Power chip

12V to 5V DC/DC 2W constant voltage input, isolated unregulated power supply module

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5V synchronous step-up dual-cell lithium battery charging management IC, maximum charging current 2A, 8.4V battery, with NTC, input adaptive current limiting, charging timer, battery power indicator, EN enable, charging voltage and current adjustable.

High Efficiency Thermoelectric Cooler Controller

Low-Cost, Microprocessor Supervisory Circuit, Threshold Voltage = 4.65V

Input voltage: 4.5-5.5Vdc\nOutput voltage: ±12V\nOutput current: ±0.042A\nOutput power: 1W\nIsolation voltage: 3000Vdc\nConversion efficiency:\nFeature: output short circuit protection