ISL9008AIEJZ-T

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

The ISL9008AIEJZ-T is a fixed-output low-noise Low Dropout (LDO) voltage regulator manufactured by Intersil, now part of Renesas. It provides a fixed 2.8V output 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 typical dropout voltage of 250mV at full load. Key electrical characteristics include a quiescent current of 46µA, high Power Supply Rejection Ratio (PSRR) of 65dB at 1kHz, and low output noise of typically 45µVRMS. It offers ±1.8% accuracy over operating conditions and includes thermal and current limit protection.

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

• Delivers high-performance regulation with excellent transient response to large current steps
• Maintains stability when used with small ceramic capacitors ranging from 1µF to 4.7µF
• Integrates shutdown functionality that reduces standby current to a maximum of 1µA
• Includes built-in soft-start, current limiting, and overheat protection mechanisms

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

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

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

Verify the specific suffix 'EJ' confirms the 2.8V fixed output variant. Confirm package type matches SC-70-5 or µTDFN-6 requirements. Check RoHS compliance status and lead-free specifications against current manufacturing standards. Ensure ESD handling protocols are followed during assembly due to sensitive internal circuitry.

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

Select this component for applications requiring low noise power supplies for sensitive analog circuits. The 2.8V output suits systems needing precise voltage rails without external adjustment. Consider the 150mA current limit for moderate load demands. Evaluate capacitor selection to ensure stability within the specified 1µF to 4.7µF range.

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

This part belongs to the ISL9008A series of low-noise LDO regulators. The family shares common architectural features including low IQ and high PSRR. Variants differ primarily in fixed output voltage settings and package options. The series targets portable electronics where battery life and signal integrity are critical design constraints.

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

Compatible substitutes include other ISL9008A variants with different fixed voltages if system requirements change. Verify pin compatibility for direct replacement in existing footprints. Cross-reference with Renesas portfolio for newer generations with enhanced performance metrics.