Tps7A57 Ldo Operation; Figure 2-1. Tps7A57Evm-056 Turn On - Texas Instruments TPS7A57EVM-056 User Manual

Evaluation module

Table of Contents

www.ti.com

2.3 TPS7A57 LDO Operation

The TPS7A57EVM-056 evaluation module contains the TPS7A57 low-dropout regulator (LDO) with input and

output capacitors installed. Additional pads are available to test the LDO with additional input and output

capacitors beyond what is already installed on the EVM. The TPS7A57 LDO can be enabled or disabled by

using the J4 3-pin header.

1. Placing a 2-pin shunt across the header to tie VIN to EN enables the device

2. Placing a 2-pin shunt across the header to tie GND to EN, or leaving the 3-pin header floating, disables the

device

3. Placing a 2-pin shunt across the header to tie GND to CP_EN disables the internal charge pump

Alternatively, by connecting an external function generator to TP2 (EN) and a nearby GND, the user can enable

or disable the TPS7A57 LDO after VIN is applied.

turn-on. The blue trace is the enable voltage and the pink trace is the output voltage.

SBVU075 – APRIL 2022

Submit Document Feedback

Figure 2-1

shows the result of the TPS7A57EVM-056 during

TPS7A57EVM-056 Evaluation Module

Setup

Table of Contents

Do you have a question about the TPS7A57EVM-056 and is the answer not in the manual?