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DC/DC 轉換器

TPS63805

現行

具有小型解決方案尺寸的 2-A、高效率、11-µA 靜態電流降壓-升壓轉換器

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產品規格表

TPS63805

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) 1.3 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Switch current limit (typ) (A) 5 Features Enable, Light-load efficiency, Load Disconnect, Power good, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000011 Duty cycle (max) (%) 100
Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 1.3 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Switch current limit (typ) (A) 5 Features Enable, Light-load efficiency, Load Disconnect, Power good, Prebias startup, Synchronous rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000011 Duty cycle (max) (%) 100
DSBGA (YFF) 15 3.08000000000000022 mm² (— mm × — mm)
  • Three pin-to-pin device options: TPS63805, TPS63806, and TPS63807 with specific application focus
  • Input voltage range: 1.3 V to 5.5 V
    • Device input voltage > 1.8 V for start-up
  • Output voltage range: 1.8 V to 5.2 V (adjustable)
  • High efficiency over the entire load range
    • Power save mode and mode selection for forced PWM-mode
  • Peak current buck-boost mode architecture
    • Defined transition points between buck, buck-boost, and boost operation modes
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature- and overvoltage-protection
    • True shutdown function with load disconnect
    • Forward and backward current limit
  • TPS63805
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
  • TPS63806
    • Optimized for best load step response (180-mV load-step response at a 2 A current step)
    • Up to 2.5-A transient output current
    • 13-µA operating quiescent current
  • TPS63807
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
    • Output discharge feature when EN is low
    • 480-µs Tramp for small inrush current during start-up
  • Three pin-to-pin device options: TPS63805, TPS63806, and TPS63807 with specific application focus
  • Input voltage range: 1.3 V to 5.5 V
    • Device input voltage > 1.8 V for start-up
  • Output voltage range: 1.8 V to 5.2 V (adjustable)
  • High efficiency over the entire load range
    • Power save mode and mode selection for forced PWM-mode
  • Peak current buck-boost mode architecture
    • Defined transition points between buck, buck-boost, and boost operation modes
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature- and overvoltage-protection
    • True shutdown function with load disconnect
    • Forward and backward current limit
  • TPS63805
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
  • TPS63806
    • Optimized for best load step response (180-mV load-step response at a 2 A current step)
    • Up to 2.5-A transient output current
    • 13-µA operating quiescent current
  • TPS63807
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
    • Output discharge feature when EN is low
    • 480-µs Tramp for small inrush current during start-up

The TPS63805, TPS63806, and TPS63807 are high efficiency, high output current buck-boost converters. 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 TPS63805, TPS63806, and TPS63807 are high efficiency, high output current buck-boost converters. 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.

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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 TPS631000 is a newer version 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 TPS6380x High-Efficiency, Low IQ Buck-Boost Converter with Small Solution Size datasheet (Rev. E) PDF | HTML 2021/8/26
應用說明 Using TPS63805 for Extreme Low Ripple in Optical Module PDF | HTML 2021/10/27
設計指南 TEC Driver Reference Design for 3.3-V Inputs (Rev. A) 2021/8/6
應用說明 Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. D) 2021/8/4
應用說明 Supercapacitor Backup Power Supply w/ Current Limit for Smart Electricity Meter (Rev. A) 2021/8/3
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
技術文章 Is there a universal tool for DC/DC voltage conversion? PDF | HTML 2019/9/30
應用說明 Improving Load Transient Response for Controlled Loads 2019/9/12
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
應用說明 Selecting the right DC/DC converter for maximum battery life 2019/2/8
Application brief Supercapacitor backup power supply with TPS63802 2019/1/21
應用說明 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
應用說明 Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018/9/19
應用說明 Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 2018/7/9
應用說明 Extending the Soft Start Time in the TPS63010 Buck-Boost Converter 2012/12/5
類比設計期刊 Design considerations for a resistive feedback divider in a DC/DC converter 2012/4/26
應用說明 Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011/9/19
類比設計期刊 IQ: What it is, what it isn’t, and how to use it 2011/6/17

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS63805EVM-026 — 高電流、高效率降壓-升壓轉換器評估模組

TPS63805EVM-026 的設計旨在幫助使用者輕鬆評估及測試 TPS63805 降壓升壓轉換器的運作及功能。EVM 的輸入電壓運作範圍為 1.3-V 至 5.5-V。在降壓模式及升壓模式中，輸出電流可高達 2A。使用者可輕鬆評估 TPS63805 的不同功能，如精密裝置啟用。TPS63805 採用小型 2.3 x 1.4 mm² WCSP 封裝。
使用指南: PDF
支援產品和硬體
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支援軟體

TIDCFU0 — TIDA-050017 TEC Driver Software Example

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模擬型號

TPS63805 Unencrypted PSpice Transient Model Package (Rev. B)

SLVMCQ6B.ZIP (50 KB) - PSpice 模型
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計算工具

SLVC808 — Battery Lifetime Estimator

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參考設計

TIDA-050017 — 用於 3.3V 輸入的 TEC 驅動器參考設計

許多電子元件都需要對溫度進行調節，以獲得最佳性能並延長使用壽命。對於某些應用而言，如光學模組中的雷射二極體，精確的溫度控制至 0.1°C 至關重要，因為即使溫度變化 1°C 也可能導致雷射波長漂移 0.1nm。

採用帕爾帖效應的熱電冷卻 (TEC) 裝置可用於這類應用的溫度控制。電流流過 TEC 的方向決定了它是被加熱還是被冷卻。本設計指南示範如何使用 TI 的低靜態電流 (11µA) 降壓升壓轉換器 (TPS63802) 搭配微控制器 (MSP430FR2433) 來實作 TEC 驅動器，以精確調節敏感裝置的溫度。

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DSBGA (YFF) 15 Ultra Librarian
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