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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS62261-Q1

現行

具 1.8V 固定輸出電壓的車用 2V 至 6V、2.25MHz 固定頻率 600mA 降壓轉換器

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產品規格表

TPS62261-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 105 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2 Vin (max) (V) 6 Switching frequency (min) (kHz) 2250 Switching frequency (max) (kHz) 2250 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.8 Vout (max) (V) 1.8 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
Rating Automotive Operating temperature range (°C) -40 to 105 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2 Vin (max) (V) 6 Switching frequency (min) (kHz) 2250 Switching frequency (max) (kHz) 2250 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.8 Vout (max) (V) 1.8 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
WSON (DRV) 6 4 mm² 2 x 2
  • Qualified for Automotive Applications
  • High-Efficiency Step-Down Converter
  • Output Current up to 600 mA
  • Wide VIN Range from 2-V to 6-V for Li-Ion Batteries with
    Extended Voltage Range
  • 2.25-MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±1.5%
  • 15-µA (Typ) Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Soft Start
  • Voltage Positioning at Light Loads
  • Available in a Small 2×2×0,8-mm SON Package
  • Allows <1-mm Solution Height
  • APPLICATIONS
    • PDAs, Pocket PCs
    • Low Power DSP Supply
    • Portable Media Players
    • POL applications
  • Qualified for Automotive Applications
  • High-Efficiency Step-Down Converter
  • Output Current up to 600 mA
  • Wide VIN Range from 2-V to 6-V for Li-Ion Batteries with
    Extended Voltage Range
  • 2.25-MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±1.5%
  • 15-µA (Typ) Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Soft Start
  • Voltage Positioning at Light Loads
  • Available in a Small 2×2×0,8-mm SON Package
  • Allows <1-mm Solution Height
  • APPLICATIONS
    • PDAs, Pocket PCs
    • Low Power DSP Supply
    • Portable Media Players
    • POL applications

The TPS6226x devices are high-efficiency synchronous step-down dc-dc converters optimized for battery powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power mobile phones and other portable applications.

With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, two and three cell alkaline batteries, 3.3-V and 5-V input voltage rails.

The TPS6226x operates at 2.25-MHz 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. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6226x is available in a very small 2×2mm 6-pin SON package.

The TPS6226x devices are high-efficiency synchronous step-down dc-dc converters optimized for battery powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power mobile phones and other portable applications.

With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, two and three cell alkaline batteries, 3.3-V and 5-V input voltage rails.

The TPS6226x operates at 2.25-MHz 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. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6226x is available in a very small 2×2mm 6-pin SON package.
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TPS62260-Q1 現行 採用 2x2mm SON/TSOT23 封裝的車用 2V 至 6V、2.25MHz 固定頻率 600mA 降壓轉換器 Family devices, same pin out with different output voltage

技術文件

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類型 標題 日期
* Data sheet TPS6226x-Q1 2.25-MHz 600-mA Step-Down Converter datasheet (Rev. C) 2012年 7月 23日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6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
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
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

TPS62261 TINA-TI Reference Design

SLVM115.TSC (119 KB) - TINA-TI Reference Design
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模擬型號

TPS62261 TINA-TI Transient Reference Design

SLVM251.TSC (119 KB) - TINA-TI Reference Design
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模擬型號

TPS62261 TINA-TI Transient Spice Model

SLVM114.ZIP (26 KB) - TINA-TI Spice Model
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模擬型號

TPS62261 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM049A.ZIP (36 KB) - PSpice Model
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參考設計

TIDA-01003 — 採用 YUV422、FPD-Link III 和 4V-36V 同軸電纜供電技術的車用 100 萬像素攝影機模組參考設計

The automotive 1MP camera module reference design uses a CMOS imager to provide multiple uncompressed video formats over FPD-Link III. Supported video formats are 8- and 10-bit YUV422. TIs FPD-Link III SerDes technology enables the transmission of video data, bidirectional control signals and (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00803 — 適用於前置攝影機系統且採用單核電壓應用處理器的車用電源設計

This reference design provides a broadly-applicable automotive power design for a variety of ADAS processors, focusing on front and rear camera applications. The design supports an input range of 4 V to 48 V to supply common processor power rails through discrete components.  This adds to the (...)
Design guide: PDF
電路圖: PDF
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WSON (DRV) 6 Ultra Librarian
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