TPS63802 Automatic Pressure Pressure Power Module 3.3V/4.2V/5.0V USB/Lithium Battery Anti -pressure Module

This module TPS63802 lifting voltage plan, low output ripples, stable performance, switching frequency is greater than 1.4MHz, most of the output current is greater than 800mA, providing a variety of output versions of 3.3V, 4.2V and 5V, which is very suitable for various 3.3 3.3 3.3The V 5V single -chip microcomputer uses lithium batteries and USB for power supply. Similarly, the module reserves two modes: conventional working mode and power -saving mode for users to choose from.The module is a typical lifting voltage structure, and the input voltage range is 1.3-5.5V (the startup requires higher than 1.8V) output current can reach more than 1A, which meets the power supply requirements of STM32, ESP32, 51 single-chip microcomputer, and the red LED output is on the board.The indicator light supports the power saving mode to increase the battery life of the input device such as batteries.

Introduction to parameters

Module type: lifting pressure power supply

Input voltage: DC 1.3-5.5V (Started 1.8V) output current: 3.3V@1.2A /4.2V@1A /5V@1A (3.7V input) Output voltage: DC 3.3 /4.2 /5V

开关频率:>1.4MHz

Work mode: conventional/power -saving mode

Adjustment method: jump pad selection, 3.3/4.2/5V

Module interface: Large -area pad (can also be connected to 2.54mm exclusive needle)

Module size: 12.8x25.8mm (manual measurement, existing deviation)

Vin: Power input Positive Electrical Electrical Election, 1.3-5.5V (Started 1.8V)

GND: Input and output negative electrode, shared

VOUT: Power output end, 3.3/4.2/5V

PS: Short -connected pad to make power saving mode

Voltage jump pad: Short connection enables the corresponding voltage, prohibit disconnect or short connecting multiple

About output

1. The module is non -high -power design, but it is suitable for the power supply of most single -chip microcomputers. Therefore, do not exceed the limits tested below during use, especially the load current.

2. The ZUI low voltage of the module can reach 1.3V, but the output power is small when the low voltage is low. Therefore, it is not recommended to input a smaller voltage. The module starts the ZUI low. It requires 1.8V voltage. After starting, it can work above 1.3V.

3. The input voltage ZUI can be as low as 1.3V, but at this time the output power is small, so we recommend referring to the ZUI large output current under different voltage input conditions below.

4. Regarding the power -saving mode and output indicator light, because the static power consumption is still high in the existence of the indicator light, if the user needs to save the power mode and does not need the indicator light to remove the indicator light to reduce the static power consumption.

5. The user can customize the output voltage, and the short 3V3 pad outputs a 3.3V voltage. In the same way, 4V2 pad output 4.2V, prohibit short -circuit multiple pads at the same time

If the voltage you need to output is not within the range of the three jumper pads, then you can cut off the three jump pads, welded the two 0402 resistors at the ADJ position, welded with R1 bits of 0Q by default, and reserved R2 for users, The calculation formula of the corresponding output voltage is shown below

R1+ R2 = 91K*(Vout*0.5 -1)

For the load, it is not recommended to be a sensitive load with a high power. The emotional load startup current is large and easy to burn the module.

Blocks cannot provide launching current required to be burned.

Output ripple

The module output ripple test is measured to supply the power supply with 18650 batteries. Using a relatively inferior power supply will make the output ripple parameters larger. For details, please refer to the table below

Precautions

1. Do not contact the module component with a small resistance or other resistance value. The contact will cause the module to be in the normal working situation and the output voltage fluctuates significantly.

2. When a large current measurement voltage is measuring voltage, please use a shorter/thick wire for connection (line resistance will affect the measurement voltage), or directly measure the terminal, otherwise the voltage measurement will be inaccurate.

3. The non -module limit of the above parameters, but the parameter marking parameter indicated after leaving a certain amount of room is obtained through the long -distance running test. It is recommended to use it in the above parameters.

4. In order to avoid the chip burning due to static electricity such as static electricity, the client's hand is destroyed. Therefore, you should try to avoid the module touched the chip near the chip near the chip.

5. The module cannot reach the test value in the high temperature environment. The higher the temperature, the weaker the output ability.

6. Do not quickly connect the input -end power supply when the module is loaded, especially the power supply clip probe to quickly touch back and forth on the pads, which can easily cause the internal disorders of the moduleOpen the power, first connect the GND port when connected.