TPS54225
- 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.
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.
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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | 4.5V to 18V Input, 2-A Synchronous Step-Down SWIFT(TM) Converter 数据表 (Rev. C) | 2011-2-14 | |||
| 应用手册 | 基于带有纹波注入谷底检测定导通时间频域分析的D-CAP2™频率响应模型 | 英语版 | 2015-9-2 | |||
| 应用手册 | Understanding Thermal Dissipation and Design of a Heatsink | 2011-5-4 |
设计与开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
TPS54225EVM-538 — 同步降压 DCAP2 模式转换器评估模块
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PMP6776 是低成本非隔离型同步降压电源。此设计使用 TPS56121 和 TPS54620 同步降压转换器以及 TPS54425 和 TPS54225 降压开关产生 7 个输出。其功能包括:输入电压范围为 10.8V 至 13.2V,输出为 6A 下 1V、4A 下 1.5V、6A 下 1.8V、2A 下 2V、8A 下 2.5V、8A 下 3.3V、4A 下 1.2V。
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 14 | Ultra Librarian |
订购和质量
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