Classic blue LM2596S-ADJ adjustable step-down (buck) DC-DC converter module (Addicore AD281). Multi-turn trimpot sets output from about 1.23 V to 37 V; input 3-40 V; up to 3 A. Four solder pads: IN+, IN-, OUT+, OUT-.
DC input positive (3-40 V)
DC input negative / ground
adjustable DC output positive (1.23-37 V)
DC output negative / ground
| Pin | Type | Function | Voltage |
|---|---|---|---|
| IN+ | Power | DC input positive (3-40 V) | 3-40V |
| IN- | Ground | DC input negative / ground | |
| OUT+ | Power | adjustable DC output positive (1.23-37 V) | 1.23-37V |
| OUT- | Ground | DC output negative / ground |
DC input positive (3-40 V)
DC input negative / ground
adjustable DC output positive (1.23-37 V)
DC output negative / ground
3.3 V · 5 V · Module
The family now includes 9 V wall adapters at 650 mA, 1 A and 2.55 A. The voltage class matches, but current headroom, plug region, connec…
Module pins: IN+, OUT+, IN-, OUT-. Schematik maps them to your board in the app.
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