ISL9012IRKKZ-T

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

The ISL9012IRKKZ-T is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation, housed in a 10-lead 3x3mm DFN package. It provides two fixed positive output voltages: VO1 at 2.5V with a maximum current of 150mA, and VO2 at 2.0V with a maximum current of 300mA. The device operates within an input voltage range of 2.3V to 6.5V and features a typical quiescent current of 45µA when both LDOs are active. It includes integrated Power-On Reset (POR) functionality for the VO2 channel, adjustable via an external capacitor on the CPOR pin.

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

• Integrates two high-performance LDO channels with independent enable pins for individual power control.
• Features a programmable Power-On Reset (POR) signal generation circuit for the VO2 output.
• Includes soft-start capability to limit input current surges during device activation.
• Provides comprehensive protection against overcurrent conditions and thermal overload.

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

• Portable instruments
• MP3 players
• Medical handheld devices

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

Verify the specific suffix 'KKZ' against official documentation to confirm the exact output voltage combination and package variant. Confirm RoHS compliance status and check for any Product Change Notifications (PCN) regarding manufacturing updates or end-of-life notices before finalizing procurement plans.

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

Select this component for applications requiring simultaneous stable supply rails with distinct current capabilities. Ensure the load capacitance remains between 1µF and 10µF to maintain stability. Verify that the required output voltages match the factory-trimmed options available for the ISL9012 series.

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

This part belongs to the ISL9012 series of dual LDO regulators designed for low noise and high power supply rejection ratio (PSRR) performance. It is pin-compatible with certain Micrel MIC2212 variants. The device utilizes a 10-lead DFN package suitable for space-constrained portable electronics.

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

Official datasheet recommendations for obsolete ISL9012 variants include the ISL9000AIRNJZ, ISL9000AIRNFZ, ISL9000AIRMGZ-T, ISL9000AIRJBZ-T, and ISL9000AIRJNZ-T.

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

How is the Power-On Reset delay time determined?

The POR delay time is externally programmed by connecting a timing capacitor to the CPOR pin. For a 0.01µF capacitor, the entry delay is typically 200ms.

What is the recommended output capacitance range?

The device is stable with output capacitance values ranging from 1µF to 10µF, provided the equivalent series resistance (ESR) is less than 200mΩ.