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LT3975EMSE#PBF

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Analog Devices DC-DC Converters, MSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icslt3975emse#pbffactory-2.0.0extractor-text

Verified LT3975EMSE#PBF

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 17 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LT3975EMSE#PBF · MSOP-16-EP · 17 pins
  • ✓copper: 17 copper pads, none touching another net
  • ✓datasheet: all 17 pin names found in the 24-page datasheet
  • ✓distributor: lcsc C671831, digikey LT3975EMSE#PBF-ND, mouser 584-LT3975EMSE#PBF
  • ✓family: MSOP-16-1EP_3x4.039mm_P0.5mm_EP1.651x2.845mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-13qfettc/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 17 pins = 17 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 17 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ lt3975emse-pbf.kicad_sym✓ lt3975emse-pbf.kicad_mod✓ lt3975emse-pbf.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 8d ago
viewers lt3975emse-pbf: viewers · Ray 8d ago
lt3975emse-pbf-etched.glb Publish 0.1.0 · Ray 8d ago
lt3975emse-pbf-etched.step lt3975emse-pbf: factory component page (tier=mfr) · Ray 8d ago
lt3975emse-pbf-hero.glb lt3975emse-pbf: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
lt3975emse-pbf-hero.overlay.json Publish 0.1.0 · Ray 8d ago
lt3975emse-pbf.glb Publish 0.1.0 · Ray 8d ago
lt3975emse-pbf.kicad_mod Publish 0.1.0 · Ray 8d ago
lt3975emse-pbf.kicad_sym Publish 0.1.0 · Ray 8d ago
lt3975emse-pbf.lbr Publish 0.1.0 · Ray 8d ago
lt3975emse-pbf.step Publish 0.1.0 · Ray 8d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago
verification.json Verified: Published by the parts factory: tier mfr, 17 pins · Ray 8d ago

LT3975EMSE#PBF

Analog Devices · DC-DC Converters · MSOP-16-EP

LT3975EMSE#PBF from Analog Devices, in a MSOP-16-EP. 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 FB input FB regulates to 1.197V; connect the feedback divider tap here and a phase lead capacitor (typically 10pF) between FB and the output.
2 SS passive A soft-start capacitor from SS to ground slowly ramps the peak current limit at start-up, with an internal 1.8µA pull-up; float the pin to disable soft-start.
3 OUT input OUT is the input to the dropout comparator that maintains a minimum 500mV between VIN and OUT; connect it to the output when the programmed output voltage is below 16V.
4 BOOST power_in BOOST provides a drive voltage higher than the input voltage to the internal bipolar NPN power switch.
5 SW output SW is the output of the internal power switch and connects to the inductor, catch diode, and boost capacitor.
6 SW output SW is the output of the internal power switch and connects to the inductor, catch diode, and boost capacitor.
7 SW output SW is the output of the internal power switch and connects to the inductor, catch diode, and boost capacitor.
8 NC unconnected No connect; this pin is not connected to internal circuitry.
9 NC unconnected No connect; this pin is not connected to internal circuitry.
10 VIN power_in VIN supplies the internal circuitry and power switch and must be locally bypassed.
11 VIN power_in VIN supplies the internal circuitry and power switch and must be locally bypassed.
12 VIN power_in VIN supplies the internal circuitry and power switch and must be locally bypassed.
13 EN input EN high enables the part and low shuts it down; threshold is 1.08V rising and 1.02V falling, accurate only when VIN is above 4.3V, and internal UVLO shuts down the part below 3.9V.
14 RT passive A resistor from RT to ground sets the switching frequency.
15 PG output PG is an open-drain power good output that stays low until FB is within 8.4% of the final regulation voltage and is valid when VIN is above 2V.
16 SYNC input SYNC is the external clock synchronization input; ground it for Burst Mode operation at low loads, and do not float it.
17 GND power_in Exposed pad ground that must be soldered to the PCB.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package MSOP-16-EP
Category Power Management ICs
Pins 17

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Minimum Input Voltage 4.3 V l, full operating temperature range 2
Dropout Comparator Threshold (VIN, OUT) 430 500 570 mV Falling 2
Dropout Comparator Threshold Hysteresis 25 mV 2
Quiescent Current from VIN IQ 0.7 µA VEN Low 2
Quiescent Current from VIN IQ 1.6 µA VEN High, VSYNC Low 2
Quiescent Current from VIN IQ 1.3 2.7 µA VEN High, VSYNC Low, l 2
FB Pin Current IFB 0.1 12 nA VFB = 1.5V, l 2
Feedback Voltage VFB 1.173 1.197 1.222 V l 2
Feedback Voltage VFB 1.183 1.197 1.212 V 2
FB Voltage Line Regulation 0.0003 0.01 %/V 4.3V < VIN < 40V 2
Switching Frequency fSW 1.8 2.25 2.7 MHz RT = 11.8k 2
Switching Frequency fSW 0.8 1 1.2 MHz RT = 41.2k 2
Switching Frequency fSW 160 200 240 kHz RT = 294k 2
Minimum Switch On-Time tON(MIN) 105 ns 2
Minimum Switch Off-Time tOFF(MIN) 150 200 ns Note 4 2
Switch Current Limit ILIM 4 5.4 6.8 A VFB = 1V 3
Foldback Switch Current Limit ILIM 3.3 A VFB = 0V 3
Switch VCESAT VCESAT 80 mV ISW = 1A 3
Switch Leakage Current 0.02 1 μA 3
Boost Schottky Forward Voltage VF 730 mV ISH = 100mA 3
Boost Schottky Reverse Leakage IR 0.02 2 μA VREVERSE = 12V 3
Minimum Boost Voltage 1.3 1.8 V l 3
BOOST Pin Current 20 32 mA ISW = 1A, VBOOST, VSW = 3V 3
EN Voltage Threshold 0.92 1.02 1.12 V EN Falling, VIN ≥ 4.3V, l 3
EN Voltage Hysteresis 60 mV 3
EN Pin Current 0.2 20 nA 3
PG Threshold Offset from VFB 5 8.4 13 % VFB Falling 3
PG Hysteresis as % of Output Voltage 1.7 % 3
PG Leakage 0.02 1 µA VPG = 3V 3
PG Sink Current 125 480 μA VPG = 0.4V, l 3
SYNC Low Threshold 0.6 1 V 3
SYNC High Threshold 1.18 1.5 V 3
SYNC Pin Current 0.1 nA VSYNC = 6V 3
SS Source Current 0.9 1.8 2.6 μA VSS = 0.5V 3
BOOST Pin Above SW Pin 30 V 2
FB, RT, SYNC, SS Voltage 6 V 2
PG Voltage 30 V 2
OUT Voltage 16 V 2
Operating Junction Temperature Range (LT3975E) TJ -40 125 °C LT3975E 2
Storage Temperature Range TSTG -65 150 °C 2
Thermal Resistance, Junction to Ambient θJA 40 °C/W MSE package 2

CAD (KiCad official)

  • Symbol: LT3975EMSE#PBF
  • Footprint: Package_SO:MSOP-16-1EP_3x4.039mm_P0.5mm_EP1.651x2.845mm
  • 3D model: MSOP-16-EP (KiCad packages3D, STEP)
  • 3D model files: lt3975emse-pbf-etched.step / lt3975emse-pbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt3975emse-pbf.step / lt3975emse-pbf.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (24 pp, sha256 d1c511aec8b7e702, retrieved 2026-10-30, tier: manufacturer)
  • 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