The TP5100, manufactured by Electronics Hut (Part ID: CHMOD), is a high-efficiency linear voltage regulator designed for low-dropout applications. It provides a stable and reliable output voltage with minimal power loss, making it ideal for battery-powered devices. The TP5100 is equipped with features such as thermal protection, adjustable output voltage, and high efficiency, ensuring optimal performance in a wide range of applications.
This circuit is a Bluetooth-enabled audio system powered by a rechargeable 18650 Li-ion battery. It includes a TP4056 module for battery charging and protection, a PAM8403 amplifier with volume control to drive two loudspeakers, and a Bluetooth audio receiver to wirelessly receive audio signals.
Open Project in Cirkit Designer
This circuit consists of a TP4056 module connected to a 3.7V LiPo battery, providing a charging interface for the battery. The TP4056 manages the charging process by connecting its B+ and B- pins to the battery's positive and ground terminals, respectively.
Open Project in Cirkit Designer
This circuit is a battery-powered system featuring an ESP32 microcontroller that controls an OLED display, a motor driver for two hobby motors, an ultrasonic sensor for distance measurement, and a DFPlayer Mini for audio output through a loudspeaker. The TP4056 module manages battery charging, and a step-up boost converter provides a stable 5V supply to the components.
Open Project in Cirkit Designer
This circuit is a battery-powered system featuring an Arduino Nano that interfaces with a Nokia 5110 LCD and multiple pushbuttons. The TP4056 module charges the 18650 Li-ion batteries, which then power the Arduino through a step-up boost converter. The Arduino controls the LCD display and reads inputs from the pushbuttons for user interaction.
Open Project in Cirkit Designer| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5V to 18V |
| Output Voltage Range | Adjustable (1.2V to 12V) |
| Maximum Output Current | 2A |
| Dropout Voltage | 0.2V (at 1A load) |
| Efficiency | Up to 90% |
| Thermal Protection | Yes |
| Operating Temperature | -40°C to +85°C |
| Package Type | SOP-8 |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VIN | Input voltage pin (4.5V to 18V) |
| 2 | GND | Ground pin |
| 3 | VOUT | Regulated output voltage pin |
| 4 | ADJ | Adjustable voltage pin (connect resistor divider) |
| 5 | EN | Enable pin (active high, logic level control) |
| 6 | NC | No connection (leave unconnected) |
| 7 | NC | No connection (leave unconnected) |
| 8 | NC | No connection (leave unconnected) |
VIN pin. Ensure the input voltage is within the specified range.ADJ pin to set the desired output voltage. Refer to the formula in the datasheet for precise calculations.EN pin to a logic high signal (e.g., 3.3V or 5V) to enable the regulator. Pulling this pin low disables the output.VOUT pin. Ensure the load does not exceed the maximum output current of 2A.GND pin to the circuit ground.VIN pin to stabilize the input voltage.VOUT pin to ensure stable operation and reduce output noise.EN pin to VIN to keep the regulator always enabled.The TP5100 can be used to power an Arduino UNO by regulating a higher input voltage (e.g., 12V) down to 5V. Below is an example circuit and Arduino code to control the EN pin.
VIN pin.VOUT pin to the Arduino UNO's 5V input.EN pin.// Define the pin connected to the TP5100 EN pin
const int enablePin = 7;
void setup() {
// Set the enable pin as an output
pinMode(enablePin, OUTPUT);
// Enable the TP5100 by setting the pin HIGH
digitalWrite(enablePin, HIGH);
// Optional: Add a delay to allow the regulator to stabilize
delay(100);
}
void loop() {
// The TP5100 remains enabled in this example
// Add your main code here
}
| Issue | Possible Cause | Solution |
|---|---|---|
| No output voltage | EN pin not connected or set to LOW |
Ensure the EN pin is connected to HIGH |
| Output voltage is unstable | Insufficient output capacitor | Use a low-ESR capacitor (e.g., 22µF) |
| Overheating | Excessive load or poor thermal design | Reduce load or improve heat dissipation |
| Incorrect output voltage | Resistor divider miscalculated | Verify resistor values and connections |
Can the TP5100 handle 3.3V output?
What happens if the input voltage exceeds 18V?
Is the TP5100 suitable for powering microcontrollers?
Can I leave the ADJ pin unconnected?
ADJ pin must be connected to a resistor divider to set the output voltage.