Product Name:   20W +- 5-24V Positive & Negative Dual Output Power Supply Boost-Buck Converter 
Packing list:  1 PCS 20W DC DCStep-up/Step-down Converter Positive and negative voltage Dual voltage Module

Description:
Input voltage 3.6~30V,output ±3~±30V adjustable
Maximum output power: 20W (For details, please see the description at the bottom or ask us for information.)
Conversion efficiency :69-89%
Quiescent current: 3-4mA
20W DC-DC Boost-Buck Converter working frequency 180KHZ. 
Operating ambient temperature : -40~+85 Degrees Celsius
Size : 60 x 34 x 15mm
High efficiency up to 89%
Built in Frequency Compensation
Built in Soft-Start Function
Built in Thermal Shutdown Function
Built in Current Limit Function 
Note:
1 In order to obtain a more stable voltage, it is recommended that the output is greater than 15MA
2 V- cannot be used alone, or no voltage output.But you can just use V+ 
3 The startup current of the module is 2.5-3 times the operating current.
4 Increasing the 1UF-10UF MLCC capacitor reduces the startup current

DataCaciques