ISL85413FRTZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL85413FRTZ-T7A is a synchronous buck regulator manufactured by Renesas Electronics. It operates with an input voltage range of 3.5 V to 40 V and delivers a continuous output current of 300 mA. The device provides an adjustable output voltage between 600 mV and 34 V. It features an internal switching frequency of 700 kHz and integrates both high-side and low-side NMOS devices. The component supports selectable PFM or forced PWM modes for light load efficiency optimization. It includes power-good and enable functions, operates within a temperature range of -40°C to +125°C, and utilizes a TDFN-EP-8 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side NMOS FETs for high efficiency and minimal external components
• Supports selectable PFM or forced PWM operation at light loads
• Includes internal soft-start and configurable switching frequency
• Provides power-good status indication and shutdown control

Voltage Regulators - DC DC Switching Regulators Applications

• High voltage industrial applications
• Battery powered systems
• Point-of-load regulation
• General purpose DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix T7A against official Renesas documentation to confirm reel quantity and tape specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet. Check for active obsolescence notices as this component family may have lifecycle changes. Ensure ESD handling protocols are followed during assembly due to surface mount packaging requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a wide input voltage range up to 40 V is required with moderate output current capability. Consider the integrated MOSFETs for simplified design and reduced bill of materials. Evaluate the fixed 700 kHz frequency against electromagnetic interference constraints. Verify that the TDFN-8 package thermal performance meets the application's heat dissipation needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL85413 series of synchronous buck regulators from Renesas. The series is designed for applications requiring high efficiency and low component count. Similar parts in the ecosystem include variants with different output currents or input voltage ranges, such as the ISL85410 or ISL85418, which share similar architectural features but differ in electrical ratings.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes must match the 300mA output current, 40V input limit, and TDFN-8 package. Verify pin compatibility and thermal characteristics before substitution. Cross-reference with other Renesas synchronous buck regulators in the same package if available.