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AMC3311QDWERQ1

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Texas Instruments Others, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AMC3311QDWERQ1

Texas Instruments · Others · SOIC-16

AMC3311QDWERQ1 from Texas Instruments, in a SOIC-16. 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 DCDC_OUT power_out High-side output of the isolated DC/DC converter, to be connected to the HLDO_IN pin.
2 DCDC_HGND power_in High-side ground reference for the isolated DC/DC converter, to be connected to the HGND pin.
3 HLDO_IN power_in Input of the high-side low-dropout (LDO) regulator, to be connected to the DCDC_OUT pin.
4 NC unconnected No internal connection; connect this pin to high-side ground or leave it floating.
5 HLDO_OUT power_out Output of the high-side LDO, which supplies the high-side circuitry.
6 IN input Single-ended analog input, referenced to HGND, with a linear full-scale range of -0.1 V to 2 V.
7 HGND power_in High-side analog ground, to be connected to the DCDC_HGND pin together with pin 8.
8 HGND power_in High-side analog ground, to be connected to the DCDC_HGND pin together with pin 7.
9 GND power_in Low-side analog ground, to be connected to the DCDC_GND pin.
10 OUTN output Inverting analog output of the differential output pair (OUTP minus OUTN equals the input voltage at nominal gain of 1).
11 OUTP output Non-inverting analog output of the differential output pair (OUTP minus OUTN equals the input voltage at nominal gain of 1).
12 VDD power_in Low-side supply voltage, 3.0 V to 5.5 V (3.3 V or 5 V nominal) referenced to GND.
13 LDO_OUT power_out Output of the low-side LDO, to be connected to the DCDC_IN pin.
14 DIAG output Active-low, open-drain status output; connect to a pull-up supply (for example VDD) through a resistor, or leave open if unused.
15 DCDC_GND power_in Low-side ground reference for the isolated DC/DC converter, to be connected to the GND pin.
16 DCDC_IN power_in Low-side input of the isolated DC/DC converter, to be connected to the LDO_OUT pin.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16
Category Others
Pins 16

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Input bias current IIB -15 3.5 15 nA IN = HGND, TA = 25°C 8
Common-mode output voltage VCMout 1.39 1.44 1.49 V 8
Input offset voltage VOS -1 0.1 1 mV TA = 25°C, IN = HGND 8
Input offset voltage drift TCVOS -10 3 10 µV/°C 8
Gain error EG -0.2 0.05 0.2 % TA = 25°C 8
Gain error drift TCEG -40 5 40 ppm/°C 8
Nonlinearity -0.02 0.01 0.02 % 8
Failsafe differential output voltage VFAILSAFE -2.6 -2.5 V VDCDC_OUT ≤ VDCDCUV 或 VHLDO_OUT ≤ VHLDOUV 8
Common-mode transient immunity CMTI 85 135 kV/µs 8
DC/DC output voltage VDCDC_OUT 3.1 3.4 4.65 V DCDC_OUT to HGND 9
High-side LDO output voltage (no external load) VHLDO_OUT 3 3.2 3.4 V HLDO to HGND, no external load 9
High-side LDO output voltage (4 mA external load) VHLDO_OUT 3 3.2 3.4 V HLDO to HGND, 4mA external load, VDD > 3.6V 9

CAD (KiCad official)

  • Symbol: AMC3311QDWERQ1
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: amc3311qdwerq1-etched.step / amc3311qdwerq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); amc3311qdwerq1.step / amc3311qdwerq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 71e34b4262ba6148, retrieved 2026-10-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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