ISL85005AFRZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL85005AFRZ-T is a monolithic synchronous buck regulator from the Renesas ISL85005 series, integrating high-side and low-side FETs for 5A output current. It operates with an input voltage range of 4.5V to 18V and supports a fixed 5V output. The device utilizes current-mode control with an internal oscillator operating at a switching frequency of 500 kHz. It features a small 12-lead DFN (3x4 mm) package and 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 in a compact form factor
• Supports wide input voltage ranges for multi-cell battery applications
• Operates in forced continuous conduction mode for stable performance

Voltage Regulators - DC DC Switching Regulators Applications

• Network and communication equipment power supplies
• Load point regulators for embedded computing systems
• Power management for multifunction printers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm tape-and-reel packaging quantities and exact electrical tolerances. Ensure compatibility with the intended thermal design requirements for the 12-lead DFN package. Cross-reference the part number with the manufacturer's latest datasheet to validate pinout configurations and recommended external component values for the target application circuit.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 5A synchronous buck solution is required with a wide input voltage capability up to 18V. The integrated FETs simplify the bill of materials compared to discrete solutions. Consider the fixed 500 kHz switching frequency for balancing efficiency and passive component size. The forced CCM operation ensures consistent ripple characteristics across the load range, suitable for sensitive digital loads.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL85005 family of high-efficiency synchronous buck regulators. The 'A' variant specifically denotes operation in forced continuous conduction mode, distinguishing it from the standard ISL85005 which allows selection between CCM and diode emulation modes. The FRZ suffix indicates the lead-free RoHS-compliant 12-lead DFN package type.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL85005AFRZ is the non-tape version of the same device. ISL85005FRZ is the standard variant allowing mode selection rather than fixed forced CCM.