TPS54240 - 具有 Eco-Mode 的 3.5V 至 42V 输入、2.5A 降压转换器

TPS54240是TI德州仪器公司的一款转换器（集成开关）产品，TPS54240是具有 Eco-Mode 的 3.5V 至 42V 输入、2.5A 降压转换器，本站介绍了TPS54240的封装应用图解、特点和优点、功能等，并给出了与TPS54240相关的TI元器件型号供参考。

TPS54240 - 具有 Eco-Mode 的 3.5V 至 42V 输入、2.5A 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™
138-μA Operating Quiescent Current
1.3-μA Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start and Sequencing
UV and OV Power Good Output
Adjustable UVLO Voltage and Hysteresis
0.8-V Internal Voltage Reference
10-Pin HVSSOP and 10-Pin 3-mm x 3-mm VSON Packages with PowerPAD™
Supported by WEBENCH® Software Tool

产品应用

12-V and 24-V Industrial and Commercial Low-Power Systems
GSM, GPRS Modules in Fleet Management, eMeters, and Security Systems

产品说明

The TPS54240 device is a 42-V, 2.5-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 no load, regulated output supply current to 138 μA. 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 it can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing and 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 optimization of external component size. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54240 is available in 10-pin, thermally-enhanced HVSSOP and 10-pin 3-mm x 3-mm PowerPAD package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS54240	HVSSOP (10)	3.00 mm x 3.00 mm
TPS54240	VSON (10)	3.00 mm x 3.00 mm

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