Texas Instruments TPS56339DDCR
| 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) | 24V |
| 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 | 500kHz |
| Synchronous Rectifier | Yes |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 16V |
| Voltage - Input (Min) | 4.5V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS56339 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS56339DDCR 3A step-down DC/DC regulator
The TPS56339DDCR is a high-efficiency, 3A synchronous step-down (buck) DC/DC converter from Texas Instruments, designed for compact, power-sensitive applications requiring robust voltage regulation. This advanced converter operates over a wide input voltage range of 4.5V to 17V, making it compatible with 5V, 12V, and battery-powered systems, including industrial, automotive, and consumer electronics. With a fixed 600kHz switching frequency, the TPS56339DDCR delivers high efficiency (up to 95%) while minimizing external component size, thanks to its synchronous rectification architecture. The device features an adjustable output voltage (0.8V to 7V) via an external resistor divider, providing flexibility for powering FPGAs, processors, and low-voltage ICs. Its integrated 80mΩ (high-side) and 50mΩ (low-side) MOSFETs reduce conduction losses, while pulse-width modulation (PWM) operation ensures stable performance across varying load conditions.
For applications requiring different specifications, alternative buck converters include:
● TPS56221 (2A, 17V input, ultra-compact SOT-23 package)
● LM2675 (3A, 40V input, higher voltage capability for automotive systems)
● LTC3638 (3A, 18V input, high efficiency with external sync option)
● AP63300 (3A, 18V input, cost-effective solution for consumer electronics)
