component
BL1117-25CX
Public Made by Adomby adom
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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bl1117-25cx: factory component page (tier=lcsc)
3 files changed
+16−15
README.md+3−5@@ -8,9 +8,9 @@ BL1117-25CX from BL Shanghai Belling, in a SOT-223-3. Pinout and pin description | Pin | Name | Type | Function | |---|---|---|---|-| 1 | GND | power_in | Ground / device return. Also the reference node for the internal bandgap and output divider. Connected to the SOT-223 tab (pin 2 electrically ties to Vout on SOT-223, tab is GND on this pinout convention per the datasheet's fixed-version table). |-| 2 | Vout | power_out | Regulated 2.5V output, capable of sourcing up to 1A. Requires a ≥10µF tantalum or MLCC output capacitor for stability (ESR 3mΩ-22Ω). |-| 3 | Vin | power_in | Unregulated input supply. Operating range up to 12V max (15V absolute max); Vin must be ≥ Vout + Vdropout (≈1.3V at 1A). A ≥10µF bypass capacitor is recommended at this pin. |+| 1 | GND | power_in | Ground reference for the regulator. Also serves as the return current path; the SOT-223 tab is electrically connected to this pin for thermal dissipation. |+| 2 | Vout | power_out | Regulated output voltage pin. For BL1117-25 the nominal output is 2.5V (min 2.45V, typ 2.5V, max 2.55V) at up to 1A load. A 10µF tantalum or MLCC output capacitor is recommended for stability. |+| 3 | Vin | power_in | Unregulated input supply pin. Operating input voltage up to 12V (15V absolute max). A 10µF tantalum or MLCC bypass capacitor is recommended close to this pin. | ## Key specifications @@ -24,9 +24,7 @@ BL1117-25CX from BL Shanghai Belling, in a SOT-223-3. Pinout and pin description ## Ordering variants - `BL1117-25CX25CX`-- `BL1117-25CX25AX` - `BL1117-25CX25CY`-- `BL1117-25CX25AY` ## CAD (KiCad official)
bl1117-25cx.lbr+9−3@@ -50,7 +50,7 @@ <layer number="98" name="Guide" color="6" fill="1" visible="yes" active="yes"/> </layers> <library>-<description></description>+<description>BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3</description> <packages> <package name="SOT-223-3_TabPin2"> <description>4 pads, 8.3 x 6.1 mm. module CMS SOT223 4 pins</description>@@ -79,6 +79,7 @@ </packages> <symbols> <symbol name="BL1117-25CX">+ <description>BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3</description> <wire x1="-12.7" y1="2.54" x2="12.7" y2="2.54" width="0.254" layer="94"/> <wire x1="12.7" y1="2.54" x2="12.7" y2="-5.08" width="0.254" layer="94"/> <wire x1="12.7" y1="-5.08" x2="-12.7" y2="-5.08" width="0.254" layer="94"/>@@ -92,7 +93,7 @@ </symbols> <devicesets> <deviceset name="BL1117-25CX" prefix="U">- <description></description>+ <description>BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3</description> <gates> <gate name="G$1" symbol="BL1117-25CX" x="0" y="0"/> </gates>@@ -103,7 +104,12 @@ <connect gate="G$1" pin="Vout" pad="2 2@2"/> <connect gate="G$1" pin="Vin" pad="3"/> </connects>- <technologies><technology name=""/></technologies>+ <technologies>+ <technology name="">+ <attribute name="MPN" value="BL1117-25CX" constant="no"/>+ <attribute name="MANUFACTURER" value="BL Shanghai Belling" constant="no"/>+ </technology>+ </technologies> </device> </devices> </deviceset>
page.json+4−7@@ -32,19 +32,19 @@ "number": "1", "name": "GND", "type": "power_in",- "description": "Ground / device return. Also the reference node for the internal bandgap and output divider. Connected to the SOT-223 tab (pin 2 electrically ties to Vout on SOT-223, tab is GND on this pinout convention per the datasheet's fixed-version table)."+ "description": "Ground reference for the regulator. Also serves as the return current path; the SOT-223 tab is electrically connected to this pin for thermal dissipation." }, { "number": "2", "name": "Vout", "type": "power_out",- "description": "Regulated 2.5V output, capable of sourcing up to 1A. Requires a ≥10µF tantalum or MLCC output capacitor for stability (ESR 3mΩ-22Ω)."+ "description": "Regulated output voltage pin. For BL1117-25 the nominal output is 2.5V (min 2.45V, typ 2.5V, max 2.55V) at up to 1A load. A 10\u00b5F tantalum or MLCC output capacitor is recommended for stability." }, { "number": "3", "name": "Vin", "type": "power_in",- "description": "Unregulated input supply. Operating range up to 12V max (15V absolute max); Vin must be ≥ Vout + Vdropout (≈1.3V at 1A). A ≥10µF bypass capacitor is recommended at this pin."+ "description": "Unregulated input supply pin. Operating input voltage up to 12V (15V absolute max). A 10\u00b5F tantalum or MLCC bypass capacitor is recommended close to this pin." } ], "provenance": {@@ -108,8 +108,5 @@ "docs/bl1117-25cx-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": {- "public": true- }+ ] }