component
MP1531DM-LF-Z
Public Made by Adomby adom
Monolithic Power Systems DC-DC Converters, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "mp1531dm-lf-z",
"version": "0.1.0",
"type": "component",
"description": "Monolithic Power Systems DC-DC Converters, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management (pmic)",
"mp1531dm-lf-z",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"mp1531dm-lf-z.kicad_sym",
"mp1531dm-lf-z.kicad_mod",
"mp1531dm-lf-z.glb",
"mp1531dm-lf-z.step",
"mp1531dm-lf-z.lbr",
"docs/hero.png",
"docs/mp1531dm-lf-z-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mp1531dm-lf-z-hero.glb",
"mp1531dm-lf-z-hero.overlay.json",
"mp1531dm-lf-z-etched.glb"
],
"component": {
"mpn": "MP1531DM-LF-Z",
"manufacturer": "Monolithic Power Systems",
"package": "TSSOP-16",
"pin_count": 16,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1ae62ddf587585665e39f0e63ab14155.pdf",
"parts": {
"symbol": "mp1531dm-lf-z.kicad_sym",
"footprint": "mp1531dm-lf-z.kicad_mod",
"model_3d": "mp1531dm-lf-z-hero.glb",
"model_3d_plain": "mp1531dm-lf-z-etched.glb",
"model_3d_step": "mp1531dm-lf-z-etched.step",
"model_3d_step_plain": "mp1531dm-lf-z.step",
"lbr": "mp1531dm-lf-z.lbr"
},
"distributor_links": {
"lcsc": "C17250296",
"digikey": "MP1531DM-LF-Z-ND",
"mouser": "946-MP1531DMLFZ"
},
"distributor_check": {
"checked_at": "2026-10-31T02:09:22Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "MP1531DM-LF-Z-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "946-MP1531DMLFZ",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "RDY",
"type": "output",
"description": "Open-drain active-low Regulators Not Ready output requiring an external 100kΩ pull-up; pulled low once startup completes and all FB voltages exceed 80% of threshold, goes high ~15µs after a fault, and the chip shuts down if the fault persists beyond ~6ms (C4 = 10nF)."
},
{
"number": "2",
"name": "FB1",
"type": "input",
"description": "Step-up converter feedback input (inverting input of the error amplifier); connect a resistive divider from the step-up output to set its voltage, regulating at 1.22V to 1.28V (1.25V typ)."
},
{
"number": "3",
"name": "COMP",
"type": "passive",
"description": "Step-up converter compensation node, the error amplifier output; connect a series RC network to compensate the control loop."
},
{
"number": "4",
"name": "IN",
"type": "power_in",
"description": "Internal power input supplying the MP1531 from 2.7V to 5.5V; bypass IN to PGND with a 10µF or greater capacitor."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Signal ground."
},
{
"number": "6",
"name": "REF",
"type": "power_out",
"description": "1.25V reference voltage output; bypass to GND with 0.1µF or greater and connect to the low-side resistor of the negative linear regulator feedback string."
},
{
"number": "7",
"name": "FB2",
"type": "input",
"description": "Negative linear regulator feedback input; connect the resistor string between GL and REF, with a regulation threshold of GND (0V ±25mV)."
},
{
"number": "8",
"name": "FB3",
"type": "input",
"description": "Positive linear regulator feedback input; connect the resistor string between GH and GND, with a regulation threshold of 1.25V."
},
{
"number": "9",
"name": "EN",
"type": "input",
"description": "On/off control input: drive high to turn on, low to turn off (all outputs immediately disabled); connect to IN for automatic startup; rising threshold 1.6V, low level 0.3V."
},
{
"number": "10",
"name": "GL",
"type": "power_out",
"description": "Negative linear regulator output supplying up to 10mA; bypass to GND with a 1µF or greater low-ESR ceramic capacitor."
},
{
"number": "11",
"name": "IN2",
"type": "power_in",
"description": "Negative linear regulator input, driven by an inverting charge pump powered from SW; can go as low as -20V."
},
{
"number": "12",
"name": "GH",
"type": "power_out",
"description": "Positive linear regulator output supplying up to 10mA; bypass to GND with a 1µF or greater low-ESR ceramic capacitor."
},
{
"number": "13",
"name": "IN3",
"type": "power_in",
"description": "Positive linear regulator input, driven by a doubling, tripling or quadrupling charge pump from SW; can go as high as 38V."
},
{
"number": "14",
"name": "PGND",
"type": "power_in",
"description": "Power ground, the source of the internal 250mΩ N-channel MOSFET switch; connect to GND as close to the MP1531 as possible."
},
{
"number": "15",
"name": "SW",
"type": "passive",
"description": "Step-up converter power switch node, the drain of the internal 250mΩ N-channel MOSFET; connect the inductor from the input source to SW and a rectifier from SW to the main output (-0.3V to +25V)."
},
{
"number": "16",
"name": "CT",
"type": "passive",
"description": "Timing capacitor pin for soft-start, power-on sequencing and fault timer; a capacitor from CT to GND sets the delay periods (10nF gives 6ms)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin types for COMP, SW and CT are judged as passive; the datasheet gives no explicit electrical type"
],
"pages_sent": 15,
"cost_usd": 0.1384,
"at": "2026-10-31T02:09:13"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/1ae62ddf587585665e39f0e63ab14155.pdf",
"pages": 15,
"sha256": "620467760e8cb3fb",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 16,
"described": 16,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "mp1531dm-lf-z.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
5.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mp1531dm-lf-z-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
5.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "3d798e7a8c3b82deef8a88bb7c0cbd54830ca9fe3ea6c9f73275d8a262f12b50",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}