TPS57140-Q1 - 具有 Eco-Mode? 的汽车类 3.5V 至 42V 输入、1.5 A 降压 SWIFT? 转换器

TPS57140-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS57140-Q1是具有 Eco-Mode? 的汽车类 3.5V 至 42V 输入、1.5 A 降压 SWIFT? 转换器，本站介绍了TPS57140-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS57140-Q1相关的TI元器件型号供参考。

TPS57140-Q1 - 具有 Eco-Mode? 的汽车类 3.5V 至 42V 输入、1.5 A 降压 SWIFT? 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 TPS57140-Q1 device is a 42-V, 1.5-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 116 μA. Using the enable pin reduces the shutdown supply current to 1.5 µA.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The slow-start pin, which is also configurable for sequencing or tracking, controls the output voltage start-up ramp. An open-drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.

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

The TPS57140-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD package (DGQ) and a 10-pin SON package (DRC).

产品特性

Qualified for Automotive Applications
3.5-V to 42-V Input Voltage Range
200-mΩ High-Side MOSFET
High Efficiency at Light Loads With Pulse-Skipping Eco-mode Control Scheme
116-µA Operating Quiescent Current
1.5-µA Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start and Sequencing
Undervoltage and Overvoltage Power-Good Output
Adjustable Undervoltage Lockout Voltage and Hysteresis
0.8-V Internal Voltage Reference
Supported by SwitcherPro Software Tool (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
For SWIFT Documentation, See the TI Web site at http://www.ti.com/swift
APPLICATIONS
- 12-V and 24-V Industrial and Commercial Low-Power Systems
- Aftermarket Automotive Accessories: Video, GPS, Entertainment

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