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LM2903XM

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Jiangsu RUNIC Tech Comparators, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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LM2903XM

Jiangsu RUNIC Tech · Comparators · MSOP-8

LM2903XM from Jiangsu RUNIC Tech, in a MSOP-8. 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 OUTA output Open-drain output of comparator channel A that requires an external pull-up resistor, with signal output currents limited to -55 mA to 55 mA by the absolute maximum ratings.
2 -INA input Inverting input of comparator channel A; input terminals are diode-clamped to the supply rails, and signals that swing more than 0.5 V beyond the rails should be current-limited to 10 mA or less.
3 +INA input Noninverting input of comparator channel A; the common-mode input voltage range is (V-) to (V+) - 1.5 V at 25°C and (V-) to (V+) - 2.0 V over -40°C to +125°C.
4 V- power_in Negative (lowest) power supply pin, which is the lower rail of the supply span (V+) - (V-) of 3.3 V to 36 V.
5 +INB input Noninverting input of comparator channel B; the common-mode input voltage range is (V-) to (V+) - 1.5 V at 25°C and (V-) to (V+) - 2.0 V over -40°C to +125°C.
6 -INB input Inverting input of comparator channel B; input terminals are diode-clamped to the supply rails, and signals that swing more than 0.5 V beyond the rails should be current-limited to 10 mA or less.
7 OUTB output Open-drain output of comparator channel B that requires an external pull-up resistor, with signal output currents limited to -55 mA to 55 mA by the absolute maximum ratings.
8 V+ power_in Positive (highest) power supply pin; the supply span (V+) - (V-) is 3.3 V to 36 V with a 36 V absolute maximum.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package MSOP-8
Category Amplifiers/Comparators
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Vs Operating Voltage Range Vs 3.3 36 V 6
IQ Quiescent Current IQ 110 180 uA VS=5V, no load 6
IQ Quiescent Current IQ 150 uA VS=36V, no load; TA=-40C to +125C 6
Input offset voltage VOS -3.5 0.8 3.5 mV VS=5V to 36V 6
Input offset voltage VOS -4 4 mV TA=-40C to +125C 6
Input Bias Current IB 10 50 pA TA=25C 6
Input Bias Current IB 100 nA TA=-40C to +125C 6
Input Offset Current IOS 10 50 pA TA=25C 6
Input Offset Current IOS 100 nA TA=-40C to +125C 6
Large signal differential voltage amplification AVD 50 200 V/mV VS=15V, Vo=1.4V to 11.4V, RL>=15k to (V+) 6
Low-Level output voltage VOL 200 300 mV Isink<=4mA, VID=-1V 6
Output Current (sinking) IOL 6 23 mA VO=1.5V; VID=-1V; Vs=5V 6
High-Level Output Leakage Current IOH-LKG 400 nA (V+)=Vo=5V; VID=1V 6
High-Level Output Leakage Current IOH-LKG 500 nA (V+)=Vo=36V; VID=1V 6
Propagation Delay H To L TPHL 2.5 us Vs=5V; RPU=5.1KΩ; Overdrive=10mV 6
Propagation Delay H To L TPHL 0.5 us Vs=5V; RPU=5.1KΩ; Overdrive=100mV 6
Propagation Delay H To L TPHL 1.8 us Vs=36V; RPU=5.1KΩ; Overdrive=10mV 6
Propagation Delay H To L TPHL 0.7 us Vs=36V; RPU=5.1KΩ; Overdrive=100mV 6
Propagation Delay L To H TPLH 4.1 us Vs=5V; RPU=5.1KΩ; Overdrive=10mV 6
Propagation Delay L To H TPLH 1.6 us Vs=5V; RPU=5.1KΩ; Overdrive=100mV 6
Propagation Delay L To H TPLH 3.1 us Vs=36V; RPU=5.1KΩ; Overdrive=10mV 6
Propagation Delay L To H TPLH 1.4 us Vs=36V; RPU=5.1KΩ; Overdrive=100mV 6
Supply voltage Vs = (V+) - (V-), single-supply Vs 3.3 36 V Single-supply 4
Supply voltage Vs = (V+) - (V-), dual-supply Vs 1.65 18 V Dual-supply, printed as ±1.65 / ±18 4
Supply voltage Vs=(V+)-(V-) Vs 36 V 4
Signal input pin (IN+, IN-) current -10 10 mA Signal input pin (IN+, IN-) 4
Signal output pin current -55 55 mA Signal output pin 4
Operating range, free-air temperature TA -40 125 °C 4
Junction temperature TJ -40 150 °C 4
Storage temperature Tstg -65 150 °C 4
Electrostatic discharge, human-body model V(ESD) -2000 2000 V HBM, per ANSI/ESDA/JEDEC JS-001, all pins 4
Electrostatic discharge, charged device model V(ESD) -1000 1000 V CDM, per JEDEC JESD22-C101, all pins 4
Junction-to-ambient thermal resistance RϴJA 165 °C/W MSOP-8 4
Junction-to-case(top) thermal resistance RϴJC(top) 53 °C/W MSOP-8 4
Junction-to-board thermal resistance RϴJB 87 °C/W MSOP-8 4
Junction-to-top characterization parameter ΨJT 4.9 °C/W MSOP-8 4
Junction-to-board characterization parameter ΨJB 85 °C/W MSOP-8 4

CAD (KiCad official)

  • Symbol: LM2903XM
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: lm2903xm-etched.step / lm2903xm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2903xm.step / lm2903xm.glb are the bare package body.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (13 pp, sha256 75b4b671a70b102e, retrieved 2026-10-15, 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