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TPS61090-2A 开关、96% 高效升压转换器
TPS61090-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 - TPS61090介绍

TPS61090 - 2A 开关、96% 高效升压转换器

TPS61090是TI德州仪器公司的一款转换器（集成开关）产品，TPS61090是2A 开关、96% 高效升压转换器，本站介绍了TPS61090的封装应用图解、特点和优点、功能等，并给出了与TPS61090相关的TI元器件型号供参考。

TPS61090 - 2A 开关、96% 高效升压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • Synchronous (96% Efficient) Boost Converter With 500-mA Output Current From 1.8-V Input
  • Available in a 16-Pin VQFN 4 x 4 Package
  • Device Quiescent Current: 20 µA (Typ)
  • Input Voltage Range: 1.8 V to 5.5 V
  • Adjustable Output Voltage Up to 5.5 V Fixed Output Voltage Options
  • Power Save Mode for Improved Efficiency at Low Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection
产品应用
  • All Single Cell Li or Dual Cell Battery or USB Powered Operated Products
    • MP3 Player
    • PDAs
    • Other Portable Equipment
产品说明

The TPS6109x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or a two-cell alkaline, NiCd or NiMH battery and required supply currents up to or higher than 1 A. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 0.5 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible. The maximum peak current in the boost switch is limited to a value of 2500 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.

The output voltage can be programmed by an external resistor divider or is fixed internally on the chip.

The device is packaged in a 16-pin VQFN 4-mm x 4-mm (16 RSA) package.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS61090VQFN (10)4.00 mm × 4.00 mm
TPS61091
TPS61092
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