This module adopts the TPS63020 voltage boosting chip, offering low output ripple and stable performance with a switching frequency of up to 2.4MHz. It provides an output current greater than 900mA (no need for heat dissipation at room temperature) and is available in multiple output versions: 3.3V, 4.2V, and 5V. This makes it ideal for powering various 3.3V and 5V single-chip microcontrollers, such as STM32, ESP32, and 51 microcontrollers, using lithium batteries or USB.

The module features a typical buck-boost structure with an input voltage range of 1.8-5.5V. The output current can meet the power supply needs of various models, including STM32, ESP32, and 51 microcontrollers. It defaults to power-saving mode to increase the battery life of input devices like batteries.

Module Type: Buck-Boost Power Supply
Input Voltage: DC 1.8-5.5V
Output Current: [email protected] / [email protected] / 5V@1A (at 3.7V input)
Output Voltage: DC 3.3V / 4.2V / 5V
Switching Frequency: ~2.4MHz
Static Power Consumption: Working Mode: High Performance / Power-Saving Mode

Adjustment Method: Jumper pad selection for 3.3V, 4.2V, or 5V
Module Interface: Large area solder pads (compatible with 2.54mm pin arrangement)
Module Size: 17.4 x 26.2mm (manually measured, slight deviation may occur)

VIN: Power input positive pole (1.8-5.5V)
GND: Input/output negative pole (shared)
VOUT: Power output terminal (3.3V / 4.2V / 5V)
PS: Short circuit pad to enable high-performance mode
EN: Enable pin (low-level disable)
Voltage Jumper Pad: Short circuit to select corresponding voltage; do not short-circuit multiple pads simultaneously

Benefits:
- Low output ripple and stable performance
- High efficiency and extended battery life
- Multiple output voltage options
- Easy to use and integrate into various projects