1、 This boost-buck converter supports positive & negative dual output voltage. 2、 High conversion efficiency up to 90%, stable output voltage. 3、 Made with high quality electronic components, stable performance. 4、 Built in frequency compensation, soft-start function, thermal shutdown function and current limit function. 5、 Application: ADC, DAC, operational amplifier, audio equipment, LCD power supply and more. Features: 1. This boost-buck converter supports positive & negative dual output voltage. 2. High conversion efficiency up to 90%, stable output voltage. 3. Made with high quality electronic components, stable performance. 4. Built in frequency compensation, soft-start function, thermal shutdown function and current limit function. 5. Application: ADC, DAC, operational amplifier, audio equipment, LCD power supply and more.   Specification: Input voltage: 3~24V Output voltage: ±5V/±6V/±9V/±10V/±12V/±15V/±18V/±24V (Optional) Maximum output power: 1-8W Conversion efficiency :70-90% Quiescent current: 3-4mA Accuracy : Positive voltage ±3%, Negative voltage ±5% Working frequency: 400kHz Operating temperature: -40~85℃ Size: 42*24*15mm / 1.65* 0.94* 0.59in Weight: 12g (approx.)   Package List: 1 * Positive Negative Voltage Converter