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TPS62250

現行

2.25MHz、1A 峰值電流限制降壓轉換器

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產品規格表

TPS62250

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 0.7 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 6 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 0.7 Vin (max) (V) 6 Vin (min) (V) 2 Vout (max) (V) 6 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
WSON (DRV) 6 4 mm² 2 x 2
  • High Efficiency Step Down Converter
  • Max Peak Current Limit of 1A, Ideal for USB Powered Applications
  • VIN Range Optimized for USB from 2V to 6V
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM mode ±1.5%
  • Typ. 15 µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Soft Start
  • Voltage Positioning at Light Loads
  • Available in a Small 2×2×0,8mm SON package
  • Allows <1mm Solution Height
  • APPLICATIONS
    • Portable USB Peripherals
    • Wireless Modem Applications
    • USB PCTV Applications
  • High Efficiency Step Down Converter
  • Max Peak Current Limit of 1A, Ideal for USB Powered Applications
  • VIN Range Optimized for USB from 2V to 6V
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM mode ±1.5%
  • Typ. 15 µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Soft Start
  • Voltage Positioning at Light Loads
  • Available in a Small 2×2×0,8mm SON package
  • Allows <1mm Solution Height
  • APPLICATIONS
    • Portable USB Peripherals
    • Wireless Modem Applications
    • USB PCTV Applications

The TPS62250 device is a high efficient synchronous step down dc-dc converter optimized for USB powered applications. It provides up to 1A peak output current and limits the average input current to 700mA, making it ideal for applications connected to a USB host. With an wide input voltage range of 2V to 6V, the device supports applications powered by the USB host as well as general applications requiring large output capacitors.

The TPS62250 operates at 2.25MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.

The Power Save Mode is optimized for low output voltage ripple.

The TPS62250 is available in a very small 2×2 6 pin SON package.

The TPS62250 device is a high efficient synchronous step down dc-dc converter optimized for USB powered applications. It provides up to 1A peak output current and limits the average input current to 700mA, making it ideal for applications connected to a USB host. With an wide input voltage range of 2V to 6V, the device supports applications powered by the USB host as well as general applications requiring large output capacitors.

The TPS62250 operates at 2.25MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.

The Power Save Mode is optimized for low output voltage ripple.

The TPS62250 is available in a very small 2×2 6 pin SON package.
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TPS62750 現行 具可編程輸入電流限制的 2.25MHz 降壓轉換器，適用 USB 供電應用 Adjustable input current limit

技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet Peak Current Limited Step Down Converter for USB Applications datasheet 2008年 9月 17日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 2019年 6月 14日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016年 10月 24日
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015年 8月 17日
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015年 1月 29日
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012年 4月 26日
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012年 1月 13日
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011年 6月 17日

設計與開發

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模擬型號

TPS62250 PSpice Transient Model

SLIM142.ZIP (45 KB) - PSpice Model
下載
模擬型號

TPS62250 TINA-TI Transient Model

SLIM328.ZIP (25 KB) - TINA-TI Spice Model
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模擬型號

TPS62250 TINA-TI Transient Reference Design

SLIM327.TSC (108 KB) - TINA-TI Reference Design
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計算工具

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
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