Texas Instruments TPS56x24x Synchronous Step-Down Converters
Texas Instruments TPS56x24x Synchronous Step-Down Converters are easy-to-use, high-power-density, synchronous buck converters with an input voltage range of 3V to 17V. The simple, high-efficiency converters support up to 2A or 3A continuous output current at output voltages between 0.6V and 10V. The TPS56x24x series employs D-CAP3™ control mode to support low-ESR output capacitors and provide a fast transient response without requiring external compensation. The devices can support up to 95% duty cycle operation. The TPS562242B and TPS563242 operate in eco-mode, which maintains high efficiency during light loading. The TPS563247 operates in FCCM mode, which maintains low output ripple and the same frequency across all load conditions. Texas Instruments TPS56x24x devices are available in a 1.6mm x 1.6mm SOT-563 package with a junction temperature of –40°C to +125°C.
Features
- Configured for a wide range of applications
- 3V to 17V input voltage range
- 0.6V to 10V output voltage range
- 0.6V reference voltage
- ±1% reference accuracy at +25°C
- ±1.5% reference accuracy at –40°C to +125°C
- Integrated 55.0mΩ and 24.3mΩ MOSFETs
- 100µA low quiescent current
- 1.2MHz switching frequency
- Maximum 95% large duty cycle operation
- Precision EN threshold voltage
- 1.6ms fixed typical soft-start time
- Ease of use and small design size
- TPS562242B, TPS563242 eco-mode, TPS563247 FCCM mode at light loading
- D-CAP3 control mode
- Easy layout with integrated bootstrap capacitor
- Supports start-up with prebiased output
- Non-latch for OV, OT, and UVLO protection
- Hiccup mode for UV protection
- Cycle-by-cycle OC and NOC protection
- 1.6mm x 1.6mm SOT-563 package
Applications
- WLAN/Wi-Fi® access points, switches, routers
- Appliances, video recorders
- Pro-audio, surveillance, drones
- TVs, STB, and DVR, smart speakers
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Functional Block Diagram
