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134N3P 5V Boost Converter Step-Up Power Module Lithium Battery Charging Protection Board USB Charger

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About the Product

Product Description


Charging and discharging indication

Internally installed charging and discharging power MOS

Preset 4.2V charging voltage, precision ±1%

Max 8uA standby current

Integration charging management and discharging management

Intelligent temperature control and over-temperature protection

Integration output over-voltage protection,short circuit protection,overload protection

Integration overcharging and over-discharging protection

Support trickle mode and zero voltage charging

When charging: red light flashing

Full charged: red light for a long time


Input Voltage: 3.7V~5.5V

Charging Current: 1A(max)

Output Current: 1A(max)

Output voltage: 5V

BAT Discharging Stop Voltage: 2.9V

Discharging Efficiency: 85%(input 3.7V output 5V/1A)

Type-C USB 5V 2A Boost Converter Step-Up Power Module Lithium Battery Charging


The output will be turned off when the load current is continuously less than 50mA.

Support external buttons, connect the button to point K and the negative output, short press to turn on the power display and turn on the 5V output, and two short presses will turn off the power display and turn off the 5V output.

When the charging current drops to 100mA after reaching the final float voltage, the charging cycle will be automatically terminated.

When the battery voltage drops below 4.1V, the charging cycle restarts.

When the battery voltage is lower than 2.8V, the battery will be precharged with a current of 180mA.

The USB-A female socket welding position is provided on the back of the product, and the female socket can be manually installed.

Support charging and discharging.


Input voltage range: 5 ~ 5.5V

Charging cut-off voltage: (4.2V/4.35V) ±0.5%:

Charging current: 2.4A±5%

Boost output voltage: 5V5.15V (wire loss compensation)

Boost output voltage ripple: 100mV

Boost output current: 2A

Boost conversion efficiency: 92.5% (3.6V input, 5V2A Output)

Battery end quiescent current: 30uA

Material: Metal and P1astic

Size: approx.18x23mm/0.71x0.91in

Color: As pictures shown
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