TPS54231D Part Information
Details for TPS54231D by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The TPS54231 device is a 2-V, 2-A non-synchronous 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-bycycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54231 device is available in an 8-pin SOIC package that has 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
- 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 2 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 | 2A |
| 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 | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| Adjustable Output Voltage Max | 25V |
| Adjustable Output Voltage Min | 800mV |
| Base Number | 54231 |
| Frequency | 570kHz |
| Operating Temperature Min | -40°C |
| Operating Temperature Range | -40°C to +150°C |
| Output Voltage | 3.3V |
| Primary Input Voltage | 28V |
| Supply Voltage Min | 3.5V |
| Termination Type | Surface Mount Device |
| Voltage Regulator Type | Step Down (Buck) |
Alternative Part Descriptions
- Conv DC-DC Single Step Down 3.5V to 28V 8-Pin SOIC Tube | Avnet America
- 3.5 to 28V Input, 2A, 570kHz Step-Down Converter with Eco-mode™ | Texas Instruments
- Conv DC-DC 3.5V to 28V Step Down Single-Out | GreenChips