RT4533AGJ6

Overview

The RT4533AGJ6 is a single-output DC-DC boost converter IC designed for LED driver applications. It integrates an internal switch capable of delivering up to 1.2A and operates with a fixed switching frequency of 1.1MHz. The device supports PWM dimming control and functions within an input voltage range of 2.5V to 5.5V, providing a maximum output voltage of 36.5V. It is housed in a TSOT-23-6 package and is rated for operation between -40°C and 85°C.

Feature Summary

• Integrates an internal power switch for compact design
• Supports PWM dimming for brightness control
• Utilizes a fixed high-frequency switching topology

Applications

• LED backlighting systems
• Portable electronic devices requiring efficient step-up conversion

Procurement Notes

Verify the specific suffix 'GJ6' against the manufacturer's official datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering information matches the exact package type and environmental compliance requirements specified by Richtek USA Inc. for this part number.

Selection Notes

Select this component when a compact boost solution is required for driving LEDs from a low-voltage source. The integrated switch and fixed frequency simplify external component selection. Verify that the load current does not exceed the internal switch rating and that the output voltage remains within the specified limit.

Part Context

This part belongs to the RT4533 family of asynchronous boost converters manufactured by Richtek. It is specifically tailored for LED driver applications where space constraints and efficiency are critical. The TSOT-23-6 package allows for small footprint implementation in portable electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.