ISL9001AIRJZ-T

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

The ISL9001AIRJZ-T is a single-output Low Dropout (LDO) linear regulator from the Intersil ISL9001A series, designed for low-power portable applications. It delivers a fixed 2.8V output with a maximum load current of 300mA. The device operates within an input voltage range of 2.3V to 6.5V and maintains high power supply rejection ratio (PSRR) of 90dB at 1kHz. Key electrical characteristics include an extremely low quiescent current of 25µA, typical dropout voltage of 200mV at full load, and low output noise of 30µVRMS. It features ±1.8% accuracy over operating conditions, integrated soft-start, current limit, and thermal protection, housed in a compact 2mm x 3mm 8-lead DFN package.

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

• Extremely low quiescent current consumption for extended battery life
• High power supply rejection ratio (PSRR) for clean power delivery
• Integrated programmable delayed Power-On-Reset (POR) function
• Stable operation with small ceramic output capacitors

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

• Portable instruments and handheld devices
• Cell phones and smart phones
• Medical handheld equipment
• MP3 players and personal digital assistants

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

Verify component authenticity through authorized Renesas or Intersil distributors. Confirm RoHS compliance and lead-free status via official datasheets. Check for recent Product Change Notifications (PCNs) regarding packaging or manufacturing site changes. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.

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

Select this part when a fixed 2.8V rail is required with minimal standby current draw. The 300mA capacity suits moderate load scenarios where efficiency is less critical than noise performance. Verify that the application input voltage remains within the 2.3V to 6.5V window. Consider the 2mm x 3mm DFN footprint for space-constrained PCB layouts.

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

The ISL9001AIRJZ-T belongs to the ISL9001A family of high-performance LDOs. This series shares architectural similarities with dual-output variants like the ISL9000A but provides a single regulated channel. It complements switching regulators by offering quiet, stable voltage rails for sensitive analog or RF circuits in mobile electronics.

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

Direct pin-compatible substitutes may include other ISL9001A variants with different output voltages or packages. Verify equivalent PSRR, quiescent current, and transient response specifications before substitution. Cross-reference with newer Renesas PMIC families if end-of-life status applies.