TPS54331-Q1 - 具有 Eco-mode(tm) 的汽车类 3A、28V 输入、570 kHz、降压 SWIFT(tm) DC/DC 转换器

TPS54331-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS54331-Q1是具有 Eco-mode(tm) 的汽车类 3A、28V 输入、570 kHz、降压 SWIFT(tm) DC/DC 转换器，本站介绍了TPS54331-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS54331-Q1相关的TI元器件型号供参考。

TPS54331-Q1 - 具有 Eco-mode(tm) 的汽车类 3A、28V 输入、570 kHz、降压 SWIFT(tm) DC/DC 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

The TPS54331 is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.

产品特性

Qualified for Automotive Applications
3.5V to 28V Input Voltage Range
Adjustable Output Voltage Down to 0.8V
Integrated 80 mΩ High Side MOSFET Supports up to 3A Continuous Output Current
High Efficiency at Light Loads with Pulse Skipping Eco-mode™ Control
Fixed 570kHz Switching Frequency
Typical 1µA Shutdown Quiescent Current
Adjustable Slow Start Limits Inrush Currents
Programmable UVLO Threshold
Overvoltage Transient Protection
Cycle-by-Cycle Current Limit, Frequency Fold Back and Thermal Shutdown Protection
Available in Easy-to-Use SOIC8 Package
Supported by SwitcherPro™ Software Tool (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
strong>For SWIFT™ Documentation, See the TI Website at www.ti.com/swift
APPLICATIONS
- Consumer Applications such as Set-Top Boxes, CPE Equipment, LCD Displays, Peripherals, and Battery Chargers
- Industrial and Car Audio Power Supplies
- 5-V, 12-V and 24-V Distributed Power Systems

SWIFT, Eco-mode, SwitcherPro, PowerPAD are trademarks of Texas Instruments.

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