ISL8088IRZ-TK

Voltage Regulators - DC DC Switching Regulators Overview

The ISL8088IRZ-TK is a dual synchronous step-down DC/DC regulator manufactured by Renesas Electronics Corporation. It delivers up to 800mA continuous output current per channel with an input voltage range of 2.75V to 5.5V and adjustable output voltages from 600mV to 5.5V. Operating at a fixed switching frequency of 2.25MHz, the device features a 1ms Power Good signal for output monitoring during power-up. It is housed in a 10-DFN (3x3) package with an exposed pad and operates within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual synchronous buck topology providing independent regulation for two channels
• Integrated 1ms Power Good signal for reliable output monitoring during startup
• High-efficiency design optimized for compact power management applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring dual low-voltage rails
• Embedded systems with strict space constraints
• Battery-powered equipment needing efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'TK' indicates tape-and-reel packaging if required for automated assembly. Check for end-of-life status or obsolescence notices as availability may be limited. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated outputs are needed from a single input source within the 2.75V to 5.5V range. The 2.25MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 10-DFN package size for space-sensitive designs. Verify that the 800mA per channel current rating meets the load requirements of both downstream circuits without exceeding thermal limits.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL8088 belongs to the ISL8088 series of high-efficiency dual synchronous step-down regulators. This family is designed for applications requiring multiple regulated voltages from a single input rail. The device integrates internal power switches and control circuitry to minimize external component count. It represents a solution for compact power management in portable and embedded electronics where efficiency and size are critical factors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative dual-channel buck converters from Renesas or other manufacturers based on pin compatibility, electrical specifications, and package dimensions. Ensure any replacement maintains the required 800mA per channel output and 2.25MHz switching frequency characteristics.