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이 혜택은 신규 고객과 기존 고객 모두에게 적용되며 2024년 1월 1일부터 2024년 12월 31일까지 유효합니다..

  • 제조업체:


  • 데이터 시트:

    TPS61291DRVR datasheet

  • 패키지/케이스:


  • 제품 카테고리:

    전원 관리 IC

  • RoHS Status: RoHS 상태 Lead free/RoHS Compliant

지금 견적 요청을 제출하시면 1년 이내에 견적을 제공해 드릴 예정입니다. 5월 31, 2024. 지금 주문하시면 이내에 거래가 완료될 것으로 예상됩니다. 6월 05, 2024. Ps:시간은 GMT+8:00 기준입니다.

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재고:9000 PCS

우리의 약속은 12시간 이내에 신속한 견적을 제공하는 것입니다. 추가 지원이 필요하시면 다음 주소로 문의해 주세요. sales@censtry.com.

TPS61291DRVR 제품 세부 정보

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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