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TPS63012-具有 2A 开关的高效率、单电感器、降压升压转换器
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TI产品 - TPS63012介绍

TPS63012 - 具有 2A 开关的高效率、单电感器、降压升压转换器

TPS63012是TI德州仪器公司的一款转换器（集成开关）产品，TPS63012是具有 2A 开关的高效率、单电感器、降压升压转换器，本站介绍了TPS63012的封装应用图解、特点和优点、功能等，并给出了与TPS63012相关的TI元器件型号供参考。

TPS63012 - 具有 2A 开关的高效率、单电感器、降压升压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS6301x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 1200 mA while using a single-cell Li-Ion or Li-Polymer Battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save mode to maintain high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 2200 mA. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 20-pin WCSP package measuring 2.126 mm × 1.922 mm (YFF).

产品特性

  • Up to 96% Efficiency
  • 1200-mA Output Current at 3.3 V in Step Down Mode (VIN = 3.6 V to 5.5 V)
  • Up to 800-mA Output Current at 3.3 V in Boost Mode (VIN > 2.4 V)
  • Automatic Transition between Step Down and Boost Mode
  • Device Quiescent Current less than 50µA
  • Input Voltage Range: 2 V to 5.5 V
  • Fixed and Adjustable Output Voltage Options from 1.2 V to 5.5 V
  • Power Save Mode for Improved Efficiency at Low Output Power
  • Forced Fixed Frequency Operation and Synchronization possible
  • Load Disconnect During Shutdown
  • Output Overvoltage Protection
  • Overtemperature Protection
  • Available in Small 20 pin 2.126 mm x 1.922 mm, WCSP Package

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