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LT3990EMSE-3.3#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 icslt3990emse-3.3#pbffactory-2.0.0extractor-text

Verified LT3990EMSE-3.3#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: LT3990EMSE-3.3#PBF · MSOP-16-EP · 17 pins
  • ✓copper: 17 copper pads, none touching another net
  • ✓datasheet: all 17 pin names found in the 22-page datasheet
  • ✓distributor: lcsc C671861, digikey LT3990EMSE-3.3#PBF-ND, mouser 584-3990EMSE-3.3PBF
  • ✓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-dgaq0727/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height within the datasheet's package drawing (datasheet p.20)
  • ✓pads: 17 pins = 17 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 17 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ lt3990emse-3-3-pbf.kicad_sym✓ lt3990emse-3-3-pbf.kicad_mod✓ lt3990emse-3-3-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 9d ago
viewers lt3990emse-3-3-pbf: viewers · Ray 9d ago
lt3990emse-3-3-pbf-etched.glb Publish 0.1.0 · Ray 9d ago
lt3990emse-3-3-pbf-etched.step lt3990emse-3-3-pbf: factory component page (tier=mfr) · Ray 9d ago
lt3990emse-3-3-pbf-hero.glb lt3990emse-3-3-pbf: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
lt3990emse-3-3-pbf-hero.overlay.json Publish 0.1.0 · Ray 9d ago
lt3990emse-3-3-pbf.glb Publish 0.1.0 · Ray 9d ago
lt3990emse-3-3-pbf.kicad_mod Publish 0.1.0 · Ray 9d ago
lt3990emse-3-3-pbf.kicad_sym Publish 0.1.0 · Ray 9d ago
lt3990emse-3-3-pbf.lbr Publish 0.1.0 · Ray 9d ago
lt3990emse-3-3-pbf.step Publish 0.1.0 · Ray 9d ago
package.json Publish 0.1.0 · Ray 9d ago
page.json Set visibility: public · Ray 9d ago
README.md Publish 0.1.0 · Ray 9d ago
verification.json Verified: Published by the parts factory: tier mfr, 17 pins · Ray 9d ago

LT3990EMSE-3.3#PBF

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

LT3990EMSE-3.3#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 VOUT input Regulated to 3.3V for the LT3990-3.3, connects to the internal feedback divider, and is tied internally to pin 2 for a redundant output path, so tie the output to both pins.
2 VOUT input Second VOUT pin, connected internally to pin 1 to give a redundant path to the output; tie the output to both pins.
3 NC unconnected No connect, not connected to internal circuitry and must be left floating to ensure fault tolerance.
4 EN/UVLO input Part is in shutdown when low and active when high, with a 1.19V rising threshold and 35mV hysteresis; tie to VIN if unused, and ground it if VIN is below 4.2V.
5 NC unconnected No connect, not connected to internal circuitry and must be left floating to ensure fault tolerance.
6 VIN power_in Supplies current to the internal circuitry and the internal power switch (4.2V to 62V operating) and must be locally bypassed.
7 NC unconnected No connect, not connected to internal circuitry and must be left floating to ensure fault tolerance.
8 GND power_in Ground pin.
9 SW output Output of the internal power switch; connect this pin to the inductor.
10 NC unconnected No connect, not connected to internal circuitry and must be left floating to ensure fault tolerance.
11 BOOST passive Provides a drive voltage higher than the input voltage to the internal bipolar NPN power switch (boost capacitor connects to SW).
12 NC unconnected No connect, not connected to internal circuitry and must be left floating to ensure fault tolerance.
13 BD input Anode of the boost diode, which also supplies current to the internal regulator when BD is above 3.2V.
14 PG output Open-drain output of an internal comparator that stays low until the output is within 10% of final regulation; valid when VIN is above 4.2V and EN/UVLO is high.
15 NC unconnected No connect, not connected to internal circuitry and must be left floating to ensure fault tolerance.
16 RT passive A resistor from RT to ground sets the switching frequency (200kHz to 2.2MHz).
17 GND power_in Exposed pad is ground and 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
Output Voltage (LT3990-3.3) VOUT 3.26 3.3 3.34 V TA = 25°C 3
Output Voltage (LT3990-3.3) over temperature VOUT 3.234 3.3 3.366 V full operating temperature range 3
Minimum Input Voltage VIN 4 4.2 V over full operating temperature range 3
Quiescent Current from VIN, VEN/UVLO Low IQ 0.7 µA VEN/UVLO Low 3
Quiescent Current from VIN, VEN/UVLO High IQ 1.9 2.8 µA VEN/UVLO High 3
Quiescent Current from VIN, VEN/UVLO High, full temp IQ 1.2 4 µA VEN/UVLO High, full temperature range 3
FB/Output Voltage Line Regulation 0.0002 0.01 %/V 4.2V < VIN < 40V 3
Switching Frequency fSW 1.84 2.3 2.76 MHz RT = 41.2k, VIN = 6V 3
Switching Frequency fSW 672 840 1008 kHz RT = 158k, VIN = 6V 3
Switching Frequency fSW 168 210 252 kHz RT = 768k, VIN = 6V 3
Switch Current Limit 535 700 865 mA VIN = 5V, VFB = 0V 3
Catch Schottky Current Limit 360 450 540 mA VIN = 5V 3
Switch VCESAT VCESAT 210 mV ISW = 200mA 3
Switch Leakage Current 0.05 2 µA 3
Catch Schottky Forward Voltage 725 mV ISCH = 100mA, VIN = VBD = NC 3
Catch Schottky Reverse Leakage 0.05 2 µA VSW = 12V 3
Boost Schottky Forward Voltage 900 mV ISCH = 50mA, VIN = NC, VBOOST = 0V 3
Boost Schottky Reverse Leakage 0.02 2 µA VREVERSE = 12V 3
Minimum Boost Voltage 1.4 1.8 V VIN = 5V, full temperature range 3
BOOST Pin Current 8.5 12 mA ISW = 200mA, VBOOST = 15V 3
EN/UVLO Pin Current 1 30 nA VEN/UVLO = 12V 3
EN/UVLO Voltage Threshold 1.14 1.19 1.28 V EN/UVLO Rising, VIN ≥ 4.2V 3
EN/UVLO Voltage Hysteresis 35 mV 3
PG Threshold Offset from Feedback Voltage 6.5 10 13.5 % VFB Rising 3
PG Hysteresis as % of Output Voltage 1 % 3
PG Leakage 0.01 1 µA VPG = 3V 3
PG Sink Current 30 80 µA VPG = 0.4V 3
Minimum Switch On-Time tON(MIN) 115 ns 3
Minimum Switch Off-Time tOFF(MIN) 100 160 ns VIN = 10V 3
BOOST Pin Above SW Pin 30 V 2
FB/VOUT, RT Voltage 6 V 2
PG, BD Voltage 30 V 2
Operating Junction Temperature Range (E-grade) TJ -40 125 °C LT3990E-X 2
Storage Temperature Range Tstg -65 150 °C 2
Lead Temperature (Soldering, 10 sec) 300 °C MS only 2
Thermal Resistance Junction-to-Ambient θJA 40 °C/W MSE package 2
Thermal Resistance Junction-to-Case θJC 10 °C/W MSE package 2

CAD (KiCad official)

  • Symbol: LT3990EMSE-3.3#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: lt3990emse-3-3-pbf-etched.step / lt3990emse-3-3-pbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt3990emse-3-3-pbf.step / lt3990emse-3-3-pbf.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (22 pp, sha256 9b5280ede098d3fb, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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