ISL5120CBZ

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL5120CBZ is a synchronous buck DC-DC switching controller manufactured by Renesas Electronics Corporation. It operates with a fixed internal switching frequency of 300 kHz and supports a maximum duty cycle of 100%. The device requires a supply voltage (Vcc/Vdd) between 4.5 V and 5.5 V. It features an integrated bootstrap diode and provides phase control for multi-phase configurations. The component is housed in an 8-SOIC package with a width of 3.90 mm and is rated for an operating temperature range of 0°C to 70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Synchronous rectification capability for improved efficiency
• Integrated bootstrap diode simplifies external component count
• Phase control support enables scalable multi-phase designs

Analog Switches, Multiplexers, Demultiplexers Applications

• Point-of-load voltage regulation for digital processors
• General-purpose DC-DC conversion in industrial equipment
• Power supplies for communication infrastructure

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the obsolete status of this component before design finalization, as it may no longer be in active production. Confirm that the 8-SOIC package dimensions match the target PCB footprint. Ensure that the 300 kHz switching frequency aligns with the thermal and electromagnetic interference requirements of the specific application environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this controller when a fixed 300 kHz frequency and synchronous topology are required for single-phase applications. Verify that the input voltage range accommodates the system's supply rails and that the 0°C to 70°C operating temperature range meets the environmental constraints. Consider multi-phase variants if higher current output is necessary.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ISL65xx series of power management ICs from Renesas. It shares functional similarities with other controllers in the family but is distinct in its single-phase configuration and specific pinout. It serves as a legacy solution for older hardware designs requiring reliable buck conversion without complex programmability.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Renesas official resources for current alternatives or evaluate compatible devices from other manufacturers based on pin-to-pin compatibility and electrical specifications.