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TPS62351的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:直流/直流开关稳压器 - 降压稳压器
  • 功能描述:具有 I2C 用于动态电压调节的 1A、3MHz 降压转换器
  • 点击这里打开及下载TPS62351的技术文档资料
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TPS62351的产品详情:

The TPS6235x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6235x supports up to 800-mA load current and allows the use of small, low cost inductors and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. With an output voltage range adjustable via I2C interface down to 0.6 V, the device supports low-voltage DSPs and processors core power supplies in smart-phones, PDAs, and handheld computers.

The TPS6235x operates at 3-MHz fixed switching frequency and enters the efficiency optimized power-save mode operation at light load currents to maintain high efficiency over the entire load current range. In the shutdown mode, the current consumption is reduced to less than 2 µA.

The serial interface is compatible with Fast/Standard and High-Speed mode I2C specification allowing transfers at up to 3.4 Mbps. This communication interface is used for dynamic voltage scaling with voltage steps down to 12.5 mV, for reprogramming the mode of operation (Light PFM, Fast PFM or Forced PWM) or disable/enabling the output voltage.

TPS62351的优势和特性:
  • 88% Efficiency at 3-MHz Operation
  • 800-mA Output Current at VI = 2.7 V
  • 3-MHz Fixed Frequency Operation
  • Best in Class Load and Line Transient
  • Complete 1-mm Component Profile Solution
  • ±2% PWM DC Voltage Accuracy
  • 35-ns Minimum On-Time
  • Efficiency Optimized Power-Save Mode (Light PFM)
  • Transient Optimized Power-Save Mode (Fast PFM)
  • 28-μA Typical Quiescent Current
  • I2C Compatible Interface up to 3.4 Mbps
  • Pin-Selectable Output Voltage
  • Synchronizable On the Fly to External Clock Signal
  • Available in a 10-Pin QFN (3 × 3 mm) and 12-Pin NanoFree? (CSP) Packaging
  • APPLICATIONS
    • SmartReflex? Compliant Power Supply
    • Split Supply DSPs and μP Solutions OMAP?, XSCALE?
    • Cell Phones, Smart-Phones
    • PDAs, Pocket PCs
    • Digital Cameras
    • Micro DC-DC Converter Modules

NanoFree, SmartReflex, OMAP, PowerPAD Is a trademark of Texas Instruments. XSCALE is a trademark of Intel Corporation. I2C is a trademark of Philips Corporation.

TPS62351的参数(英文):
  • Vin (Min) (V)
  • 2.7
  • Vin (Max) (V)
  • 5.5
  • Vout (Min) (V)
  • 0.9
  • Vout (Max) (V)
  • 1.6875
  • Iout (Max) (A)
  • 0.8
  • Iq (Typ) (uA)
  • 28
  • Switching frequency (Min) (kHz)
  • 2650
  • Switching frequency (Max) (kHz)
  • 3350
  • Features
  • Enable, Frequency Synchronization, I2C/PMBus, Light Load Efficiency, Output Discharge, Synchronous Rectification, Adaptive/Dynamic Voltage Scaling
  • Rating
  • Catalog
  • Regulated outputs (#)
  • 1
  • Control mode
  • Voltage Mode
  • Duty cycle (Max) (%)
  • 80
TPS62351具体的完整产品型号参数及价格(美元):

TPS62351的完整型号有:TPS62351DRCR,以下是这些产品的关键参数及官网采购报价:

TPS62351DRCR,工作温度:-40 to 85,封装:VSON (DRC)-10,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS62351DRCR的批量USD价格:.571(1000+)

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TPS62351的评估套件:

TPS62351EVM-122 — TPS62351EVM-122 Evaluation Module

Anevaluation tool for the Texas Instruments TPS62351 800mA, 3MHz, synchronous, step down converter with I²C™ interface.

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