0HMv08W

SEPIC+CUK Dual Power Supply + PD Decoy MT3608

Overview

The 20V PD Power Supply Module
is designed to build a desktop power supply with adjustable voltage. Its input voltage Vin is designed to be 5V~20V, input via USB PD protocol, and the output voltage Vout is designed to be -20V~20V, output via 5.0mm terminal blocks.
Board Description

Circuit
Structure
Function
Input Voltage
Output Voltage
Rated Current
Frequency
Description

1. CH224K PD Module

20V PD Decoy

2. MT2492 BUCK 16V 2A
BUCK
step-down
4.5V-16V

2A
600kHz
Fixed Output Voltage

3. MT3608 SEPIC+CUK 24V 2A_1
SEPIC+CUK
step-up/step-down + positive/negative voltage
2V-24V
28V
2A
1.2MHZ
Adjustable Output Voltage

4. MT3608 SEPIC+CUK 24V 2A
SEPIC+CUK
step-up/step-down + positive/negative voltage
2V-24V
28V
2A
1.2MHZ
Fixed Output Voltage

5. TPS54302 BUCK 28V 3A_1
BUCK
step-down + positive/negative voltage
4.5V-28V

3A
400kHz

6. TPS54302 BUCK 7. Verification Board: 28V 3A
BUCK
step-down
4.5V-28V

3A
400kHz. 8. XL1583 BUCK 23V 3A BUCK step-down 3.6V-23V 3A 380kHz. 7. Verification Board includes: CH224K PD Module (verified) , MT3608 SEPIC+CUK 24V 2A_1 (verified) , TPS54302 BUCK 28V 3A_1 (unverified).

Design Files

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Update:2026-03-26 19:22:28

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