Overview
The TPSM84212EAB is a highly integrated, synchronous buck power module produced by Texas Instruments. This module combines a 1.5-A DC/DC converter with power MOSFETs, a shielded inductor, and necessary passives into a compact 3-pin TO-220 footprint package. It is designed to provide a fixed output voltage of 12.0 V from an input voltage range of 14.5 V to 28 V. The module offers high efficiency, up to 95%, and operates at a fixed switching frequency of 400 kHz, which helps in minimizing output voltage ripple and ensuring small design sizes.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 14.5 | - | 28 | V |
| Output Voltage (VOUT) | 11.76 | 12.0 | 12.24 | V |
| Output Current (IOUT) | 0 | - | 1.5 | A |
| Switching Frequency (FSW) | 290 | 400 | 510 | kHz |
| Operating Ambient Temperature Range | -40 | - | 85 | °C |
| Operating Junction Temperature Range | -40 | - | 125 | °C |
| Efficiency | - | - | 95% | - |
| Output Voltage Ripple | - | - | 15 | mV |
Key Features
- Complete integrated power solution in a 3-pin TO-220 footprint.
- Fixed output voltage of 12.0 V.
- High efficiency up to 95%.
- 400 kHz switching frequency.
- Advanced Eco-mode™ pulse skip for high efficiency under light load conditions.
- Pre-bias output start-up capability.
- Over-current protection and output over-voltage protection.
- Thermal shutdown.
- Operating ambient temperature range: -40°C to +85°C.
- Operating junction temperature range: -40°C to +125°C.
- Meets EN55022 Class B emissions standards.
Applications
- 12-V and 24-V distributed power-bus supplies.
- Industrial white goods.
- Consumer electronics such as audio equipment, set-top boxes (STB), and digital TVs (DTV).
- Printers.
Q & A
- What is the input voltage range for the TPSM84212EAB? The input voltage range is from 14.5 V to 28 V.
- What is the fixed output voltage of the TPSM84212EAB? The fixed output voltage is 12.0 V.
- What is the maximum output current of the TPSM84212EAB? The maximum output current is 1.5 A.
- What is the switching frequency of the TPSM84212EAB? The switching frequency is typically 400 kHz.
- What are the operating temperature ranges for the TPSM84212EAB? The operating ambient temperature range is -40°C to +85°C, and the operating junction temperature range is -40°C to +125°C.
- Does the TPSM84212EAB have over-current protection? Yes, it has over-current protection and output over-voltage protection.
- What is the efficiency of the TPSM84212EAB? The efficiency can be up to 95%.
- What type of footprint does the TPSM84212EAB use? It uses a 3-pin TO-220 footprint.
- Does the TPSM84212EAB meet any specific emissions standards? Yes, it meets EN55022 Class B emissions standards.
- What are some common applications for the TPSM84212EAB? Common applications include distributed power-bus supplies, industrial white goods, consumer electronics, and printers.
