Products list direct from CN

Shenzhen Qinda Electronics Co., Ltd.

DD0512MA 6W Ultra-small & Ultra-thin DC-DC Step-up Converter 2.6-6V to 3.7V 5V 12V Boost Voltage Regulator Module

$1.03-1.11

Min. order 30 pieces

With Enable ON/OFF DC-DC 3V 3.3V 3.7V 4.2V 5V to 5V 6V 9V 12V Step-up Boost Converter Voltage Regulate Power Supply Module Board

$1.20-1.30

Min. order 30 pieces

DD28CRTA 1A 3.7V 3.8V 7.4V 11.1V 14.8V 18.5V Lithium Ion LiFePO4 Lithium Titanate Batterie Charger Charging Module

$2.57-2.80

Min. order 10 pieces

20W +- 5V 6V 9V 10V 12V 15V 24V Positive & Negative Dual Output Power Supply DC DC Step-up Boost-Buck Converter Module

$4.09-4.27

Min. order 10 pieces