CRLD20MA 2-in-1 Battery Charger & LDO Converter – DC 5V to 4.2V 500mA Charging + 3.7V to 3.3V 250mA Step-Down for 18650 Li-Ion Li-Po

Product Name : Automatic Charging Discharging Module DC 5V to 4.2V 500MA Battery Charger & DC 3.7V 3.8V to 3.3V 3V 250MA LDO Converter for 18650 Li-Ion Li-Polymer

Packing list:

1/2/5PCS CRLD20MA 2 in 1 charge and buck modules 3V/3.3V Output

Description:

2 in 1 Charge and Discharger(Buck) modules


Charge voltage : DC 4.5V-6V(Recommend DC 5V)


Charging current : 100-500mA


Full charge voltage : 4.24V(+-1%)




Bat to Vo LDO current(Vo=3V/3.3V) : 0-250mA;


Bat to Vo LDO quiescent current(Vo=3V/3.3V)quiescent current : 2uA


Operating ambient temperature : -40° to +85°


Storage temperature : -65° to +125°


Ultra-small size: 12*11*2.1MM


ultra light weight :0.5g


Note :

This module without lithium battery over-discharge protection,

Matching protection board
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Applications:

A AA AAA Dry cell powered equipment
Battery powered equipment
Lithium Battery 18650 14500
UPS power supply equipment diy
Solar charging
STM32 FPGA/CPLD PIC AVR Board
Electronic diy kit
Wifi Module ESP8266 ESP32
Bluetooth-Compatible Module:HC-05 HC-06 SPP-C

Pin Description:

Vo : 200MA LDO output positive pole(3V/3.3V)

B :Battery Charging positive pole(4.24V)

Vi : Input Power positive pole(4.5-6V)

G :GND(0V)