Texas Instruments TPS564201 Synchronous Step-Down Converter
Texas Instruments TPS564201 Synchronous Step-Down Converter is a simple, easy-to-use, 4A synchronous step-down converter in a SOT-23 package. The device is optimized to operate with minimum external component count and is optimized to achieve a low standby current. These switch-mode power supply (SMPS) devices employ D-CAP2 mode control, providing a fast transient response. The device supports low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components. The Texas Instruments TPS564201 operates in pulse skip mode, maintaining high efficiency during a light load operation.
Features
- TPS564201 4A converter integrated 50mΩ and 22mΩ FETs
- D-CAP2™ mode control with fast transient response
- 4.5V to 17V input voltage range
- 0.76V to 7V output voltage range
- Pulse skip mode
- 560kHz switching frequency
- Low shutdown current less than 5µA
- 1.6% feedback voltage accuracy (25ºC)
- Startup from a pre-biased output voltage
- Cycle-by-cycle overcurrent limit
- Hiccup-mode overcurrent protection
- Non-latch UVP and TSD protections
- 1.0ms fixed soft start
Applications
- Digital TV power supply
- High definition Blu-ray™ disc players
- Networking home terminal
- Digital Set-Top Box (STB)
- Surveillance
Functional Block Diagram
Related Development Tool
Texas Instruments TPS564201 Step-Down Converter Evaluation Module
Evaluates all of the features of the TPS564201, a single synchronous buck converter.
Opublikowano: 2016-09-09
| Zaktualizowano: 2022-03-11