封装信息
| 封装 | 引脚 HTSSOP (PWP) | 14 |
| 工作温度范围 (°C) -40 to 85 |
| 包装数量 | 包装 90 | TUBE |
TPS54225 的特性
- D-CAP2™ Mode Enables Fast Transient Response
- Low Output Ripple and Allows Ceramic Output Capacitor
- Wide VCC Input Voltage Range: 4.5 V to 18 V
- Wide VIN Input Voltage Range: 2 V to 18 V
- Output Voltage Range: 0.76 V to 5.5 V
- Highly Efficient Integrated FET’s Optimized
for Lower Duty Cycle Applications
– 160 mΩ (High Side) and 110 mΩ (Low Side) - High Efficiency, less than 10 µA at shutdown
- High Initial Bandgap Reference Accuracy
- Adjustable Soft Start
- Pre-Biased Soft Start
- 700-kHz Switching Frequency (fSW)
- Cycle-By-Cycle Overcurrent Limit
- Power Good Output
- APPLICATIONS
- Wide Range of Applications for Low Voltage System
- Digital TV Power Supply
- High Definition Blu-ray Disc™ Players
- Networking Home Terminal
- Digital Set Top Box (STB)
- Wide Range of Applications for Low Voltage System
D-CAP2, PowerPAD are trademarks of Texas Instruments. Blu-ray Disc is a trademark of Blu-ray Disc Association.
TPS54225 的说明
The TPS54225 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54225 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54225 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components.
The TPS54225 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VCC input , and from 2-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54225 is available in the 14 pin HTSSOP package, and designed to operate from –40°C to 85°C.