TPS5450-Q1 - 汽车类 5A、宽输入降压 SWIFT 转换器

TPS5450-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS5450-Q1是汽车类 5A、宽输入降压 SWIFT 转换器，本站介绍了TPS5450-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS5450-Q1相关的TI元器件型号供参考。

TPS5450-Q1 - 汽车类 5A、宽输入降压 SWIFT 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

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 5.5V, 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.

产品特性

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-mΩ 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
–40°C to 125°C Operating Junction Temperature Range
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

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