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DC/DC 轉換器

TPS63811

現行

適用於動態電壓負載，具有 I²C 介面的 2.5-A 高效降壓-升壓轉換器

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產品規格表

TPS63811

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.2 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Switch current limit (typ) (A) 5.8 Features Dynamic voltage scaling, Enable, I2C interface, Light-load efficiency, Load Disconnect, Output discharge, Power good, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000013 Duty cycle (max) (%) 100
Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.2 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Switch current limit (typ) (A) 5.8 Features Dynamic voltage scaling, Enable, I2C interface, Light-load efficiency, Load Disconnect, Output discharge, Power good, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000013 Duty cycle (max) (%) 100
DSBGA (YFF) 15 3.08000000000000022 mm² (— mm × — mm)
  • Input voltage range: 2.2 V to 5.5 V
  • Output voltage range: 1.8 V to 5.2 V
    • I2C-configurable during operation and shutdown
    • VSEL pin to toggle between two output voltage presets
  • Output current
    • Up to 2.5 A for VI ≥ 2.5 V, VO = 3.3 V
    • Up to 2.5 A for VI ≥ 2.8 V, VO = 3.5 V
  • High efficiency over entire load range
    • Low 13-µA operating quiescent current
    • Automatic power save mode and forced PWM mode (I2C-configurable)
  • Peak current mode buck-boost architecture
    • Defined transitions between buck, buck-boost and boost operation
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature and overvoltage protection
    • True load disconnect during shutdown
    • Forward and backward current limit
  • Two device options:
    • TPS63810: Pre-programmed output voltages (3.3 V, 3.45 V)
    • TPS63811: Program output voltages prior to start-up
  • Solution size of < 20 mm2 with only four external components
  • Input voltage range: 2.2 V to 5.5 V
  • Output voltage range: 1.8 V to 5.2 V
    • I2C-configurable during operation and shutdown
    • VSEL pin to toggle between two output voltage presets
  • Output current
    • Up to 2.5 A for VI ≥ 2.5 V, VO = 3.3 V
    • Up to 2.5 A for VI ≥ 2.8 V, VO = 3.5 V
  • High efficiency over entire load range
    • Low 13-µA operating quiescent current
    • Automatic power save mode and forced PWM mode (I2C-configurable)
  • Peak current mode buck-boost architecture
    • Defined transitions between buck, buck-boost and boost operation
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature and overvoltage protection
    • True load disconnect during shutdown
    • Forward and backward current limit
  • Two device options:
    • TPS63810: Pre-programmed output voltages (3.3 V, 3.45 V)
    • TPS63811: Program output voltages prior to start-up
  • Solution size of < 20 mm2 with only four external components

The TPS63810 and TPS63811 are high efficiency, high output current buck-boost converters fully programmable through I2C. Depending on the input voltage, they automatically operate in boost, buck or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage.

The transitions between modes happen at defined thresholds and avoid unwanted toggling within the modes to reduce output voltage ripple.

Two registers, accessible through I2C, set the output voltage, and a VSEL pin selects which output voltage register is active. Thus the devices can support dynamic voltage scaling. If the output voltage register is changed during operation or the VSEL pin is toggled, the device transits in a defined, programmable ramp-rate.

The TPS63810 and TPS63811 are high efficiency, high output current buck-boost converters fully programmable through I2C. Depending on the input voltage, they automatically operate in boost, buck or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage.

The transitions between modes happen at defined thresholds and avoid unwanted toggling within the modes to reduce output voltage ripple.

Two registers, accessible through I2C, set the output voltage, and a VSEL pin selects which output voltage register is active. Thus the devices can support dynamic voltage scaling. If the output voltage register is changed during operation or the VSEL pin is toggled, the device transits in a defined, programmable ramp-rate.
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TPS631010 現行 3-A 尖峰電流高效率超小型解決方案尺寸降壓升壓轉換器 Upgraded product with 8-µA IQ and smaller WCSP package
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TPS631000 現行 1.5-A 輸出電流、高功率密度降壓升壓轉換器 Upgraded product with 8-uA IQ and smaller SOT package.

技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS63810 and TPS63811 – 2.5-A Buck-Boost Converters with I2C Interface datasheet (Rev. C) PDF | HTML 2020/2/20
應用說明 Selecting a DC/DC Converter for Maximum Battery Life in Pulsed-Load Applications (Rev. A) 2021/7/26
應用說明 A Topical Index of TI Low-Power Buck-Boost Converter Application Notes (Rev. A) PDF | HTML 2021/6/9
應用說明 Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML 2021/6/9
證書 TPS63811EVM EU Declaration of Conformity (DoC) 2020/4/17
Application brief Improve Efficiency in TWS Earbuds with Buck-Boost Converter 2019/9/18
應用說明 Using Non-Inverting Buck-Boost Converter for Voltage Stabilization 2019/8/1
Application brief Buck-boost Converter Battery Life Time Estimation for Wireless Network Cameras (Rev. A) 2019/5/28
Application brief Buck-Boost Converters Solving Power Challenges in Optical Modules 2019/5/13
Application brief Precise Delayed Start-up with Precise Threshold Enable-pin 2019/4/15
Application brief Prevent Battery Overdischarge with Precise Threshold Enable Pin 2019/4/2
Application brief Supercapacitor backup power supply with TPS63802 2019/1/21
應用說明 Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 2018/7/9

設計與開發

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開發板

TPS63811EVM — TPS63811 高效、高輸出電流、I²C 控制、降壓-升壓轉換器 EVM

TPS63811EVM 的設計旨在幫助使用者輕鬆評估及測試 TPS63811 降壓升壓轉換器的運作及功能。EVM 可在 2.2V 和 5.5V 之間的輸入電壓運作，並可在 1.825V 至 5V 之間輸出電壓，在降壓模式下輸出電流高達 2.5A ，在升壓模式下輸出電流高達 2A。輸出電壓、省電模式、電壓轉換率和電壓上升模式等參數，可透過 I²C 介面進行編程。
使用指南: PDF
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開發模組 (EVM) 的 GUI

SLVC782 — TPS6381xEVM GUI Windows

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開發模組 (EVM) 的 GUI

SLVC783 — TPS6381xEVM GUI Linux

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開發模組 (EVM) 的 GUI

SLVC784 — TPS6381xEVM GUI Mac

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計算工具

SLVC808 — Battery Lifetime Estimator

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DSBGA (YFF) 15 Ultra Librarian
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