RT7258GQW

Voltage Regulators - DC DC Switching Regulators Overview

The RT7258GQW is a synchronous step-down DC/DC converter manufactured by Richtek USA Inc., designed for high-efficiency power conversion in compact applications. It features an integrated high-side internal power MOSFET and provides a gate driver for an external low-side power MOSFET, allowing for optimized thermal performance and efficiency. The device operates with an input voltage range from 4.5 V to 24 V and delivers a continuous output current of 8 A. The adjustable output voltage spans from 808 mV to 15 V, supporting various digital load requirements. It utilizes a fixed switching frequency of 600 kHz, enabling the use of small passive components. The IC is housed in a 14-WDFN (4x3 mm) package with an exposed pad for enhanced heat dissipation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side internal power MOSFET combined with an external low-side MOSFET gate driver for flexible design optimization.
• Adjustable output voltage capability ranging from 808 mV to 15 V to accommodate diverse system requirements.
• Compact WDFN-14L package with exposed pad structure facilitating efficient thermal management in space-constrained layouts.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable devices requiring efficient battery-powered operation
• Smartphones and tablets needing stable core voltage regulation
• Digital set-top boxes and consumer electronics systems
• Industrial control modules and embedded computing platforms

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific ordering suffix and tape/reel specifications against the manufacturer's latest datasheet before finalizing procurement orders. Ensure that the selected packaging format aligns with automated assembly equipment capabilities. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) requirements for storage and handling procedures. Cross-reference the part number alias RT7258N-A if applicable to your supply chain documentation to avoid identification discrepancies during inventory management.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select the RT7258GQW when designing systems that require an 8 A output current with a wide input voltage range up to 24 V. The choice is appropriate for applications prioritizing high efficiency through the hybrid MOSFET configuration. Consider the 600 kHz switching frequency for balancing component size and electromagnetic interference. Evaluate the thermal performance needs relative to the WDFN-14L package's heat dissipation capabilities under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

The RT7258GQW belongs to Richtek's series of synchronous buck converters aimed at portable and industrial electronics. It complements other PMIC solutions by offering a balance between high current density and design flexibility. The product line focuses on reducing solution size while maintaining robust performance standards for modern digital loads.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official cross-reference guides or contact the manufacturer for validated alternatives if this specific package or parameter set is unavailable.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the topology of the RT7258GQW?

The RT7258GQW utilizes a Buck (step-down) topology for DC-to-DC voltage conversion.

How is the low-side power switch implemented in this device?

The device integrates a high-side internal power MOSFET and provides a dedicated gate driver for an external low-side power MOSFET.