RT6256CGQUF

Overview

The RT6256CGQUF is a synchronous step-down converter and LDO regulator from Richtek USA Inc., housed in a 12-UQFN-HL(3x3) package. It integrates one adjustable buck output capable of delivering up to 6A and one fixed 5V LDO output rated at 100mA. The device operates with an input voltage range of 5.1V to 23V and features a switching frequency of 750kHz. It supports operation across a junction temperature range of -40°C to 125°C.

Feature Summary

• Integrates a high-current synchronous buck converter with an auxiliary low-dropout linear regulator for combined power management.
• Utilizes a compact 12-lead ultra-thin quad flat no-lead package designed for space-constrained surface-mount applications.

Applications

• Portable electronic devices requiring efficient multi-rail power distribution
• Industrial control systems needing robust voltage regulation under varying loads
• Communication equipment utilizing synchronized power stages for noise reduction

Procurement Notes

Verify the specific suffix 'CGQUF' against official Richtek documentation to confirm pinout compatibility and thermal characteristics. Ensure that the required output voltages align with the adjustable buck and fixed LDO configurations provided in the datasheet before finalizing procurement orders.

Selection Notes

Select this component when a single IC solution is needed to provide both high-current digital logic power and clean analog supply rails. The integrated topology reduces board space compared to discrete solutions, while the 750kHz frequency allows for smaller external passive components.

Part Context

This part belongs to the RT6256 family of mixed-signal PMICs. Variants within this series differ primarily in fixed output voltages or current ratings, but share the same core architecture and packaging. The CGQUF designation specifies the particular electrical parameters and package type for this configuration.

Replacement Considerations

Consult the official cross-reference list for verified substitutes. Direct replacements must match the 12-UQFN-HL package and maintain compatible input/output specifications without altering the functional pinout.