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TPS61291DRVR

IC REG BOOST PROG 0.7A SYNC 6SON

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TPS61291DRVR

IC REG BOOST PROG 0.7A SYNC 6SON

訂單滿$200即可獲贈限量版中式禮品一份.

訂單滿$200即可獲贈限量版中式禮品一份.

訂單金額超過1000 美元可減免30 美元運費.

超過5000 美元的訂單可免運費和交易費.

這些優惠適用於新客戶和現有客戶,有效期為2024年1月1日至2024年12月31日.

  • 製造商:

    TI

  • 規格書:

    TPS61291DRVR datasheet

  • 包裝/箱:

    WSON-6

  • 產品分類:

    電源管理Ics

  • RoHS Status: RoHS 狀態 Lead free/RoHS Compliant

現在提交您的報價請求,我們期望在 10月 16, 2024內提供報價。現在就下訂單,我們期望在 10月 21, 2024內完成交易。時間是格林威治標準時間+8:00。

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TPS61291DRVR 產品詳情

1 Features

• Input Voltage Range 0.9V to 5V

• Startup Voltage 1.5V at 20mA Load

• Pin Selectable Output Voltages: 3.3V, 3V, 2.5V

• 15nA typical Quiescent Current in Bypass Mode

• 5.7μA typical Quiescent Current in Boost Mode

• Bypass Switch from VIN to VOUT

• IOUT > 200mA at 3.3V VOUT, VIN = 1.8V

• Internal Feedback Divider Disconnect (Bypass Mode)

• Controlled Bypass Transition Prevents Reverse Current into Battery

• Power-Save Mode at Light Loads

• Overtemperature Protection

• Redundant Overvoltage Protection

• Small 2mm x 2mm SON 6-pin package


2 Applications

• Metering (Gas, Water, Smart Meters)

• Remote Controls

• Home Security / Home Automation

• Single 3V Li-MnO2 or 2 x 1.5V Alkaline Cell Powered Applications


3 Description

The TPS61291 is a boost converter with pin selectable output voltages and an integrated bypass mode. In bypass operation, the device provides a direct path from the input to the system and allows a low power micro controller (MCU) such as the MSP430 to operate directly from a single 3V Li-MnO2 battery or dual alkaline battery cells.


In bypass mode the integrated feedback divider network for boost mode operation is disconnected from the output and the quiescent current consumption drops down to only 15nA (typical).


In boost mode the device provides a minimum output current of 200mA at 3.3V VOUT from 1.8V VIN. The boost mode is used for system components which require a regulated supply voltage and cannot directly operate from the input source. The boost converter is based on a current-mode controller using synchronous rectification to obtain maximum efficiency and consumes typically 5.7uA from the output. During startup of the boost converter, theVSEL pin is read out and the integrated feedback network sets the output voltage to 2.5V, 3V or 3.3V.


Bypass mode or boost mode operation is controlled by the system via the EN/BYP pin. The device integrates an enhanced bypass mode

control to prevent charge, stored in the output capacitor during boost mode operation, from flowing back to the input and charging the battery.


The device is packaged in a small 6-pin SON package (DRV) measuring 2.0mm × 2.0mm x 0.75mm.

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