TPS54541 - 具有软启动和 Eco-mode 的 TPS54541 4.5V 至 60 V 输入、5A、降压 DC-DC 转换器

TPS54541是TI德州仪器公司的一款转换器（集成开关）产品，TPS54541是具有软启动和 Eco-mode 的 TPS54541 4.5V 至 60 V 输入、5A、降压 DC-DC 转换器，本站介绍了TPS54541的封装应用图解、特点和优点、功能等，并给出了与TPS54541相关的TI元器件型号供参考。

TPS54541 - 具有软启动和 Eco-mode 的 TPS54541 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™
87-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 and 24-V Industrial, Automotive and Communications Power Systems

产品说明

The TPS54541 device is a 42-V 5-A step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 45 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. When the enable pin is pulled low, the shutdown supply current is reduced to 2 μA .

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 protect internal and external components during an overload condition.

The TPS54541 device is available in a 10-pin 4-mm × 4-mm WSON package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS54541	WSON (10)	4.00 mm × 4.00 mm

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