Texas Instruments TPS81256 Step-Up Converter & Evaluation Module
Texas Instruments TPS81256 High Efficiency Step-Up Converter is a complete MicroSiP DC/DC step-up power solution intended for battery-powered portable applications. Included in the package are the switching regulator, inductor, and input/output capacitors. Only a tiny additional output capacitor is required to finish the design. TI TPS81256 is based on a high-frequency synchronous step-up DC/DC converter optimized for battery-powered portable applications. The DC/DC converter operates at a regulated 4MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. TI TPS81256EVM-121 enables test and evaluation of TPS81256.
Features
- 91% Efficiency at 4MHz Operation
- Wide VIN Range From 2.5V to 5.5V
- IOUT ≥550mA at VOUT = 5.0V, VIN ≥3.3V
- ±2% Total DC Voltage Accuracy
- 43µA Supply Current
- Line and Load Transient
- VIN ≥ VOUT Operation
- Low-Ripple Light-Load PFM Mode
- True Load Disconnect During Shutdown
- Thermal Shutdown and Overload Protection
- Sub 1mm Profile SolutionTotal Solution Size <9mm²
- 9-Pin MicroSiP™ Packaging
Applications
- Cell Phones, Smart-Phones, Tablet PCs
- Mono and Stereo APA Applications
- USB-OTG, HDMI Applications
- USB Charging Port (5V)
Functional Diagram
Additional Resources
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Publicado: 2012-09-04
| Actualizado: 2024-08-23