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  • TPS61221: CR2025 to 3.3V converter

    TI Thinks Resolved
    Part Number: TPS61221 Other Parts Discussed in Thread: TPS61261 Hello urgent help required I have designed a power supply using TPS61221 Booster IC, Input supply is 3V and required output voltage is 3.3V , 7mA. CR2025 coin cell is used to drive circuit,…

  • TPS61221: ORing circuit (LTC4412) with two inputs 3.3V (battery) and 5V (from USB input) followed by TPS61221.

    TI Thinks Resolved
    Part Number: TPS61221 Other Parts Discussed in Thread: TPS63031 , TPS61220 Hi, am using diode ORing circuit before TPS61221. so TPS61221 has input either 3.3V (battery) or 5V(USB). is it ok to operate TPS61221 with USB voltage? do you see any potential…

  • TPS61221: TPS61221 Coin Cell Battery operation

    TI Thinks Resolved
    Part Number: TPS61221 Hi, We are planning to use the TPS61221 as the Boast voltage regulator for 3.3V. Here the input voltage is coming from non-rechargeable battery coin cell battery(CR2032R) and it varies the input voltage is 3v to 1.2v during its…

  • TPS61221: The output negative voltage.

    TI Thinks Resolved
    Part Number: TPS61221 Other Parts Discussed in Thread: LMR70503 , TPS62745 Hi team, Could you give me your advice about the output negative voltage? My customer wants to output 3.3V negative voltage with 3.3V input. The output current is very low(Around 1mA…
    • Answered

  • TPS61221: Tina spice model for TPS61221DCKR is crypted

    Resolved
    Part Number: TPS61221 Hello, I'm using Tina for simulated my circuit. I taked the spice model on TI site here: http://www.ti.com/product/TPS61221/toolssoftware But it seems to be encrypted, some know how to decrypt it. soun
    • Resolved

  • TPS61221: Extending soft-start/limiting inrush current for TPS61221

    Part Number: TPS61221 Other Parts Discussed in Thread: TPS61291 Hello, We have a small, low-power device with a sub-1GHz transceiver and MCU (CC430F5xxx series), where power is supplied from a coin cell (CR2032 and/or CR2450) battery. The device sleeps…

  • TPS61221: TPS61221 drawing large current while not connecting to any load.

    TI Thinks Resolved
    Part Number: TPS61221 Hi there, I designed a PCB board for TPS61221 according to the datasheet. It successfully delivery 3.3V at Vout. The circuit is as below. However, I found that while no load at the output. The I in (input current) is about 6…

  • TPS61221: Maximum Output Current Issue

    TI Thinks Resolved
    Part Number: TPS61221 Other Parts Discussed in Thread: TPS61220 , TPS61220EVM-319 Hi, I'm trying to incorporated a TPS61221 boost regulator with a fixed 3.3 V output into an embedded design to keep the supply voltage above 3 V as the battery drains. My…
    • Answered

  • TPS61221: Vout not equal to Vin when EN pin is pulled to ground. Also, Vout ~2.8V instead of 3.3v even when EN is pulled high and load ~100mA

    Resolved
    Part Number: TPS61221 Other Parts Discussed in Thread: TPS61020 , TPS62730 , TPS61097A-33 , TPS61291 , TPS61201 Hi, Need your help. While designing a low-power circuit for driving an at328p mc and a couple of sensors attached off a 14505 LiSoCl 3.7v battery…
    • Resolved

  • TPS61221: What is the maximum output current

    TI Thinks Resolved
    Part Number: TPS61221 Other Parts Discussed in Thread: TPS61099 , TPS61021A I am a bit confused regarding the output current capabilities of the TPS61221 boost converter. Although it could be said that it is related to all similar boost converters. Is…

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