ISL85005FRZ

Voltage Regulators - DC DC Switching Regulators Overview

The ISL85005FRZ is a high-efficiency synchronous buck regulator from the Renesas ISL85005 series. It integrates 5A high-side and low-side FETs within a compact 12-lead DFN (3x4 mm) package. The device operates with an input voltage range of 4.5V to 18V and delivers a fixed output voltage between 4.3V and 5.5V. It supports a maximum output current of 5A with a switching frequency of 500 kHz. Quiescent current is specified at 6 µA, while static current reaches 3.2 mA. The component functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates 5A high-side and low-side FETs for compact power solutions
• Utilizes current mode control with an internal oscillator for stable regulation
• Features a SYNC pin for external clock synchronization capabilities
• Operates in forced continuous conduction mode (CCM) for consistent performance

Voltage Regulators - DC DC Switching Regulators Applications

• Load point regulators in embedded computing systems
• Power supplies for network and communication equipment
• Voltage regulation for multifunction printers
• General-purpose DC/DC conversion in industrial electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix FRZ corresponds to the tape and reel packaging configuration as indicated by distributor specifications. Confirm that the part number matches the exact electrical parameters required for the target application, particularly the fixed output voltage range and thermal requirements. Ensure compatibility with the intended PCB footprint for the 12-lead DFN package before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed output voltage near 5V is required alongside a wide input voltage range up to 18V. The integrated 5A capability and small form factor make it suitable for space-constrained designs. Consider the fixed CCM operation if diode emulation mode is not needed. Verify that the 500 kHz switching frequency aligns with the electromagnetic interference constraints of the system design.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL85005FRZ belongs to the ISL85005 family of synchronous buck regulators developed by Renesas Electronics Corporation. This series is designed to provide efficient power management for portable and battery-powered applications. The FRZ variant specifically denotes the surface-mount package configuration available for automated assembly processes within the broader product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL85005AFRZ is a documented compatible evaluation tool partner within the same series.