TPS5401 - 3.5V 至 42V 输入、0.5A 降压转换器

TPS5401是TI德州仪器公司的一款转换器（集成开关）产品，TPS5401是3.5V 至 42V 输入、0.5A 降压转换器，本站介绍了TPS5401的封装应用图解、特点和优点、功能等，并给出了与TPS5401相关的TI元器件型号供参考。

TPS5401 - 3.5V 至 42V 输入、0.5A 降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

3.5-V to 42-V Input Voltage Range
200-mΩ High-Side MOSFET
High Efficiency at Light Loads With a Pulse-Skipping Eco-mode™ Control Scheme
116-μA Operating Quiescent Current
1.3-μA Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start/Sequencing
UV and OV Power-Good Output
Adjustable UVLO Voltage and Hysteresis
0.8-V ±3.5% Internal Voltage Reference
MSOP10 With PowerPAD™ Package
Supported by WEBENCH
For SWIFT™ Power Products Documentation, see http://www.ti.com/swift

产品应用

12-V and 24-V Industrial and Commercial Low-Power Systems
E-Meters

产品说明

The TPS5401 device is a 42-V, 0.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the supply current to 116 μA when outputting regulated voltage with no load. Using the enable pin, shutdown supply current is reduced to 1.3 μA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching-frequency range allows efficiency and external component size optimization. Frequency foldback and thermal shutdown protect the part during an overload condition.

The TPS5401 is available in a 10-pin thermally enhanced MSOP PowerPAD package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS5401	MSOP (10)	3.00 mm × 3.00 mm

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