LED flashlight using MAX660
Source: InternetPublisher:HnGuNoVr Keywords: MAX660 LED Updated: 2025/11/21
This is a simple LED flashlight circuit based on the MAX660 IC from Maxim Semiconductor. The MAX660 is a CMOS monolithic voltage converter IC. This IC can easily drive three ultra-bright white LEDs. The LEDs are connected in parallel to pin 8 of the IC's output. The circuit has good battery life. Switch S1 can be a push-to-open switch.
Note:
Assemble circuits on a general-purpose PCB.
The IC must be mounted on a bracket.
The circuit can be powered by two flashlight batteries connected in series.
Capacitors C1 and C2 must be tantalum type.
Diodes D1 through D3 must be type 1N4148.
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