ISL9111EH50Z-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9111EH50Z-T is a synchronous boost switching regulator IC manufactured by Renesas Electronics Corporation. It provides a fixed positive output voltage of 5V with a switch current capability of 800mA. The device operates within an input voltage range of 600mV to 3.1V and supports a single output configuration. It utilizes a SOT-23-6 surface-mount package and functions at a switching frequency of 1.2MHz. The component is rated for operation between -20°C and +85°C, featuring a typical start-up voltage of 0.8V and a maximum output voltage capability of 5.25V.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous boost converter topology designed for high efficiency in low input voltage applications
• Capable of powering single-cell, dual-cell, or three-cell alkaline, NiCd, or NiMH battery systems
• Integrated protection features including thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Single-cell lithium-ion battery powered devices requiring step-up conversion
• Portable consumer electronics utilizing alkaline or NiMH battery packs
• Low voltage sensor interfaces needing stable 5V supply from lower source voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm RoHS compliance status through official Renesas documentation prior to integration. Ensure the SOT-23-6 footprint matches your PCB layout requirements. Check for end-of-life notices as this part may be discontinued or superseded by newer revisions in the ISL9111 family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from inputs as low as 600mV. The 800mA switch current suits moderate load applications. Consider the 1.2MHz switching frequency for balancing component size and efficiency. Verify that the SOT-23-6 package fits your spatial constraints. Compare against ISL9111A variants if different pinouts or enhanced features are needed.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL9111 series of low input voltage synchronous boost converters. It is designed to replace linear regulators in battery-powered systems where efficiency is critical. The series supports various output voltages via external resistor networks, though this specific model offers a fixed 5V option. It integrates the high-side and low-side switches internally.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for ISL9111EH50Z-T7A which shares identical electrical specifications but differs in packaging format. Review datasheets for any functional differences between Intersil and Renesas branded versions of the same part number.