TPS54302DDCR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | SOT-23-6 Thin, TSOT-23-6 |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 28V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 3A |
| Supplier Device Package | SOT-23-THIN |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 400kHz |
| Synchronous Rectifier | Yes |
| Voltage - Output (Min/Fixed) | 0.596V |
| Voltage - Output (Max) | 28V |
| Voltage - Input (Min) | 4.5V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS54302 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS54302DDCR Buck Switching Regulator IC 1 Output 3A
The TPS54302DDCR from Texas Instruments is a 4.5V to 28V input, 3A synchronous step-down (buck) DC/DC converter packed into a tiny 6-pin SOT-23 (DDC) package. This monolithic device integrates both 85mΩ high-side and 40mΩ low-side MOSFETs, a fixed 400kHz oscillator, and internal loop compensation, creating a complete power solution with minimal external components. It employs peak current-mode control and features spread-spectrum switching to reduce EMI, making it ideal for noise-sensitive environments. With an adjustable output from 0.6V to 26V, a low 45µA operating current, and a 2µA shutdown current, it delivers high efficiency across a wide load range. The device is fully specified for the industrial temperature range of -40°C to +125°C and includes comprehensive protection features such as hiccup-mode overcurrent, overvoltage, and thermal shutdown.
TPS54302DDCR Converter Applications
● Industrial Automation: Point-of-load (POL) conversion in PLCs, motor drives, and sensor nodes powered from noisy 24V backplanes.
● Consumer Electronics: Power management for set-top boxes, digital TVs, and audio amplifiers requiring compact, efficient 5V/3.3V rails.
● White Goods & Appliances: Control board power supplies for washing machines, refrigerators, and HVAC systems.
● Automotive Infotainment: Non-critical 12V power domains in head units and display modules where size and efficiency are critical.
Alternative buck converter Models
1. TPS5430DDAR (TI): A legacy 3A, 36V non-synchronous buck converter in an SO-8 package, suitable for designs requiring a wider 36V input range but occupying more board space.
2. TPS54331 (TI): A 3A, 29V synchronous buck converter in a smaller VSON package, offering higher switching frequency options but with a slightly narrower input range.
3. MP2451DT (Monolithic Power Systems): A 0.6A, 36V buck converter in a similar SOT-23 package, targeting lower-current applications where full 3A capability is not required.
4. LM2596S (TI): A classic 3A, 40V non-synchronous buck regulator in a TO-263 package, providing a rugged, through-hole compatible option for high-reliability or prototyping scenarios.
