ISL9003AIEFZ-T

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

The ISL9003AIEFZ-T is a fixed-output linear voltage regulator manufactured by Intersil, now part of Renesas Electronics. It provides a fixed output voltage of 2.5V with a maximum continuous output current of 150mA. The device features a low quiescent current of 40 µA and supports an input voltage range up to 6.5V. It incorporates comprehensive protection mechanisms including overcurrent, thermal shutdown, soft-start, and undervoltage lockout (UVLO). The component is housed in a compact SC-70-5 surface-mount package and operates within a temperature range of -40°C to +85°C.

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

• Fixed 2.5V output configuration for stable power supply applications
• Integrated protection functions including overcurrent, thermal shutdown, and UVLO
• Low quiescent current consumption for energy-efficient operation
• Compact SC-70-5 surface-mount packaging for space-constrained designs

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

• Portable electronic devices requiring low-power regulation
• Battery-powered systems needing efficient voltage conversion
• Embedded circuits utilizing fixed voltage rails
• Consumer electronics with space-limited PCB layouts

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

Verify the manufacturer designation as Intersil or Renesas Electronics Corporation on official documentation. Confirm the specific output voltage of 2.5V and the SC-70-5 package type match project requirements. Check for RoHS compliance status and ensure the operating temperature range meets environmental specifications. Validate that the part number suffix corresponds to the correct tape-and-reel or bulk packaging format if applicable.

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

Select this component when a fixed 2.5V rail is required with minimal external components. Ensure the input voltage does not exceed 6.5V and load currents remain within the 150mA limit. Consider the thermal performance given the small SC-70-5 package size under full load conditions. Verify compatibility with system startup sequences due to the integrated soft-start feature.

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

This component belongs to the ISL9003 series of low-dropout linear regulators designed for portable applications. The series offers various fixed output voltages and packages, providing designers with flexible options for power management. As an Intersil product acquired by Renesas, it maintains legacy support while integrating into modern supply chains.

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

Cross-reference with other ISL9003 variants such as ISL9003AIRUFZ-T for identical electrical specifications but different packaging. Verify pinout compatibility before substitution. Ensure replacement parts maintain the same output voltage and current capabilities.