ISL9007IUKZ

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

The ISL9007IUKZ is a high-performance low-dropout (LDO) voltage regulator manufactured by Renesas under the Intersil brand. It delivers a continuous output current of 400mA with a typical dropout voltage of 200mV at full load. The device features a wide input voltage range from 2.3V to 6.5V and offers fixed output options including 3.3V, 2.85V, 2.8V, and 2.5V. It maintains ±1.8% output voltage accuracy across temperature, line, and load variations. Key electrical characteristics include a power supply rejection ratio (PSRR) of 75dB at 1kHz and an output noise level below 30µVRMS. The regulator operates within a temperature range of -40°C to +85°C.

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

• High performance LDO delivering 400mA continuous output current with excellent transient response
• Very high PSRR of 75dB at 1kHz combined with low output noise for clean power delivery
• Low quiescent current of 50µA typical with 1µA maximum shutdown current for battery efficiency
• Stable operation with ceramic capacitors ranging from 1µF to 10µF with ESR up to 200mΩ

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 Renesas or Intersil distributors. Confirm RoHS compliance and Pb-free status as specified in official datasheets. Check manufacturing date codes against lifecycle notices to ensure availability, as older Intersil parts may face obsolescence risks. Validate package integrity for the 8-lead MSOP form factor upon receipt.

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

Select this LDO when low noise and high PSRR are critical for sensitive analog circuits. The 400mA current capability suits moderate load applications requiring stable regulation from varying input sources. Ensure output capacitance remains within the 1µF to 10µF range to maintain stability. Consider the fixed voltage options if adjustable regulation is not required, simplifying external component count.

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

The ISL9007 series belongs to Renesas' portfolio of low-power linear regulators designed for portable electronics. As part of the Intersil lineage now managed by Renesas, these devices emphasize low standby current and high rejection ratios. The IUKZ suffix denotes the specific 8-lead MSOP package variant, distinguishing it from other pinouts or thermal packages within the broader ISL9007 family.

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

Direct substitutes include other ISL9007 variants with different output voltages or packages, such as ISL9007IUNZ. Cross-referencing with Renesas' current PMIC portfolio is recommended for long-term supply chain stability, as legacy Intersil components may have limited future production support.