Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

main

Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	Publish 0.1.0 · Ray	17d ago
viewers	ltl431aptslt1g: viewers · Ray	17d ago
ltl431aptslt1g-etched.glb	Publish 0.1.0 · Ray	17d ago
ltl431aptslt1g-etched.step	ltl431aptslt1g: factory component page (tier=lcsc) · Ray	17d ago
ltl431aptslt1g-hero.glb	ltl431aptslt1g: hero GLB from the etched model (keeps the MPN mark) · Ray	17d ago
ltl431aptslt1g-hero.overlay.json	Publish 0.1.0 · Ray	17d ago
ltl431aptslt1g.glb	Publish 0.1.0 · Ray	17d ago
ltl431aptslt1g.kicad_mod	Publish 0.1.0 · Ray	17d ago
ltl431aptslt1g.kicad_sym	Publish 0.1.0 · Ray	17d ago
ltl431aptslt1g.lbr	Publish 0.1.0 · Ray	17d ago
ltl431aptslt1g.step	Publish 0.1.0 · Ray	17d ago
package.json	Publish 0.1.0 · Ray	17d ago
page.json	Set visibility: public · Ray	17d ago
README.md	Publish 0.1.0 · Ray	17d ago

LTL431APTSLT1G

LRC · Voltage Reference · SOT-23

LTL431APTSLT1G from LRC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	CATHODE	passive	Cathode is the regulator output terminal, adjustable between Vref (approximately 2.5 V) and 36 V with two external resistors, and needs at least 0.3 to 0.5 mA of cathode current for regulation (IKA(min), VKA=VREF).
2	REF	input	Reference input is regulated to Vref of about 2.5 V (2.450 to 2.550 V over the 2% grade, with tighter 1% and 0.5% grades) and draws a reference input current Iref of 1 to 2 µA.
3	ANODE	passive	Anode is the common terminal through which the cathode current returns, and the off-state cathode current IKA(OFF) is specified at 0.5 µA maximum with VKA=36 V and VREF=0.

Key specifications

Parameter	Value
Manufacturer	LRC
Package	SOT-23
Category	Power Management (PMIC)
Pins	3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Reference Input Voltage 1 (1% grade)	Vref	2.475	2.5	2.525	V	VKA=VREF,IKA=10mA	2
Reference Input Voltage 2* (1% grade)	Vref	2.47	2.495	2.52	V	VKA=VREF,IKA=10mA	2
Deviation of reference input voltage over temperature	ΔVref		4.5	25	mV	VKA=VREF,IKA=10mA,TMIN≤TA≤TMAX	2
Ratio of change in reference input voltage to change in cathode voltage (ΔVKA=10V~VREF)	ΔVref/ΔVKA		-1	-2.7	mV/V	IKA=10mA,ΔVKA=10V~VREF	2
Ratio of change in reference input voltage to change in cathode voltage (ΔVKA=36V~10V)	ΔVref/ΔVKA		-0.5	-2	mV/V	IKA=10mA,ΔVKA=36V~10V	2
Reference input current	Iref		1	2	μA	IKA=10mA,R1=10kΩ,R2=∞	2
Deviation of reference input current over full temperature range	ΔIref/ΔT		0.2	0.4	μA	IKA=10mA,R1=10kΩ,R2=∞,TA=full Temperature Range	2
Minimum cathode current for regulation	IKA(min)		0.3	0.5	mA	VKA=VREF	2
Off-state cathode current	IKA(OFF)		0.05	0.5	μA	VKA=36V,VREF=0	2
Dynamic impedance	ZKA		0.15	0.5	Ω	VKA=VREF,IKA=1 to 100mA,f≤1.0kHz	2
Operating temperature range		-40		125	°C	Rank/range table entry for the -40~+125 °C grades	2

CAD (KiCad official)

Symbol: LTL431APTSLT1G
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)
3D model files: ltl431aptslt1g-etched.step / ltl431aptslt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltl431aptslt1g.step / ltl431aptslt1g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: LRC datasheet (5 pp, sha256 1a8af1a758325c61, retrieved 2026-10-18, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF