TSR-1 switching buck regulator in SIP-3 package, outputs 5V at 1A from up to 36V input. Up to 94% efficient at +60°C ambient with no heat-sink needed. Requires an additional 10µF+ input capacitor for stability.
Input supply pin for the TSR 1 step-down regulator; Adafruit states 6.5 to 32 VDC input for the 5 V module.
Ground/common return pin. TSR 1 datasheet Pin-Out lists pin 2 as GND.
Regulated output pin. Adafruit product page states 5 V regulated output up to 1 A; TSR 1 datasheet Pin-Out lists pin 3 as +Vout.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| +Vin | 1 | Power | Input supply pin for the TSR 1 step-down regulator; Adafruit states 6.5 to 32 VDC input for the 5 V module. | 6.5-32 VDC input, source: Adafruit product page and TSR 1 datasheet |
| GND | 2 | Ground | Ground/common return pin. TSR 1 datasheet Pin-Out lists pin 2 as GND. | 0 V reference |
| +Vout | 3 | Power | Regulated output pin. Adafruit product page states 5 V regulated output up to 1 A; TSR 1 datasheet Pin-Out lists pin 3 as +Vout. | 5 V DC regulated output, up to 1 A per Adafruit product page |
Input supply pin for the TSR 1 step-down regulator; Adafruit states 6.5 to 32 VDC input for the 5 V module.
Ground/common return pin. TSR 1 datasheet Pin-Out lists pin 2 as GND.
Regulated output pin. Adafruit product page states 5 V regulated output up to 1 A; TSR 1 datasheet Pin-Out lists pin 3 as +Vout.
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: +Vin, +Vout, GND. Schematik maps them to your board in the app.
Wall adapters (5V–24V), adjustable and fixed buck/boost/buck-boost converters (MT3608, LM2596-class), USB-C PD triggers (HUSB238), breadboard supplies, DIN-rail units and passive barrel-jack adapters.
10W 4 USB Power Adapter visual preview10W 4 USB Power Adapter
120W DC-DC Converter 12V@10A visual preview120W DC-DC Converter 12V@10A
12V 2A Industrial DIN-Rail Power Supply, AC/DC Converter visual preview12V 2A Industrial DIN-Rail Power Supply, AC/DC Converter
12V 60W AC/DC Power Adapter for LattePanda Mu visual preview12V 60W AC/DC Power Adapter for LattePanda Mu
12V 60W AC/DC Power Adapter Pack for LattePanda IOTA visual preview12V 60W AC/DC Power Adapter Pack for LattePanda IOTA
12V DC 1000mA (1A) regulated switching power adapter - UL listed visual preview12V DC 1000mA (1A) regulated switching power adapter - UL listed
150W DC-DC Converter 24V@6A visual preview150W DC-DC Converter 24V@6A
2-way Fast Charge Buck Module (Compatible with Raspberry Pi 4B & Jetson Nano) visual preview2-way Fast Charge Buck Module (Compatible with Raspberry Pi 4B & Jetson Nano)
2.1mm 5VDC Barrel Jack to USB C Adapter visual preview2.1mm 5VDC Barrel Jack to USB C Adapter
2.1mm DC Barrel Jack to 1st Generation MagSafe Adapter visual preview2.1mm DC Barrel Jack to 1st Generation MagSafe Adapter
2.1mm DC Barrel Jack to 2nd Generation MagSafe Adapter visual preview2.1mm DC Barrel Jack to 2nd Generation MagSafe Adapter
2.1mm DC Barrel Jack to Alligator Clips visual preview2.1mm DC Barrel Jack to Alligator Clips
1-Way 18650 Battery Holder visual preview9V alkaline cells, CR2032 coin cells, 3.7V LiPo packs (1000–1200mAh), 7.4V 2S LiPo, 18650 Li-ion holders (1–6 cells), AA/AAA holders in every configuration, and snap leads with barrel adapters.
Power · Batteries · 104 parts
7.4V Lipo Battery Charger visual previewSingle-cell LiPo chargers (TP4056, MicroUSB/Type-C modules), charger/booster combos (PowerBoost 500/1000, Lipo Rider Plus 5V/2.4A), I2C fuel gauges (MAX17048, LC709203F) and Qi wireless charging coils.
Power · Chargers & fuel gauges · 47 parts
3.8 / 1.3mm or 3.5 / 1.1mm to 5.5 / 2.1mm DC Jack Adapter Cable visual previewSolar panels from 1.5V 250mA flexible film to 18V 10W polysilicon, MPPT solar power managers (DFRobot 5V and 9V/12V/18V, Waveshare 6V–24V), bq25185 charger boards and LTC3588 energy-harvesting breakouts.
Power · Solar power · 28 parts
1.75mm PLA (1kg) - Black visual previewDFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.
Tools & prototyping · 3D printing · 53 parts