Texas Instruments TPS546B24ARVFR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 40-LFQFN Exposed Pad |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Voltage - Input (Max) | 18V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 20A |
| Supplier Device Package | 40-LQFN-CLIP (7x5) |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 225kHz ~ 1.5MHz |
| Synchronous Rectifier | No |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 5.5V |
| Voltage - Input (Min) | 2.95V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS546B24 |
| REACH Status | REACH Affected |
| Other Names | 296-TPS546B24ARVFRTR |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TI's TPS546B24ARVFR: A High-Performance Buck Converter
The Texas Instruments TPS546B24ARVFR is a highly integrated, non-isolated DC/DC converter designed for high-frequency operation and capable of delivering up to 20A output current. It features a synchronous step-down architecture with integrated 5.5mΩ/1.8mΩ MOSFETs, providing high efficiency and power density in a compact 7mm × 5mm, 40-pin LQFN package. The device supports a wide input voltage range of 2.95V to 18V and offers adjustable output voltage from 0.5V to 5.5V via pin strapping or through the PMBus interface. It is suitable for applications requiring high current and precise voltage regulation, such as data centers, active antenna systems, and automated test equipment.
Buck Switching Regulator IC TPS546B24ARVFR Features
The TPS546B24ARVFR is equipped with several advanced features that enhance its performance and flexibility. It supports up to 4x stacking with current sharing, allowing multiple devices to be interconnected to provide up to 80A on a single output rail. The device features a comprehensive PMBus command set with telemetry capabilities for monitoring output voltage, output current, and internal die temperature. It also includes differential remote sensing with an internal feedback divider to achieve less than 1% output voltage error over the operating temperature range of -40°C to +150°C. Other notable features include selectable switching frequencies from 225kHz to 1.5MHz, support for pre-biased outputs, and extensive fault detection and protection mechanisms.
Regulator Chip TPS546B24ARVFR Applications
The TPS546B24ARVFR is well-suited for a variety of high-current and high-efficiency applications. It is commonly used in data center switches and rack servers, where its ability to deliver up to 20A of current with high efficiency is critical. The device is also ideal for active antenna systems, remote radio units, and baseband units in telecommunications, providing reliable power conversion for high-performance systems. Additionally, it is used in automated test equipment (ATE) and medical imaging devices such as CT, PET, and MRI scanners, where precise voltage regulation and high current capability are essential. The TPS546B24ARVFR is also suitable for powering ASICs, SoCs, FPGAs, DSP cores, and I/O voltages in complex electronic systems.
