TPS54331DDAR Part Information
Details for TPS54331DDAR by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The TPS54331 device is a 28-V, 3-A nonsynchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-μA shutdown supply-current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD package that have been internally optimized to improve thermal performance.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 3.5 to 28-V Input Voltage Range
- Adjustable Output Voltage Down to 0.8 V
- Adjustable Slow-Start Limits Inrush Currents
- Available in Easy-to-Use SOIC8 Package or Thermally Enhanced SOIC8 PowerPADu2122 Package
- Cycle-by-Cycle Current Limit, Frequency Fold Back, and Thermal Shutdown Protection
- Fixed 570 kHz Switching Frequency
- High Efficiency at Light Loads With a Pulse Skipping Eco-modeu2122
- Integrated 80-mu2126 High-Side MOSFET Supports up to 3-A Continuous Output Current
- Overvoltage Transient Protection
- Programmable UVLO Threshold
- Supported by WEBENCHu00ae
- Typical 1-u03bcA Shutdown Quiescent Current
Part Specifications
| Topology | Buck (Step Down) |
| Input Voltage Min | 3.5V |
| Input Voltage Max | 28V |
| No. of Outputs | 1Outputs |
| DC / DC Converter IC Case | SOIC |
| No. of Pins | 8Pins |
| Output Current | 3A |
| Output Voltage Min | 800mV |
| Output Voltage Max | 25V |
| Switching Frequency | 570kHz |
| Operating Temperature Max | 150°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | - |
| SVHC | No SVHC (27-Jun-2018) |
Alternative Part Descriptions
- DC/DC CONV, BUCK, 570KHZ, SOIC-8; Topology:Buck (Step Down); Input Voltage Min:3.5V; Input Voltage Max:28V; No. of Outputs:1Outputs; DC / DC Converter IC Case:SOIC; No. of Pins:8Pins; Output Current:3A; Output Voltage Min:800mV; RoHS Compliant: Yes | Newark Electronics
- 3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode | Texas Instruments