Texas Instruments TPS54335ADRCR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 10-VFDFN Exposed Pad |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Voltage - Input (Max) | 28V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 3A |
| Supplier Device Package | 10-VSON (3x3) |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 50kHz ~ 1.5MHz |
| Synchronous Rectifier | Yes |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 24V |
| Voltage - Input (Min) | 4.5V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS54335 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS54335ADRCR 3A synchronous buck converter, DC-DC regulator power IC Overview
The TPS54335ADRCR is a high-efficiency 3A synchronous step-down DC-DC converter from Texas Instruments (TI), designed for applications requiring compact power solutions with wide input voltage ranges. It operates within an input range of 4.5V to 28V, delivering an adjustable output voltage from 0.8V to 24V with a switching frequency of 50kHz to 1.5MHz. The chip is housed in a 10-VSON (3x3mm) package, making it ideal for space-constrained designs. It features integrated 128mΩ (high-side) and 84mΩ (low-side) MOSFETs, eliminating the need for an external diode and reducing component count. With a low quiescent current (2µA in shutdown mode) and up to 95% efficiency, it is optimized for both high-performance and energy-sensitive applications. Additionally, it includes built-in protection features such as overcurrent, thermal shutdown, and undervoltage lockout (UVLO) for enhanced reliability156.
TPS54335ADRCR Key Features
The TPS54335ADRCR stands out with its synchronous rectification, significantly improving efficiency by reducing switching losses. It supports pulse-skipping mode at light loads to further optimize power consumption. The device features a fixed 2ms internal soft-start to minimize inrush current and ensure smooth power-up. Its current-mode control ensures stable operation across varying load conditions, while the ±1.5% voltage reference accuracy guarantees precise regulation. The chip also includes cycle-by-cycle current limiting, thermal shutdown protection, and hiccup-mode overcurrent protection to safeguard against fault conditions. With an industrial temperature range (-40°C to 150°C), it is suitable for harsh environments257.
TPS54335ADRCR Applications
This DC-DC converter is widely used in consumer electronics (e.g., smart TVs, set-top boxes, WiFi routers), industrial systems (motor drives, PLCs), automotive infotainment, and distributed power systems (5V/12V/24V bus converters). Its high efficiency and compact footprint make it ideal for battery-powered devices, portable electronics, and embedded computing modules. Additionally, it is employed in medical equipment and telecom infrastructure where stable, efficient power conversion is critical358.
Selection Advantages
Compared to non-synchronous buck converters, the TPS54335ADRCR offers higher efficiency (up to 95%), smaller PCB footprint, and lower component count due to its integrated MOSFETs. Its wide input voltage range (4.5V–28V) allows flexibility in various power supply designs, while adjustable frequency operation enables optimization for EMI-sensitive applications. The low shutdown current (2µA) extends battery life in portable devices, and its robust protection features reduce the risk of system failure. For designers seeking alternatives, TI’s TPS54336A (fixed 340kHz frequency) or LM3150 (higher current capability) may be considered469.
Alternative Models
1. LM25011: A non-synchronous buck regulator with wide Vin (4.5V–42V) but lower efficiency.
2. LM3150: A 12A synchronous buck converter for higher-power applications.
3. TPS54335E: A variant with enhanced thermal performance in a different package.
