RT5090CGQW

Overview

The RT5090CGQW is a Power Management IC (PMIC) designed for TV system applications. It integrates one buck controller, four high-efficiency synchronous buck converters, and one Low Dropout Regulator (LDO). The device features an I2C control interface for configuration. Input voltage ranges from 2.7V to 27V. Switching frequencies are selectable at 450kHz, 1MHz, or 1.5MHz. It operates within a junction temperature range of -40°C to 125°C. The component is housed in a 40-WQFN package with dimensions of 5x5 mm.

Feature Summary

• Integrates multiple power stages including synchronous buck converters and an LDO for comprehensive power management.
• Features an I2C control interface for digital configuration and monitoring.
• Supports selectable switching frequencies to optimize efficiency and passive component size.

Applications

• TV system power management
• Consumer electronics power supplies

Procurement Notes

Verify the specific suffix and revision level against the manufacturer's current datasheet to ensure compatibility with design requirements. Confirm RoHS compliance status and environmental declarations prior to procurement. Check for any product change notifications or end-of-life announcements that may affect long-term availability. Ensure the selected package variant matches the PCB footprint specifications exactly.

Selection Notes

Select this component when a single-chip solution is required to manage multiple voltage rails in space-constrained consumer devices. Consider the integrated topology which reduces external component count compared to discrete solutions. Evaluate the thermal performance of the WQFN package against the expected power dissipation in the target application environment.

Part Context

This part belongs to Richtek's portfolio of specialized PMICs aimed at simplifying power architecture in display and television systems. It consolidates functions typically requiring multiple separate regulators into a single integrated circuit, thereby reducing board space and assembly complexity for OEM manufacturers.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model in the provided documentation. Designers should consult the manufacturer for pin-compatible alternatives or perform a full redesign if substituting with components from other vendors.

FAQ

What is the input voltage range for the RT5090CGQW?

The input voltage range is specified as 2.7V to 27V.

How many output channels does this PMIC provide?

It provides five outputs: four synchronous buck converters and one LDO.