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TPS61256 - 产品图解:
TPS61256-采用芯片级封装的 3.5 MHz 高效率升压转换器 5V 输出电压
TPS61256-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 - TPS61256介绍
TPS61256 - 采用芯片级封装的 3.5 MHz 高效率升压转换器 5V 输出电压

TPS61256是TI公司的一款转换器(集成开关)产品,TPS61256是采用芯片级封装的 3.5 MHz 高效率升压转换器 5V 输出电压,本页介绍了TPS61256的产品说明、应用、特性等,并给出了与TPS61256相关的TI元器件型号供参考。

TPS61256 - 采用芯片级封装的 3.5 MHz 高效率升压转换器 5V 输出电压 - 转换器(集成开关) - DC/DC开关稳压器 - TI公司(Texas Instruments,德州仪器)

产品特性
  • 93% Efficiency at 3.5-MHz Operation
  • 21-µA Quiescent Current in Standby Mode
  • 37-µA Quiescent Current in Normal Operation
  • Wide VIN Range From 2.3 V to 5.5 V
  • VIN ≥ VOUT Operation
  • IOUT ≥ 800 mA at VOUT = 4.5 V, VIN ≥ 2.65 V
  • IOUT ≥ 1000 mA at VOUT = 5.0 V, VIN ≥ 3.3 V
  • IOUT ≥ 1500 mA (Peak) at VOUT = 5.0 V, VIN ≥ 3.3 V
  • ±2% Total DC Voltage Accuracy
  • Light-Load PFM Mode
  • Selectable Standby Mode or True Load Disconnect During Shutdown
  • Thermal Shutdown and Overload Protection
  • Only Three Surface-Mount External Components Required
  • Total Solution Size < 25 mm2
  • 9-Pin NanoFreeTM (CSP) Packaging
产品应用
  • Cell Phones, Smart Phones
  • Mono and Stereo APA Applications
  • USB Charging Ports (5V)
产品说明

The TPS6125x device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS6125x supports up to 800-mA load current from a battery discharged as low as 2.65V and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.

The TPS6125x operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 μA (typ) during light load operation.

In addition, the TPS6125x device can also maintain its output biased at the input voltage level. In this mode, the synchronous rectifier is current limited allowing external load (e.g. audio amplifier) to be powered with a restricted supply. In this mode, the quiescent current is reduced to 21 µA. During shutdown, the load is completely disconnected from the battery. Input current in shutdown mode is less than 1 µA (typ), which maximizes battery life.

The TPS6125x offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS6125xDSBGA (9)1.206 mm × 1.306 mm
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