ISL9014IRPLZ-T

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

The ISL9014IRPLZ-T is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation, housed in a 10-lead 3mm x 3mm Dual Flat No-Lead (DFN) package. It provides two independent positive fixed voltage outputs: VO1 at 1.85V and VO2 at 2.9V. The device supports a continuous output current of 300mA per channel with an input voltage range of 2.3V to 6.5V. Key electrical characteristics include a typical quiescent current of 45µA when both LDOs are active, a shutdown current below 0.1µA, and a regulation accuracy of ±1.8%. It features high power supply rejection ratio (PSRR) of 70dB at 1kHz and operates within a temperature range of -40°C to +85°C.

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

• Integrates two independent high-performance LDO channels capable of sourcing up to 300mA each.
• Features extremely low quiescent current consumption and ultra-low shutdown current for battery-powered applications.
• Includes separate enable pins for individual control of each LDO output with integrated soft-start functionality.
• Provides comprehensive protection mechanisms including thermal shutdown, over-current limiting, and undervoltage lockout.

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

• Portable instruments and handheld devices
• Cell phones and smart phones
• Medical handheld devices

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

Verify component authenticity through authorized distributors or direct manufacturer channels due to the availability of counterfeits. Confirm that the specific ordering suffix matches the required voltage combination and packaging format. Ensure compliance with RoHS standards and check for any relevant environmental certifications prior to procurement.

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

Select this component for designs requiring dual isolated rails from a single input source with minimal standby power drain. Evaluate the need for external reference bypass capacitors on the CBYP pin to optimize noise performance and PSRR according to specific application requirements. Consider the thermal dissipation capabilities of the DFN package under maximum load conditions.

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

This part belongs to the ISL9014 family of dual LDO regulators designed for portable electronics. It serves as a legacy solution superseded by the ISL9014A series, which offers enhanced performance metrics. The device utilizes a trimmed bandgap reference and PMOS pass transistors to achieve stable regulation across varying load and line conditions.

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

The datasheet explicitly recommends the ISL9014A as the replacement part for new designs. Verify pin compatibility and updated electrical specifications before transitioning to the newer generation component.

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

How does the ISL9014 handle simultaneous enable signals for both LDOs?

When both EN1 and EN2 are asserted simultaneously, the VO1 output has priority and powers up first. The device delays the turn-on of VO2 until the VO1 output reaches its target level to minimize input current surges.

What is the recommended output capacitance range for stability?

The device is stable with output capacitance ranging from 1µF to 10µF ceramic capacitors, provided the equivalent series resistance (ESR) is less than 200mΩ. A 1µF capacitor is recommended for optimal performance.