ISL9014AIRJRZ

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

The ISL9014AIRJRZ is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It provides two fixed positive output voltages: VO1 at 2.8V and VO2 at 2.6V. Each LDO channel supports a continuous maximum output current of 300mA. The device operates within an input voltage range of 2.3V to 6.5V and maintains a typical quiescent current of 45µA when both outputs are active. It features ±1.8% regulation accuracy, high power supply rejection ratio (70dB at 1kHz), and low output noise (typically 30µV RMS). The component is housed in a compact 10-lead 3mm x 3mm DFN package with exposed pad.

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

• Integrates two independent high-performance LDOs with separate enable pins for individual control
• Features extremely low quiescent current consumption and soft-start capability to limit input current surge during activation
• Includes comprehensive protection mechanisms such as current limiting, thermal shutdown, and undervoltage lockout

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 the specific ordering suffix 'RJRZ' against official manufacturer documentation to confirm the exact output voltage combination of 2.8V on VO1 and 2.6V on VO2. Ensure compatibility with the required 10-lead DFN footprint and check for any product change notices or end-of-life announcements prior to finalizing procurement plans.

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

Select this component when a dual-output solution is required from a single IC to save board space. It is suitable for applications demanding low noise and high PSRR, particularly when utilizing the reference bypass pin for additional filtering. Verify that the load capacitance requirements fall between 1µF and 10µF to ensure stability.

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

This part belongs to the ISL9014A series of dual LDO regulators designed for portable electronics. The series offers various fixed voltage combinations within a tiny 10-lead DFN package. It is pin-compatible with certain Micrel devices, facilitating potential design-in alternatives while maintaining the same physical footprint and basic functionality.

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

ISL9014AIRJNZ

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

How does the ISL9014AIRJRZ handle simultaneous enable signals?

When both EN1 and EN2 are asserted simultaneously, the VO1 output has priority and powers up first. The device delays the turn-on of VO2 until the VO1 output reaches its target level.

What is the recommended capacitor value for the CBYP pin?

A 0.01µF capacitor is recommended for most high-performance applications. For lowest noise applications, a 0.1µF or greater capacitor should be used to filter reference noise below the 10Hz to 1kHz band.