ME2108A50PG module is a power boost converter that provides a stable 5V DC output voltage with a maximum current of 600mA across various input voltages (0.9V, 1.5V, 1.8V, 2.5V, 3V, 3.3V, 3.7V, and 4.2V). It operates at a frequency of 180 kHz, with a typical conversion efficiency of 85%. It can be used to make power banks, drivers for LED flashlights, etc.
Specification
The quick technical specification of the circuit board is given below.
| Module Type | Boost Converter |
| Chip Used | ME2108A50PG |
| Input Type | DC |
| Input Voltage Range | 0.9V to 6.5V |
| Input Terminal | Vi, GND (Common) |
| Operating frequency | 180kHz |
| Output Type | Stable DC |
| Output Voltage | 5V |
| Output Terminal | Vo, GND (Common) |
| Output Current | 600mA Max. |
| Efficiency | 85% |
| PCB Colour | Green |
Circuit Diagram
Schematic of me2108a50pg boost converter module circuit as shown below.
The components are used in the circuit boards are - U1: ME2108A50PG IC, L1: 22uH 1A SMD Inductor, C1 C2: 10uF 0806 Ceramic Capacitor, and D1: SS14 Schottky Diode.
Circuit Working Explanation
The working of this boost converter is simple and uses few components. The main component of the module is the 3-pin ME2108A50PG integrated circuit. Initially, the IC (U1) operates by rapidly switching its internal transistor on and off, allowing current to flow through the inductor (L1), from the Lx pin to ground, and storing energy in its magnetic field during the "on" phase.
When the transistor turns off, the stored energy in the inductor is released, boosting the voltage and pushing current through the output diode (D1) toward the noise-filtering capacitors (C1, C2).
The Vout pin of the ME2108 IC provides the output voltage feedback, which is compared with a stable internal reference voltage (Vref) to generate an error signal. This signal adjusts the duty cycle at a frequency of up to 180 kHz to maintain a stable 5V output voltage with a maximum current of 600mA.
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