ISL9012IRFJZ-T

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

The ISL9012IRFJZ-T is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It provides two independent regulated outputs: Channel 1 (VO1) delivers up to 150mA, and Channel 2 (VO2) delivers up to 300mA. The device operates with an input voltage range of 2.3V to 6.5V. Key electrical specifications include a typical quiescent current of 45µA when both LDOs are active, a shutdown current of less than 0.1µA, and a maximum dropout voltage of 200mV at 150mA for VO1. The output voltage accuracy is ±1.8% across 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 with separate enable pins for individual control.
• Features a programmable Power-On-Reset (POR) function for the VO2 output via an external timing capacitor.
• Includes soft-start circuitry to limit input current surge during enable and overheat protection.
• Stable with ceramic output capacitors ranging from 1µF to 10µF.

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 output voltage configuration for the IRFJZ suffix against the manufacturer's ordering guide, as standard listings may vary. Confirm package availability and lead times directly with authorized distributors or the manufacturer, as supply status can change. Ensure compatibility with RoHS standards and verify the tape and reel specifications if applicable.

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

Select this component for applications requiring dual isolated rails with low noise and high power supply rejection ratio (PSRR). Consider the 150mA/300mA current distribution and the 2.3V minimum input voltage constraint. The integrated POR feature simplifies system reset logic for the secondary rail. Verify thermal performance in the target enclosure given the 3x3mm DFN package.

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

The ISL9012 belongs to the ISL9012 series of dual LDO regulators designed for portable electronics. It is pin-compatible with certain Micrel devices. The family offers various fixed output voltage combinations within a compact 10-lead 3x3mm DFN package, targeting space-constrained mobile and handheld applications.

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

The datasheet recommends the ISL9000AIRNJZ, ISL9000AIRNFZ, ISL9000AIRMGZ-T, ISL9000AIRJBZ-T, and ISL9000AIRJNZ-T as replacements for other variants in the series. Verify functional equivalence and pin compatibility before substitution.