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  • TPS7A57: PSRR TPS7A57

    TI Thinks Resolved
    Part Number: TPS7A57 Hi, The data sheet does not have plot for PSRR with different VIN like 1.8V, 2.5V, 3.3V. What is the PSRR vs frequency at VBIAS of 3.3V VIN 1.8V Output of 0.9V Current: 1.5A What is the PSRR vs frequency at: VBIAS 3.3V VIN 2.5…

  • TPS7A57: VOLTAGE MARGINING: AD5676ARUZ DAC

    TI Thinks Resolved
    Part Number: TPS7A57 Other Parts Discussed in Thread: DAC63204 Hi, We need to do voltage margining of TPS7A57 LDO output. We are using AD5676ARUZ DAC for voltage margining. Can you please guide in margining and how to calculate series resistor. As we are…
    • Answered

  • RE: TPS7A57: Enable Pin Voltage

    Resolved
    Thanks for the confirmation, Stephen. I will mark this issue as resolved.

  • TPS7A57: Design Implementation Issue

    TI Thinks Resolved
    Part Number: TPS7A57 Hello, I am using a TPS7A5701RTER on a new board and it will not power on. Here is the pinout and how I have it setup. Pin 1, 2, 3, 4, 5, and 16 - Tied to 3V8 with 22uF decoupling cap. Pin 7 - Pulled down with a 65.5k resistor to…
    • Answered

  • TPS7A57: Can the output voltage of the LDO part number TPS7A5701RTER be set to either 2.2V, 2.1V or 2V?

    Resolved
    Part Number: TPS7A57 Hi, I am planning to use the TPS7A5701RTER as an RF supply voltage for a new board design. For my board I an using VIN and VBIAS = 5V and I want to be able to set the output voltage to 2.2V, 2.1V or 2.0V by adjusting the resistor connected…
    • Resolved

  • RE: TPS7A57: FloTHERM model for TPS7A5701RTER

    Thank you for providing the simulation model. We are currently proceeding with verification using the simulation model you provided. In order to confirm operation in our environment, we are trying to confirm the reproducibility of 6.4 Thermal Information…
    • Answered

  • TPS7A57: Package marking check

    Resolved
    Part Number: TPS7A57 Other Parts Discussed in Thread: TPS56C215 Hi Team Could you provide the marking information about TPS7A5701RTER? Accton side need to use the information for our manufactory. Below is TPS56C215 example. BRs Brian
    • Resolved
    • Answered

  • TPS7A57: Unexpected sine wave at the output

    Resolved
    Part Number: TPS7A57 Other Parts Discussed in Thread: LMS3635-Q1 , LM1084 Hi! I'm using TPS7A5701 chip in compination with LMS3635-Q1 DC-DC. The idea was to create a voltage follower with clean output. The problem is that I see a sine wave with the frequency…
    • Resolved

  • RE: TPS7A57: Simulation error after 1.2V output.

    Hi Edgar, Using the Rref is a nice to have to set the nominal output of the LDO before the DAC EEPROM is programmed. The DAC POR value will be pull high at 3.3V setting the reference too high. We have a jumper to disconnect the DAC connection, but I don…

  • TPS7A57: BIAS PIN VOLTAGE RANGE

    TI Thinks Resolved
    Part Number: TPS7A57 Hi, We are using TPS7A5701RTER for 3.3V to 1.8V, 1.5V to 1.1V, 1.5V to 0.9V, 3.3V to 2.5V, 5V to 1.8V conversion. For BIAS pin, if input voltage is less than 1.1V, bias voltage needs to provided. If not we can leave the BIAS pin open…

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