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LM43603AQPWPRQ1
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# LM43603AQPWPRQ1++**Texas Instruments** · DC-DC Converters · HTSSOP-16-EP++LM43603AQPWPRQ1 from Texas Instruments, in a HTSSOP-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 | SW | output | Switching output of regulator internally connected to both power MOSFETs; connect to power inductor. |+| 2 | SW | output | Switching output of regulator internally connected to both power MOSFETs; connect to power inductor. |+| 3 | CBOOT | passive | Bootstrap capacitor connection for high-side driver; connect 470-nF capacitor from CBOOT to SW. |+| 4 | VCC | power_out | Internal bias supply output for bypassing; connect bypass capacitor to AGND, do not connect external loading, never short to ground during operation. |+| 5 | BIAS | power_in | Optional internal LDO supply input with voltage range 3.3V to 28V or VIN; place bypass capacitor 1-10µF to ground when used, tie to ground when not in use, voltage must not exceed VIN. |+| 6 | SYNC | input | Clock input to synchronize switching action to external clock; use high-speed termination to prevent ringing, connect to ground if not used, do not float. |+| 7 | RT | input | Connect resistor from this pin to AGND to program switching frequency; leave floating for 500 kHz default switching frequency. |+| 8 | PGOOD | output | Open drain output for power-good flag; use 10-kΩ to 100-kΩ pullup resistor to logic rail or DC voltage no higher than 12V. |+| 9 | FB | input | Feedback sense input pin connected to midpoint of feedback divider to set VOUT; do not short to ground during operation. |+| 10 | AGND | power_in | Analog ground pin providing ground reference for internal references and logic; connect to system ground. |+| 11 | SS/TRK | input | Soft-start control pin; leave floating for internal soft-start slew rate, connect to capacitor to extend soft start time, or connect external voltage ramp for tracking. |+| 12 | EN | input | Enable input to internal LDO and regulator with high = ON and low = OFF; connect to VIN, resistor divider, or external voltage source, do not float. |+| 13 | VIN | power_in | Supply input pin to internal LDO and high side power FET with voltage range 3.5V to 36V (absolute maximum 42V); connect to power supply and bypass capacitors CIN with path as short as possible. |+| 14 | VIN | power_in | Supply input pin to internal LDO and high side power FET with voltage range 3.5V to 36V (absolute maximum 42V); connect to power supply and bypass capacitors CIN with path as short as possible. |+| 15 | PGND | power_in | Power ground pin connected internally to low side power FET; connect to system ground, PAD, AGND, and ground pins of CIN and COUT with path as short as possible. |+| 16 | PGND | power_in | Power ground pin connected internally to low side power FET; connect to system ground, PAD, AGND, and ground pins of CIN and COUT with path as short as possible. |+| 17 | PAD | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-16-EP |+| Category | Power Supply Chip |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `LM43603AQPWPRQ1`+- Footprint: `Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm`+- 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)+- 3D model files: `lm43603aqpwprq1-etched.step` / `lm43603aqpwprq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm43603aqpwprq1.step` / `lm43603aqpwprq1.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm43603-q1) (50 pp, sha256 `a594b61b24d8e622`, retrieved 2026-10-05, 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-4-5-20251001` (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](docs/lm43603aqpwprq1-datasheet.pdf)
page.jsonadded+215@@ -0,0 +1,215 @@+{+ "slug": "lm43603aqpwprq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, HTSSOP-16-EP. 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connect to power inductor."+ },+ {+ "number": "2",+ "name": "SW",+ "type": "output",+ "description": "Switching output of regulator internally connected to both power MOSFETs; connect to power inductor."+ },+ {+ "number": "3",+ "name": "CBOOT",+ "type": "passive",+ "description": "Bootstrap capacitor connection for high-side driver; connect 470-nF capacitor from CBOOT to SW."+ },+ {+ "number": "4",+ "name": "VCC",+ "type": "power_out",+ "description": "Internal bias supply output for bypassing; connect bypass capacitor to AGND, do not connect external loading, never short to ground during operation."+ },+ {+ "number": "5",+ "name": "BIAS",+ "type": "power_in",+ "description": "Optional internal LDO supply input with voltage range 3.3V to 28V or VIN; place bypass capacitor 1-10µF to ground when used, tie to ground when not in use, voltage must not exceed VIN."+ },+ {+ "number": "6",+ "name": "SYNC",+ "type": "input",+ "description": "Clock input to synchronize switching action to external clock; use high-speed termination to prevent ringing, connect to ground if not used, do not float."+ },+ {+ "number": "7",+ "name": "RT",+ "type": "input",+ "description": "Connect resistor from this pin to AGND to program switching frequency; leave floating for 500 kHz default switching frequency."+ },+ {+ "number": "8",+ "name": "PGOOD",+ "type": "output",+ "description": "Open drain output for power-good flag; use 10-kΩ to 100-kΩ pullup resistor to logic rail or DC voltage no higher than 12V."+ },+ {+ "number": "9",+ "name": "FB",+ "type": "input",+ "description": "Feedback sense input pin connected to midpoint of feedback divider to set VOUT; do not short to ground during operation."+ },+ {+ "number": "10",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground pin providing ground reference for internal references and logic; connect to system ground."+ },+ {+ "number": "11",+ "name": "SS/TRK",+ "type": "input",+ "description": "Soft-start control pin; leave floating for internal soft-start slew rate, connect to capacitor to extend soft start time, or connect external voltage ramp for tracking."+ },+ {+ "number": "12",+ "name": "EN",+ "type": "input",+ "description": "Enable input to internal LDO and regulator with high = ON and low = OFF; connect to VIN, resistor divider, or external voltage source, do not float."+ },+ {+ "number": "13",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply input pin to internal LDO and high side power FET with voltage range 3.5V to 36V (absolute maximum 42V); connect to power supply and bypass capacitors CIN with path as short as possible."+ },+ {+ "number": "14",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply input pin to internal LDO and high side power FET with voltage range 3.5V to 36V (absolute maximum 42V); connect to power supply and bypass capacitors CIN with path as short as possible."+ },+ {+ "number": "15",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground pin connected internally to low side power FET; connect to system ground, PAD, AGND, and ground pins of CIN and COUT with path as short as possible."+ },+ {+ "number": "16",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground pin connected internally to low side power FET; connect to system ground, PAD, AGND, and ground pins of CIN and COUT with path as short as possible."+ },+ {+ "number": "17",+ "name": "PAD",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Exposed PAD (listed as 'PAD - -' without pin number in datasheet) serves as low impedance connection",+ "exposed pad 17 added from the footprint"+ ],+ "pages_sent": 8,+ "cost_usd": 0.1184,+ "at": "2026-10-05T23:13:03"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm43603-q1",+ "pages": 50,+ "sha256": "a594b61b24d8e622",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 17,+ "described": 17,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}