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The TPS54201DDCT is a synchronous buck converter from Texas Instruments designed for WLED driver applications. It operates with an input voltage range of 4.5 V to 28 V and provides a maximum output current of 1.5 A. The device features a fixed switching frequency of 600 kHz and supports PWM dimming control. It delivers an adjustable output voltage ranging from -100 mV to 28 V. The component includes shutdown functionality and operates within a temperature range of -40°C to +125°C. It utilizes a SOT-23-THIN-6 package.
Verify the specific suffix 'DDCT' corresponds to the cut-tape packaging variant rather than reel-only configurations. Confirm that the SOT-23-THIN-6 footprint matches the target PCB layout, as thermal performance depends on adequate copper area. Ensure the design accounts for the 600 kHz switching frequency regarding EMI filtering requirements.
Select this component when a low-profile solution is required for driving white LEDs with input voltages up to 28 V. It is suitable for applications requiring precise current regulation and PWM dimming capabilities. Consider the 1.5 A output limit and the specific thermal characteristics of the thin package when evaluating load requirements compared to higher-current alternatives.
This part belongs to the TPS5420x series of synchronous buck converters optimized for LED lighting. It differentiates itself through its small form factor and integrated driver capabilities. The series targets consumer electronics where board space is limited. It complements other variants like the TPS54202H which offers higher current capacity but may differ in package or frequency specifications.