component
LP2951 Micropower LDO
Public Made by Adomby adom
100 mA micropower adjustable low-dropout regulator with error flag and shutdown.
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page.json+122−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "lp2951",+ "title": "LP2951 Micropower LDO",+ "brief": "100 mA micropower adjustable low-dropout regulator with error flag and shutdown.", "version": "0.1.0",- "type": "component",- "description": "100 mA micropower adjustable low-dropout regulator with error flag and shutdown.",+ "license": "CC-BY-SA-4.0", "tags": [ "regulator", "ldo",@@ -12,6 +15,122 @@ "ti", "soic-8" ],+ "component": {+ "mpn": "LP2951",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Power Management",+ "subcategory": "Linear Regulator (LDO)",+ "datasheet": "https://www.ti.com/lit/ds/symlink/lp2951.pdf",+ "parts": {+ "symbol": "lp2951.kicad_sym",+ "footprint": "lp2951.kicad_mod",+ "model_3d": "lp2951.glb",+ "model_3d_step": "lp2951.step"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "OUTPUT",+ "type": "power_out",+ "description": "Regulated output supply, up to 100mA. Requires a ceramic capacitor to GND for stability (COUT 1\u00b5F to 100\u00b5F, ESR 0 to 2\u03a9 on the new chip). Place the output cap as close to the pin as possible."+ },+ {+ "number": "2",+ "name": "SENSE",+ "type": "input",+ "description": "Kelvin sense of the output voltage. Tie to OUTPUT (with FEEDBACK tied to VTAP) for the fixed-output configuration. Leave floating when using the adjustable-output configuration."+ },+ {+ "number": "3",+ "name": "SHUTDOWN",+ "type": "input",+ "description": "Active-high shutdown input. Drive high (>~1.5V) to disable the regulator; drive low (VSHUTDOWN \u2264 0.7V) to enable normal operation. Absolute max 42V (new chip) / 35V (legacy)."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground reference for the regulator, error comparator, and internal bandgap."+ },+ {+ "number": "5",+ "name": "ERROR",+ "type": "output",+ "description": "Active-low open-drain error flag. Asserts (pulls low) when VOUT drops more than ~6% below its nominal value, indicating an out-of-regulation or under-voltage condition. Requires an external pull-up; useful for power-sequencing multiple rails."+ },+ {+ "number": "6",+ "name": "VTAP",+ "type": "input",+ "description": "Tap of the internal fixed-voltage resistor divider. Connect to FEEDBACK for the fixed 3.3V/5V output option. Leave floating when using the device in adjustable-output mode."+ },+ {+ "number": "7",+ "name": "FEEDBACK",+ "type": "input",+ "description": "Error-amplifier feedback input (regulates to VREF \u2248 1.235V). Connect to VTAP (with OUTPUT tied to SENSE) for fixed output; connect to the mid-point of an external R1/R2 divider for adjustable output (VOUT = VREF \u00d7 (1 + R1/R2), VREF to 29V). Divider current should be \u226512\u00b5A or add a feed-forward cap for stability."+ },+ {+ "number": "8",+ "name": "INPUT",+ "type": "power_in",+ "description": "Unregulated supply input, 2V to 30V operating (absolute max 42V new chip / 35V legacy). Bypass with at least a 1\u00b5F capacitor to GND close to the pin."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/lp2951.pdf",+ "pages": 49,+ "sha256": "4a441bb26d2b5975",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Type": "Micropower adjustable LDO",+ "Output current": "100 mA",+ "Quiescent current": "75 uA typ",+ "Dropout voltage": "380 mV at 100 mA",+ "Output": "Adjustable (1.24 V ref) or fixed 3.0/3.3/5 V",+ "Features": "Shutdown, error flag",+ "Supply voltage": "Up to 30 V",+ "Operating temperature": "-40 C to 125 C"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "micropower LDO",+ "adjustable regulator",+ "battery regulator",+ "low quiescent current"+ ],+ "discovery_pitch": "A 100 mA micropower LDO with low quiescent current, an error flag, and shutdown for battery-powered designs.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -28,10 +147,5 @@ "docs/lp2951-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }