ISL9014AIRBLZ

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

The ISL9014AIRBLZ is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It provides two fixed positive output voltages: VO1 at 1.5V and VO2 at 2.9V. Each channel supports a continuous maximum output current of 300mA. The device operates with an input voltage range from 2.3V to 6.5V and maintains a typical quiescent current of 45µA when both LDOs are active. It features a shutdown mode drawing less than 0.1µA, ±1.8% regulation accuracy, and a dropout voltage typically of 200mV at 300mA load. The component is housed in a 10-lead 3mm x 3mm DFN package.

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

• Integrates two high-performance LDOs capable of sourcing 300mA each with excellent transient response
• Features extremely low quiescent current consumption and separate enable pins for individual control
• Includes soft-start functionality to limit input current surge during enable and protects against overheat conditions

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

• PDAs, Cell Phones and Smart Phones
• Portable Instruments and MP3 Players
• Handheld Devices including Medical Handhelds

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

Verify the specific ordering suffix to confirm the exact output voltage configuration, as the base model number covers multiple combinations. Confirm RoHS compliance status and check for any product change notices regarding lead or material updates. Ensure the procurement source is authorized to guarantee authenticity and traceability of the electronic components.

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

Select this component when a compact dual-output power solution is required for battery-operated portable electronics. Verify that the required output voltages match the available factory-trimmed options within the 1.5V to 3.3V range. Ensure the application can accommodate the recommended 1µF to 10µF ceramic output capacitors with ESR below 200mΩ for stability.

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

This part belongs to the ISL9014A series of dual LDO regulators designed for low noise and high power supply rejection ratio applications. The series utilizes a tiny 10-lead DFN package suitable for space-constrained designs. It is pin-compatible with certain competitor devices like the Micrel MIC2211, facilitating potential design-in transitions while maintaining low standby current characteristics.

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

ISL9014AIRBJZ

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

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

If 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 allows connection of an external capacitor to tune noise and PSRR performance. A 0.01µF capacitor implements a 100Hz lowpass filter, while larger values like 0.1µF reduce reference noise for sensitive applications.