component
AMC3311QDWERQ1
Public Made by Adomby adom
Texas Instruments Others, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAMC3311QDWERQ1
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);amc3311qdwerq1.step/amc3311qdwerq1.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).