Texas Instruments TPS6128xD/TPS6128xE Synchronous Booster Converter
Texas Instruments TPS6128xD/TPS6128xE Synchronous Booster Converter provides a power supply solution for products powered by either a Li-Ion, Nickel-Rich, Silicon Anode, Li-Ion, or LiFePO4 battery. The voltage range is optimized for single-cell portable applications like those used in smartphones or tablet PCs. When the device is a high-power pre-regulator, the TPS6128xD/TPS6128xE extends the battery run-time and overcomes the powered system's input current and voltage limitations.
While in shutdown, the Texas Instruments TPS6128xD operates in a true pass-through mode with only 3µA quiescent consumption for the longest battery shelf life. When the battery is in a good state of charge, a low-ohmic, high-efficient integrated pass-through path connects the battery to the powered system. If the battery gets to a lower state of charge and its voltage becomes lower than the desired minimum system voltage, the device seamlessly transits into boost mode to use the full battery capacity.
Features
- 95% efficiency at 2.3MHz operation
- 3µA quiescent current in low IQ pass-through mode
- Wide VIN range from 2.3V To 4.8V
- IOUT ≥ 4A (Peak) at VOUT = 3.35V, VIN ≥ 2.65V
- Integrated pass-through mode (35mΩ)
- Programmable valley inductor current limit and output voltage
- True pass-through mode during shutdown
- Best-in-class line and load transient
- Low-ripple light-load PFM mode
- In-Situ customization with on-chip E2PROM (write protection)
- Two interface options
- I2C compatible I/F up to 3.4Mbps (TPS61280D)
- Simple I/O logic control interface
- Thermal shutdown and overload protection
- Total solution size < 20mm2, sub 1mm profile
Applications
- Single-cell Ni-Rich, Si-Anode, Li-Ion, LiFePO4 smartphones or tablet PCs
- 2.5G, 3G, or 4G mini-module data cards
- Current limited applications featuring high peak power loads
Functional Block Diagram
發佈日期: 2018-03-15
| 更新日期: 2023-11-03