TPS5450-EP
- Qualified for Automotive Applications
- Wide Input Voltage Range: 5.5 V to 36 V
- Up to 5-A Continuous (6-A Peak) Output Current
- High Efficiency Greater than 90% Enabled by
110-m
Integrated MOSFET Switch - Wide Output Voltage Range: Adjustable Down to
1.22 V with 1.5% Initial Accuracy - Internal Compensation Minimizes External
Parts Count - Fixed 500-kHz Switching Frequency for Small
Filter Size - 18-µA Shutdown Supply Current
- Improved Line Regulation and Transient Response
by Input Voltage Feed Forward - System Protected by Overcurrent Limiting,
Overvoltage Protection, and Thermal Shutdown - Available in Small Thermally Enhanced 8-Pin
SOIC PowerPAD™ Package - For SWIFT™ Documentation, Application Reports
and Design Software, See the TI Website at www.ti.com/swift - APPLICATIONS
- High-Density Point-of-Load Regulators
- LCD Displays, Plasma Displays
- Battery Chargers
- 12-V/24-V Distributed Power Systems
- SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Military (–55°C/125°C) Temperature Range(1)
- Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
(1) Additional temperature ranges are available - contact factory
As a member of the SWIFT™ family of DC/DC regulators, the TPS5450 is a high-output-current PWM converter that integrates a low-resistance high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V, an internally set slow-start circuit to limit inrush currents, and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection, and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated.
The TPS5450 device is available in a thermally enhanced, 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and software tools to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.
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 | 5-A, Wide Input Range, Step-Down Swift Converter 数据表 | 2009-7-23 | |||
| * | VID | TPS5450-EP VID V6209644 | 2016-11-30 |
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）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
订购和质量
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