RT5028FGQW

Overview

The RT5028FGQW is a highly integrated low-power high-performance analog System on Chip (SoC) with Power Management IC (PMIC) capabilities, designed for industrial applications. It integrates four synchronous step-down DC-DC converters and eight Low Dropout (LDO) regulators to provide comprehensive system power solutions. The device features embedded Multi-Time Programmable (MTP) Non-Volatile Memory for configuring sequence and timing parameters. It operates within an input voltage range of 2.5 V to 5.5 V and supports a switching frequency between 500 kHz and 2 MHz. The outputs provide adjustable voltages ranging from 0.7 V to 3.6 V with current capacities up to 2.4 A. It functions reliably in temperatures from -40°C to +85°C and is housed in a 56-WQFN package.

Feature Summary

• Integrates four synchronous buck converters and eight LDOs for complete system power management
• Includes embedded MTP non-volatile memory for flexible configuration of sequencing and timing
• Supports programmable switching frequencies and output voltages for customized power delivery

Applications

• Industrial control systems requiring multi-rail power distribution
• Complex industrial SoC platforms needing integrated power sequencing
• Embedded systems utilizing MTP for factory calibration or configuration storage

Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the ordered component matches the exact package dimensions and thermal requirements of the target design. Cross-reference the part number with the latest revision history to avoid obsolete variants. Confirm that the MTP content requirements align with the pre-programmed options if available, or plan for field programming procedures.

Selection Notes

Select this component when a single-chip solution is required to replace multiple discrete regulators, reducing board space and complexity. It is suitable for designs needing precise power sequencing managed via internal memory rather than external logic. Consider its thermal performance in the WQFN package relative to the total power dissipation of all active channels. Evaluate the need for the integrated IRQ reporting feature for system monitoring and fault handling.

Part Context

This part belongs to the RT5028 family of integrated PMICs from Richtek Technology Corporation. These devices are engineered specifically for industrial environments, offering robustness and flexibility through their mixed-signal architecture. The family typically combines high-efficiency switching regulators with precision linear regulators and non-volatile memory to streamline the design of complex industrial electronics.

Replacement Considerations

Public confirmed substitute part numbers: RT5028DGQW.