Texas Instruments TPS56x219/TPS56x219A Step-Down Regulators
Texas Instruments TPS56x219/TPS56x219A Synchronous Step-Down Regulators are simple, easy-to-use, 2A or 3A synchronous step-down converters in 8 pin SOT-23 package. Each device is optimized to operate with minimum external component counts and achieve low standby current. These switch mode power supply (SMPS) devices employ D-CAP2™ mode control providing a fast transient response. Each device supports both low equivalent series resistance (ESR) output capacitors and ultra-low ESR ceramic capacitors with no external compensation components. The devices operate in continuous conduction mode, which reduces the output ripple voltage in light load compared to discontinuous conduction mode.
Features
- TPS562219/TPS562219A
- 2A converter with integrated 133mΩ and 80mΩ FETs
- TPS563219/TPS563219A
- 3A converter with integrated 68mΩ and 39mΩ FETs
- D-CAP2 mode control with 650kHz switching frequency
- 4.5V to 17V input voltage range
- 0.76V to 7V output voltage range
- 650kHz switching frequency
- Low shutdown current less than 10µA
- 1% feedback voltage accuracy (+25°C)
- Startup from pre-biased output voltage
- Cycle by cycle overcurrent limit
- Hiccup-mode under voltage protection
- Non-latch OVP, UVLO and TSD protections
- Adjustable soft start
- Power good output
Applications
- Digital TV power supply
- High definition Blu-ray Disc™ players
- Networking home terminal
- Digital Set Top Box (STB)
Evaluation Modules
Texas Instruments TPS56x219EVM-663/TPS56x219AEVM-663 EVMs
Designed to evaluate the TPS56x219/TPS56x219A, a wide-VIN synchronous step-down converters.
Datasheets
Opublikowano: 2015-04-24
| Zaktualizowano: 2024-04-09