ISL9011IRBJZ-T

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

The ISL9011IRBJZ-T is a dual low-dropout linear regulator manufactured by Renesas Electronics Corporation. It integrates two independent LDO channels within a compact 10-lead 3mm x 3mm Dual Flat No-Lead (DFN) package. Channel 1 provides a fixed output voltage of 1.5V with a maximum continuous current capability of 150mA. Channel 2 delivers a fixed output voltage of 2.8V and supports up to 300mA of continuous load current. The device operates from an input supply voltage ranging between 2.3V and 6.5V, ensuring stable regulation across the specified range.

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

• Integrates two high-performance LDOs with separate enable pins for individual channel control
• Features extremely low quiescent current consumption and integrated soft-start circuitry
• Includes comprehensive protection mechanisms such as thermal shutdown and current limiting
• Designed for stability with ceramic capacitors having low equivalent series resistance

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

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

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status prior to integration. Ensure proper handling procedures are followed due to the surface-mount DFN package configuration. Validate that the specific ordering suffix matches the required tape and reel specifications for automated assembly processes.

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

Select this component when designing power systems requiring two distinct regulated voltages from a single source. The device is suitable for applications demanding low noise performance and high power supply rejection ratios. Consider the specific output voltage combinations available in the datasheet to ensure compatibility with target logic levels and peripheral requirements.

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

This part belongs to the ISL9011 family of dual LDO regulators originally developed by Intersil before its acquisition by Renesas Electronics. The family is characterized by high performance, low standby current, and excellent transient response capabilities. These regulators are widely utilized in portable electronics where space constraints and battery life are critical design parameters.

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

ISL9011AIRBLZ-T

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

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

When both EN1 and EN2 are asserted 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 on the ISL9011IRBJZ-T?

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.