TPS54361 - 具有软启动和 Eco-mode 的 4.5V 至 60 V 输入、5A、降压 DC-DC 转换器

TPS54361是TI德州仪器公司的一款转换器（集成开关）产品，TPS54361是具有软启动和 Eco-mode 的 4.5V 至 60 V 输入、5A、降压 DC-DC 转换器，本站介绍了TPS54361的封装应用图解、特点和优点、功能等，并给出了与TPS54361相关的TI元器件型号供参考。

TPS54361 - 具有软启动和 Eco-mode 的 4.5V 至 60 V 输入、5A、降压 DC-DC 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

High Efficiency at Light Loads With Pulse-Skipping Eco-Mode™
89-mΩ High-Side MOSFET
152-μA Operating Quiescent Current and 2-μA Shutdown Current
100-kHz to 2.5-MHz Adjustable Switching Frequency
Synchronizes to External Clock
Low Dropout at Light Loads With Integrated BOOT Recharge FET
Adjustable UVLO Voltage and Hysteresis
UV and OV Power Good Output
Adjustable Soft Start and Sequencing
0.8-V 1% Internal Voltage Reference
10-Pin WSON With Thermal Pad Package
–40°C to 150°C TJ Operating Range
Supported by WEBENCH® Software Tool

产品应用

Industrial Automation and Motor Control
Vehicle Accessories: GPS (see SLVA412), Entertainment
USB Dedicated Charging Ports and Battery Chargers (see SLVA464)
12-V, 24-V, and 48-V Industrial, Automotive, and Communications Power Systems

产品说明

The TPS54361 device is a 60-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 65 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 μA. Shutdown supply current is reduced to 2 μA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor-divider at the enable pin. The output voltage startup ramp is controlled by the soft-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.

A wide adjustable switching frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protects internal and external components during an overload condition.

The TPS54361 device is available in a 10-pin 4-mm × 4-mm WSON package.

Device Information

ORDER NUMBER	PACKAGE (PIN)	BODY SIZE
TPS54361QDPR	WSON (10)	4.00 mm × 4.00 mm

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