TPS54201DDCR

Overview

The TPS54201DDCR is a synchronous buck converter from Texas Instruments designed for driving monochrome or infrared LED arrays. It operates with an input voltage range of 4.5 V to 28 V and delivers a continuous output current of 1.5 A. The device integrates 150-mΩ and 70-mΩ MOSFETs within a compact 6-pin SOT-23-THIN package. Key electrical parameters include a fixed switching frequency of 600 kHz, a shutdown current of 2 μA, and an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates high-side and low-side MOSFETs for high power density in a small footprint
• Supports analog dimming via internal reference adjustment and PWM dimming modes
• Features peak current mode control with internal compensation for fast transient response
• Includes automatic retry protection against open/short circuits and thermal shutdown

Applications

• IR LED drivers for IP network cameras
• LED drivers for analog security cameras
• Video doorbell systems
• Embedded camera systems
• Electronic smart locks

Procurement Notes

Verify the specific suffix DDCC or DDCR against the manufacturer's official documentation to confirm the tape and reel packaging configuration. Ensure the component matches the required SOT-23-THIN-6 pinout and lead finish specifications. Cross-reference the date code and lot number with the supplier's certificate of conformity to guarantee authenticity and traceability for quality assurance purposes.

Selection Notes

Select this component when designing LED driver circuits requiring wide input voltage compatibility up to 28 V. It is suitable for applications needing precise current regulation without external compensation components. Consider its integrated protection features for robust operation in consumer electronics and security surveillance equipment where space constraints and efficiency are critical design factors.

Part Context

This part belongs to the TPS5420x family of synchronous buck converters optimized for LED driving. Unlike general-purpose regulators, it includes specific features for LED control such as dimming inputs and fault protection relevant to optical loads. It shares architectural similarities with the TPS54200 but differs in protection behavior, offering automatic retry instead of latch-off.

Replacement Considerations

The TPS54200DDCR is a functional substitute within the same series. Verify that the application can tolerate latch-off protection rather than the automatic retry feature found in the TPS54201. Both devices share identical pinouts and electrical characteristics except for the fault handling mechanism.