ISL9003IENZ-T

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

The ISL9003IENZ-T is a low-dropout linear voltage regulator manufactured by Intersil, now part of Renesas Electronics. It provides a fixed 3.3V output with a maximum load current of 150mA. The device features an SC-70-5 surface-mount package. It operates within an input voltage range and supports a junction temperature range from -40°C to +85°C. The regulator ensures stable power delivery for sensitive analog and digital circuits requiring low noise and high power supply rejection.

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

• Fixed 3.3V output voltage for precise power rail generation
• Low noise architecture suitable for RF and audio applications
• High Power Supply Rejection Ratio (PSRR) for clean power
• Compact SC-70-5 surface-mount package for space-constrained designs

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

• Portable consumer electronics requiring stable 3.3V logic levels
• RF modules and wireless communication devices needing low-noise power
• Embedded systems with strict power consumption constraints
• Audio equipment requiring clean analog power supplies

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

Verify component authenticity through authorized Renesas or Intersil distributors due to potential counterfeit risks in the aftermarket. Confirm RoHS compliance status and lot traceability before integration. Check for recent Product Lifecycle Notices (PLC) as legacy Intersil parts may have limited long-term availability or obsolescence warnings. Ensure packaging specifications match your automated assembly requirements.

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

Select this component when a fixed 3.3V output at 150mA is required with minimal footprint. Compare dropout voltage and PSRR against system noise sensitivity requirements. Consider thermal performance in enclosed enclosures. Verify input voltage headroom relative to source supply. Evaluate alternative packages if SC-70-5 is unavailable or unsuitable for mechanical stress.

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

The ISL9003 series belongs to Intersil's portfolio of low-noise LDO regulators, acquired by Renesas Electronics. These components are designed for applications demanding high PSRR and low quiescent current. The IENZ suffix denotes the specific pinout and package type (SC-70-5). This family targets portable and industrial applications where power efficiency and signal integrity are critical.

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

Check Renesas official cross-reference guides for direct replacements. Potential substitutes include other Intersil/Renesas LDOs with similar 3.3V/150mA specs and SC-70-5 packaging. Verify pin compatibility and electrical parameters before substitution.