Texas Instruments TPS5430DDAR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-PowerSOIC (0.154", 3.90mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 36V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 3A |
| Supplier Device Package | 8-SO PowerPad |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 500kHz |
| Synchronous Rectifier | No |
| Voltage - Output (Min/Fixed) | 1.221V |
| Voltage - Output (Max) | 32.04V |
| Voltage - Input (Min) | 5.5V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS5430 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Texas Instruments TPS5430DDAR Buck Switching Regulator IC – Detailed Overview
The TPS5430DDAR from Texas Instruments is a high-efficiency, 28V, 3A step-down (buck) DC-DC converter in a SOIC-8 (DDAR) package. It integrates a low-resistance N-channel MOSFET (RDS(on) = 110mΩ) and operates at a fixed 500kHz switching frequency, making it suitable for a wide range of power supply applications. The device supports an input voltage range of 5.5V to 28V and delivers an adjustable output voltage from 1.22V up to 25V, providing flexibility for various system requirements. With its thermal shutdown and overcurrent protection, the TPS5430DDAR ensures reliable operation in demanding environments.
Key Features
The TPS5430DDAR offers high efficiency (up to 95%), reducing power loss and heat generation in compact designs. Its internal compensation simplifies circuit design, while soft-start functionality prevents inrush current issues during startup. The device also features undervoltage lockout (UVLO) and cycle-by-cycle current limiting, enhancing system reliability. The SOIC-8 package provides a compact footprint, making it ideal for space-constrained applications. Additionally, the wide input voltage range allows compatibility with various power sources, including 12V/24V industrial supplies and battery-powered systems.
Typical Applications
The TPS5430DDAR is widely used in industrial automation, telecom infrastructure, networking equipment, and consumer electronics. It is particularly suitable for point-of-load (POL) power supplies, distributed power systems, and battery-powered devices requiring efficient voltage regulation. Common applications include FPGA/ASIC power delivery, motor control systems, and embedded computing modules. Its robust design also makes it a preferred choice for automotive infotainment systems and 5G base stations, where stable and efficient power conversion is critical.
Selection TPS5430DDAR Regulator IC Advantages
Compared to competing buck converters, the TPS5430DDAR stands out due to its high integration, ease of use, and cost-effectiveness. The built-in MOSFET and PWM controller reduce external component count, lowering BOM costs and PCB space requirements. Its wide operating temperature range (-40°C to 125°C) ensures performance in harsh environments, while TI's proven reliability makes it a trusted choice for mission-critical applications.
