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TPS54335-1A - 产品图解：
TPS54335-1A-采用 DRC 封装且具有 Eco-Mode 的 4.5V 至 28V 输入、3A 同步降压转换器
TPS54335-1A-转换器（集成开关）-DC/DC开关稳压器-电源管理
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TI产品 - TPS54335-1A介绍

TPS54335-1A - 采用 DRC 封装且具有 Eco-Mode 的 4.5V 至 28V 输入、3A 同步降压转换器

TPS54335-1A是TI德州仪器公司的一款转换器（集成开关）产品，TPS54335-1A是采用 DRC 封装且具有 Eco-Mode 的 4.5V 至 28V 输入、3A 同步降压转换器，本站介绍了TPS54335-1A的封装应用图解、特点和优点、功能等，并给出了与TPS54335-1A相关的TI元器件型号供参考。

TPS54335-1A - 采用 DRC 封装且具有 Eco-Mode 的 4.5V 至 28V 输入、3A 同步降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • Synchronous 128-mΩ and 84-mΩ MOSFETs for 3-A Continuous Output Current
  • TPS54335A: Internal 2-ms Soft-Start, 50-kHz to 1.5-MHz Adjustable Frequency
  • TPS54336A: Adjustable Soft-Start,Fixed 340-kHz Frequency
  • Low 2-µA Shutdown, Quiescent Current
  • 0.8-V Voltage Reference with ±0.8% Accuracy
  • Current Mode Control
  • Monotonic Startup into Pre-Biased Outputs
  • Pulse Skipping for Light-Load Efficiency
  • Hiccup Mode Overcurrent Protection
  • Thermal Shutdown (TSD) and Overvoltage Transition Protection
  • 8-Pin SO PowerPAD™ and 10-Pin VSON Packages
产品应用
  • Consumer Applications such as a Digital TV (DTV), Set Top Box (STB, DVD/Blu-ray Player), LCD Display, CPE (Cable Modem, WiFi Router), DLP Projectors, Smart Meters
  • Battery Chargers
  • Industrial and Car Audio Power Supplies
  • 5-V, 12-V, and 24-V Distributed Power Bus Supply
产品说明

The TPS5433xA family of devices are synchronous converters with an input-voltage range of 4.5 to 28 V. These devices include an integrated low-side switching FET that eliminates the need for an external diode which reduces component count.

Efficiency is maximized through the integrated 128-mΩ and 84-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well-regulated voltage reference that is 1.5% over temperature.

Cycle-by-cycle current limiting on the high-side MOSFET protects the TPS5433xA family of devices in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS54335A TPS54336ASO PowerPAD (8)4.89 mm × 3.90 mm
VSON (10)3.00 mm × 3.00 mm
TPS54335-1AVSON (10)(2)3.00 mm × 3.00 mm
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