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Love tomb style 635-USB booster to 7V/9V/12V based on TPS61088

Overview

Input voltage: allowed to be between 4.8V and 9V (actually related to the threshold voltage of EN, but I did not set the relevant voltage dividing resistor, so the input voltage only needs to be lower than the output voltage and not exceed 12V)

Output voltage: default 12V output

The corresponding RT/RB resistors for 9V output are 680K/105K respectively.

7V output is 470K/97.6K

Output current: 140K corresponds to 2A, 249K corresponds to 1A, the larger the resistance, the smaller the current.

By the way, this solution is also applicable to HT7178, which is TPS61088 P2P and has a wider operating voltage range.

This plan will be updated immediately after the actual test. If there is no actual picture posted, it means that it has not been tested yet.

Please be sure to manually check the BOM generated by the system. This open source project is prohibited from commercial use/idle fish fraud.

Design Files

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Update:2025-06-09 14:22:27

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