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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS61222

現行

具 5.5-μA 靜態電流的 0.7-VIN、5-V 固定輸出電壓升壓轉換器

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產品規格表

TPS61222

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 0.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2000 Features Synchronous Rectification Vout (min) (V) 5 Vout (max) (V) 5 Iq (typ) (µA) 5 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 0.4
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 0.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2000 Features Synchronous Rectification Vout (min) (V) 5 Vout (max) (V) 5 Iq (typ) (µA) 5 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 0.4
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1
  • Up to 95% Efficiency at Typical Operating
    Conditions
  • 5.5 µA Quiescent Current
  • Startup Into Load at 0.7 V Input Voltage
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Pass-Through Function during Shutdown
  • Minimum Switching Current 200 mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Adjustable Output Voltage from 1.8 V to 6 V
  • Fixed Output Voltage Versions
  • Small 6-pin SC-70 Package
  • Up to 95% Efficiency at Typical Operating
    Conditions
  • 5.5 µA Quiescent Current
  • Startup Into Load at 0.7 V Input Voltage
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Pass-Through Function during Shutdown
  • Minimum Switching Current 200 mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Adjustable Output Voltage from 1.8 V to 6 V
  • Fixed Output Voltage Versions
  • Small 6-pin SC-70 Package

The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.

The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.
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技術文件

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類型 標題 日期
* Data sheet TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5μA Quiescent Current datasheet (Rev. B) PDF | HTML 2014年 11月 11日
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 2022年 10月 28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
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
Application note Five Steps to a Good PCB Layout of the Boost Converter PDF | HTML 2016年 5月 3日
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014年 1月 22日
Application note Automated Frequency Response Analyzer 2013年 10月 9日
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012年 4月 26日
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011年 6月 17日
Application note Minimizing Ringing at the Switch Node of a Boost Converter 2006年 9月 15日

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

TPS61220EVM-319 — TPS61220EVM-319 評估模組

The TPS61220EVM-319 facilitates evaluation of the TPS61220 low input voltage boost converter.

使用指南: PDF
TI.com 無法提供
子卡

BOOSTXL-SHARP128 — Sharp® 128x128 記憶體 LCD 和 microSD 卡 TI BoosterPack™

The Sharp® 128x128 Memory LCD and microSD Card TI BoosterPack Plug-in Module is based on the LS013B7DH03 super low power TFT display panel from Sharp Electronics and also features a microSD card expansion slot. Both the LCD and SD card can be controlled using the serial peripheral interface (...)
使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS61222 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAK3A.ZIP (79 KB) - PSpice Model
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參考設計

TIDM-NFC-CE — 近場通訊 (NFC) 卡片模擬參考設計

This Near Field Communication (NFC) reference design provides a firmware example for the implementation of an NFC Card Emulation application using the TRF7970A NFC transceiver. This reference design provides a small number of easy to use Application Programming Interfaces (APIs) which allow users (...)
電路圖: PDF
參考設計

TIDM-RFID-TRANSCEIVER — RFID 收發器參考設計

This Radio Frequency Identification (RFID) reference design outlines the required components, layout considerations, and provides firmware examples to implement RFID into applications for extracting RFID data from transponders. RFID enables access control, prepayment, and inventory management. The (...)
使用指南: PDF
電路圖: PDF
參考設計

TIDM-NFC-TRANSCEIVER — 近場通訊 (NFC) 收發器參考設計

This Near Field Communications (NFC) reference design outlines the required components, layout considerations, and provides firmware examples to implement NFC into applications for extracting NFC Data Exchange Format (NDEF) data from transponders, implement a Peer-to-Peer (P2P) connection or (...)
電路圖: PDF
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SOT-SC70 (DCK) 6 Ultra Librarian
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