ISL85413FRTZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL85413FRTZ-T is a synchronous buck regulator manufactured by Renesas Electronics Corporation. It features a wide input voltage range of 3.5V to 40V and provides a continuous output current up to 300mA. The device integrates high-side and low-side NMOS devices, eliminating the need for external compensation. It operates at an internal switching frequency of 700kHz and supports selectable PFM or forced PWM modes. The output voltage ranges from 0.6V to 34V. It is housed in a Pb-free 3mm x 3mm TDFN package with an operating junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates both high-side and low-side NMOS FETs for high efficiency and minimal external component requirements.
• Features selectable PFM or forced PWM mode at light loads to optimize efficiency across varying load conditions.
• Includes power-good and enable functions for system monitoring and control.
• Requires no external compensation, simplifying design implementation.

Voltage Regulators - DC DC Switching Regulators Applications

• High voltage industrial applications
• Battery powered applications
• General purpose synchronous buck regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'FRTZ' against official Renesas documentation to confirm tape-and-reel packaging and lead-free status. Ensure compatibility with the required 3mm x 3mm TDFN footprint during PCB layout. Confirm that the 300mA output current meets the target application's peak and steady-state demands. Check for moisture sensitivity level (MSL) handling requirements prior to assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution with a wide input voltage range up to 40V is required. It is suitable for designs prioritizing low bill-of-materials count due to integrated MOSFETs and lack of compensation needs. Consider the 700kHz switching frequency for trade-offs between component size and electromagnetic interference. Verify that the 300mA output capability aligns with the load requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL85413 belongs to the ISL8541x family of synchronous buck regulators from Renesas (formerly Intersil). This series includes variants with different output current capabilities, such as the ISL85410 (1A), ISL85415 (500mA), and ISL85418 (800mA). These parts share similar architectural features but differ in current handling and sometimes input voltage specifications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include ISL85410FRZ-T, ISL85415FRZ-T, and ISL85418FRZ-T, though output currents vary. Cross-family replacements should be evaluated based on pin compatibility and electrical parameters. Always verify updated datasheets for any changes in pinout or functionality before substitution.