Catalog
Electrical Parameter
| Model | 1) PBT223-FIXED: only support constant voltage (CV) mode 2) PBT223-ADJ: support 12-bit digital control (DAC) mode, constant voltage (CV) mode and constant power (CP) mode |
| Vin | 3.8 – 30 V |
| Vout | 0.8 – 22 V (fixed and adjustable Vout) |
| Iout | 0 – 3 A |
| Switching Frequency f_sw | Default 500kHz Support 200kHz – 2.2MHz |
| Duty Cycle (MAX) | 98% |
| Soft-Start time | Default 4.8ms |
| UART Read | 1) Read DC-DC output state, Vin, Vout, Iout, Pout, temperature values 2) Read operation mode and target values for DAC, CV and CP mode 3) Read max Vin, Vout, Iout, Pout protection values 4) Read LDO voltage, nominal 3.3V 5) Read MCU temeprature and temperature sensor values 6) Read OLED display state 7) Read EEPROM data |
| UART Write | 1) Turn ON/OFF DC-DC output 2) Set target value for 12-bit digital control, CV and CP mode 3) Configure max Vin, Vout, Iout, Pout protection values 4) Turn ON/OFF OLED display 5) Enable data stream mode. Provide software to visualize real-time data 6) Write EEPROM data |
| OLED Display | Display real-time Vout, Iout, Pout and temperature value |
| Protection Circuit | 1) Input protections: UVLO, OVP, OCP, reverse connection protection 2) Output protections: OVP, OCP, OPP, short circuit protection, reverse connection protection 3) Other protections: OTP, ESD protection |
| GitHub | Python API & example codes |
| Temperature Range | -40 – 85 ℃ |
Download
| File | Format | Download |
|---|---|---|
| User Manual |  | |
| Communication Protocol | Excel | |
| 2D Drawing | DXF, DWG, PNG | |
| 3D Model | PDF 3D, SLDPRT | |
| Test Report | | |
| GitHub | Python API & example codes | |
2D/3D Drawing
Operation Mode
2 control methods
1) Manual control via rotary encoder and button
2) UART command control (provides Python API)
3 operating modes
1) 12-bit digital control (DAC) mode
2) Constant voltage (CV) mode
3) Constant power (CP) mode
- 12-bit DAC mode: By adjusting a 12-bit digital signal from 0-4095, Vout can be linearly adjusted from 0.8 to 22V
- CV Mode: MCU monitors Vout in real-time and uses a PID algorithm to automatically adjust to the target Vout within 2 seconds.
- CP Mode: MCU monitors Vout and Iout in real-time, calculates the real-time Pout, and uses a PID algorithm to automatically adjust to the target Pout within 2 seconds
DAC Mode
CV Mode
CP Mode
12V/3A Load
GitHub
Applications
Constant power heating rod temperature control
Drone power supply
DC motor driver
Battery voltage converter
Video Tutorial
Product Selection
| Parameter | PBT223-0V8 | PBT223-3V3 | PBT223-5V | PBT223-12V | PBT223-22V | PBT223-ADJ |
|---|---|---|---|---|---|---|
| UART Control |  | | | | | |
| Vout | 0.8V | 3.3V | 5V | 12V | 22V | 1 – 22V Adjustable |
| Iout | 0 – 3A | 0 – 3A | 0 – 3A | 0 – 3A | 0 – 3A | 0 – 3A |
| Vin | 3 – 30V | 6 – 30V | 8 – 30V | 15 – 30V | 25 – 30V | >(Vout+5V) |
| Output Ripple Vpp | <150mV | <150mV | <150mV | <150mV | <150mV | <350mV |
| Switching Frequency f_sw | 200 – 2200kHz | 200 – 2200kHz | 200 – 2200kHz | 200 – 2200kHz | 200 – 2200kHz | 200 – 2200kHz |
| Temperature Range | -40 – 85 ℃ | -40 – 85 ℃ | -40 – 85 ℃ | -40 – 85 ℃ | -40 – 85 ℃ | -40 – 85 ℃ |
| Protection Circuit | | | | | | |
Price (USD)
| Quantity | PBT223-FIXED Fixed output | PBT223-ADJ Adjustable output |
|---|---|---|
| 1 | $30 | $40 |
| 5 | $28 | $38 |
| 10 | $27 | $37 |
| 25 | $26 | $36 |
| 50 | $25 | $35 |
