within the specified 2.3V to 6.5V operational range.

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

This device belongs to the ISL9014A family of dual LDO regulators designed for low noise and high power supply rejection ratio (PSRR) performance. It utilizes a tiny 10-lead 3mm x 3mm DFN package to minimize board space. The architecture includes a reference bypass pin for external capacitor tuning to optimize noise filtering for specific system requirements.

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

The datasheet explicitly states the device is pin compatible with the Micrel MIC2211. Engineers should verify if alternative Renesas ISL9014 variants with different voltage outputs meet the specific design needs if the exact 2.85V/3.3V combination is unavailable.

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

How does the ISL9014AIRKNZ manage startup sequences when both enable pins are asserted?

If both EN1 and EN2 are brought high simultaneously, the VO1 output has priority and powers up first. If one pin is asserted before the other stabilizes, the device delays the second turn-on until the first output reaches its target level.

What is the recommended output capacitance range for stability?

The device is stable with output capacitance ranging from 1µF to 10µF, provided the equivalent series resistance (ESR) is up to 200mΩ. A 1µF capacitor is recommended for optimal performance.