ISL9003IECZ-T

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

The ISL9003IECZ-T is a single-output fixed linear regulator from the Intersil ISL9003A series, housed in a SC-70-5 surface-mount package. It provides a fixed output voltage of 2.5V with a maximum continuous load current of 150mA. The device operates within an input voltage range of 2.3V to 6.5V and features a maximum dropout voltage of 0.4V at full load. Key electrical specifications include a quiescent current of 40µA and a maximum supply current of 57µA. It includes integrated protection against overcurrent, thermal overload, and undervoltage lockout, alongside a soft-start feature.

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

• High performance low noise LDO with high power supply rejection ratio
• Extremely low quiescent current for extended battery life
• Integrated shutdown pin for ultra-low standby current consumption
• 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

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

Verify the specific suffix 'ECZ' against official Renesas or Intersil documentation to confirm package type and tape-and-reel configuration. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status and lead times before finalizing procurement plans.

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

Select this component when a compact solution is required for low-noise analog circuits powered by lithium-ion cells. The fixed 2.5V output suits digital core supplies or reference voltages. Consider the 150mA limit for load requirements and verify that the input voltage remains above the minimum threshold during discharge cycles to maintain regulation.

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

This part belongs to the ISL9003A family of low-dropout regulators designed for portable electronics. The series emphasizes low noise and high PSRR to protect sensitive RF and baseband components. Manufactured originally by Intersil and now under Renesas Electronics, these regulators are optimized for space-constrained mobile applications requiring efficient power management.

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

Check for direct substitutes such as ISL9003AIEMZ-T or ISL9003AIRBBZ-T if package compatibility allows. Verify that alternative parts match the 2.5V output and 150mA current rating. Ensure replacement components support the same SC-70-5 footprint and meet identical electrical specifications for noise and dropout voltage.