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TPS61221

現行

具 5.5-μA 靜態電流的 0.7-VIN、3.3-V 固定輸出電壓升壓轉換器

TPS61221

現行

產品詳細資料

Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 0.7 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 0.4 Features Synchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 90
Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 0.7 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 0.4 Features Synchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000005 Duty cycle (max) (%) 90
SOT-SC70 (DCK) 6 4.2 mm² (2 mm × 2.1 mm)
  • 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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功能相同,但針腳輸出與所比較的裝置不同。
TPS61299 現行 具輸入電流限制和快速暫態性能的 95nA 靜態電流、5.5V 升壓轉換器 Lower IQ, true disconnect and higher IOUT
功能相似於所比較的產品。
TPS610981 現行 具備整合式 LDO 的低輸入電壓 3.3V 輸出電壓同步升壓轉換器 For applications requiring ultra-low Iq or smaller package.

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
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模擬型號

TPS61221 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAK2A.ZIP (79 KB) - PSpice 模型
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參考設計

TIDA-00599 — 將 LP5910 和 TPS61221 作為電源的參考設計,適用於與超低電壓 MSP430 互動的產品

MSP430X09X 可在 0.9V 至 1.65V 的超低電壓 (ULV) 範圍內工作;然而,系統中的大多數裝置需要更高的電壓。TIDA-00599 為那些需要 1.8V 和 3.3V 輸入電壓的配套裝置提供了一個解決方案。

使用 TPS61221 升壓轉換器,由 0.9V 至 1.65V 電池產生 3.3V 電壓軌;使用與升壓轉換器輸出電壓軌串聯的高 PSRR LDO (LP5910) 產生 1.8V 電壓軌。輸入電壓為 1.65V 時,組合輸出電流為 100mA;輸入電壓為 0.90V 時,組合輸出電流為 50mA。

此電源解決方案非常適合使用為 MSP430 (...)

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 6 Ultra Librarian

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