ISL9014IRFJZ-T

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

The ISL9014IRFJZ-T is a dual-output fixed positive linear regulator manufactured by Renesas Electronics Corporation. It provides two independent LDO channels with output voltages of 2.5V and 2.8V, each capable of sourcing up to 300mA. The device operates within an input voltage range of 2.3V to 6.5V and features a typical quiescent current of 45µA when both outputs are active. It utilizes a 10-lead 3mm x 3mm DFN package and supports operation from -40°C to +85°C.

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

• Integrates two high-performance low-dropout regulators with separate enable pins for individual control.
• Features extremely low quiescent current consumption and integrated soft-start circuitry to limit input current surges during activation.
• Includes comprehensive protection mechanisms such as thermal shutdown, overheat detection, and internal current limiting.

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

• Portable instruments and MP3 players
• Smart phones and handheld devices
• Medical handheld equipment

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

Verify the component status before procurement planning. Official documentation indicates this specific part number has reached End-of-Life (EOL) or Obsolescence status. Confirm availability through authorized distributors or secondary markets, and ensure compliance with RoHS standards and moisture sensitivity levels specified in the datasheet.

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

Select this component for designs requiring dual isolated power rails from a single supply source. Ensure the application load does not exceed the 300mA continuous rating per channel. Verify that the required output capacitance falls between 1µF and 10µF to maintain stability. Consider the pin-compatible ISL9014A series if new design implementation is required due to obsolescence.

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

This device belongs to the ISL9014 family of dual LDOs designed for portable electronics. It was originally developed by Intersil Corporation, which was subsequently acquired by Renesas Electronics. The product line focuses on providing low noise and high power supply rejection ratio (PSRR) performance for sensitive analog circuits in mobile applications.

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

The datasheet explicitly recommends the ISL9014A series as the replacement part. Engineers should verify pin compatibility and electrical parameter alignment when transitioning to the newer generation components.

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

How does the device manage startup sequences when both enable pins are asserted?

When both EN1 and EN2 are brought high simultaneously, the VO1 output has priority and powers up first. If one pin is asserted before the other stabilizes, the device delays the second turn-on until the first output reaches its target level.

What is the function of the CBYP pin?

The CBYP pin serves as the reference bypass capacitor connection. Connecting a capacitor here allows users to tune the noise filter for improved low-noise and high PSRR performance in sensitive applications.