component
LM53603AQPWPRQ1
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 @@+# LM53603AQPWPRQ1++**Texas Instruments** · DC-DC Converters · HTSSOP-16-EP++LM53603AQPWPRQ1 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 | Regulator switch node. Connect to power inductor. Connect pins 1 and 2 directly together at the PCB. |+| 2 | SW | output | Regulator switch node. Connect to power inductor. Connect pins 1 and 2 directly together at the PCB. |+| 3 | CBOOT | power_in | Bootstrap supply input for gate drivers. Connect a high quality 470 nF capacitor from this pin to SW. |+| 4 | VCC | power_out | Internal 3.15 V regulator output. Used as supply to internal control circuits. Do not connect to any external loads. Can be used as logic supply for control inputs. Connect a high quality 3.3 µF capacitor from this pin to GND. |+| 5 | BIAS | power_in | Input to internal voltage regulator. Connect to output voltage point. Do not ground. Connect a high quality 0.1 µF capacitor from this pin to GND. |+| 6 | SYNC | input | Synchronization input to regulator. Used to synchronize the regulator switching frequency to the system clock. When not used connect to GND; do not float. |+| 7 | FPWM | input | Mode control input to regulator. High = forced PWM (FPWM). Low = auto mode; automatic transition between PFM and PWM. Do not float. |+| 8 | RESET | output | Open drain reset output. Connect to suitable voltage supply through a current limiting resistor. High = power OK. Low = fault. RESET will go low when EN = low. |+| 9 | FB | input | Feedback input to regulator. Connect to output voltage sense point for fixed 5 V and 3.3 V output. Connect to feedback divider tap point for ADJ option. Do not float or ground. |+| 10 | AGND | power_in | Analog ground for regulator and system. All electrical parameters are measured with respect to this pin. Connect to EP and PGND on PCB. |+| 11 | EN | input | Enable input to the regulator. High = ON. Low = OFF. Can be connected directly to VIN. Do not float. |+| 12 | VIN | power_in | Input supply to the regulator. Connect a high quality bypass capacitor(s) from this pin to PGND. Connect pins 12 and 13 directly together at the PCB. |+| 13 | VIN | power_in | Input supply to the regulator. Connect a high quality bypass capacitor(s) from this pin to PGND. Connect pins 12 and 13 directly together at the PCB. |+| 14 | N/C | unconnected | This pin has no connection to the device. |+| 15 | PGND | power_in | Power ground to internal low side MOSFET. Connect to AGND and system ground. Connect pins 15 and 16 directly together at the PCB. |+| 16 | PGND | power_in | Power ground to internal low side MOSFET. Connect to AGND and system ground. Connect pins 15 and 16 directly together at the PCB. |+| 17 | EP | power_in | Exposed die attach paddle. Connect to ground plane for adequate heat sinking and noise reduction. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-16-EP |+| Category | Power Supply Chip |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `LM53603AQPWPRQ1`+- Footprint: `Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm`+- 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)+- 3D model files: `lm53603aqpwprq1-etched.step` / `lm53603aqpwprq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm53603aqpwprq1.step` / `lm53603aqpwprq1.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/lm53602-q1) (42 pp, sha256 `b2d0d78814aaf2aa`, retrieved 2026-10-06, 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/lm53603aqpwprq1-datasheet.pdf)
page.jsonadded+212@@ -0,0 +1,212 @@+{+ "slug": "lm53603aqpwprq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, HTSSOP-16-EP. 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Connect to power inductor. Connect pins 1 and 2 directly together at the PCB."+ },+ {+ "number": "2",+ "name": "SW",+ "type": "output",+ "description": "Regulator switch node. Connect to power inductor. Connect pins 1 and 2 directly together at the PCB."+ },+ {+ "number": "3",+ "name": "CBOOT",+ "type": "power_in",+ "description": "Bootstrap supply input for gate drivers. Connect a high quality 470 nF capacitor from this pin to SW."+ },+ {+ "number": "4",+ "name": "VCC",+ "type": "power_out",+ "description": "Internal 3.15 V regulator output. Used as supply to internal control circuits. Do not connect to any external loads. Can be used as logic supply for control inputs. Connect a high quality 3.3 µF capacitor from this pin to GND."+ },+ {+ "number": "5",+ "name": "BIAS",+ "type": "power_in",+ "description": "Input to internal voltage regulator. Connect to output voltage point. Do not ground. Connect a high quality 0.1 µF capacitor from this pin to GND."+ },+ {+ "number": "6",+ "name": "SYNC",+ "type": "input",+ "description": "Synchronization input to regulator. Used to synchronize the regulator switching frequency to the system clock. When not used connect to GND; do not float."+ },+ {+ "number": "7",+ "name": "FPWM",+ "type": "input",+ "description": "Mode control input to regulator. High = forced PWM (FPWM). Low = auto mode; automatic transition between PFM and PWM. Do not float."+ },+ {+ "number": "8",+ "name": "RESET",+ "type": "output",+ "description": "Open drain reset output. Connect to suitable voltage supply through a current limiting resistor. High = power OK. Low = fault. RESET will go low when EN = low."+ },+ {+ "number": "9",+ "name": "FB",+ "type": "input",+ "description": "Feedback input to regulator. Connect to output voltage sense point for fixed 5 V and 3.3 V output. Connect to feedback divider tap point for ADJ option. Do not float or ground."+ },+ {+ "number": "10",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground for regulator and system. All electrical parameters are measured with respect to this pin. Connect to EP and PGND on PCB."+ },+ {+ "number": "11",+ "name": "EN",+ "type": "input",+ "description": "Enable input to the regulator. High = ON. Low = OFF. Can be connected directly to VIN. Do not float."+ },+ {+ "number": "12",+ "name": "VIN",+ "type": "power_in",+ "description": "Input supply to the regulator. Connect a high quality bypass capacitor(s) from this pin to PGND. Connect pins 12 and 13 directly together at the PCB."+ },+ {+ "number": "13",+ "name": "VIN",+ "type": "power_in",+ "description": "Input supply to the regulator. Connect a high quality bypass capacitor(s) from this pin to PGND. Connect pins 12 and 13 directly together at the PCB."+ },+ {+ "number": "14",+ "name": "N/C",+ "type": "unconnected",+ "description": "This pin has no connection to the device."+ },+ {+ "number": "15",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground to internal low side MOSFET. Connect to AGND and system ground. Connect pins 15 and 16 directly together at the PCB."+ },+ {+ "number": "16",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground to internal low side MOSFET. Connect to AGND and system ground. Connect pins 15 and 16 directly together at the PCB."+ },+ {+ "number": "17",+ "name": "EP",+ "type": "power_in",+ "description": "Exposed die attach paddle. Connect to ground plane for adequate heat sinking and noise reduction."+ }+ ],+ "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": [],+ "pages_sent": 11,+ "cost_usd": 0.1603,+ "at": "2026-10-06T03:54:43"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm53602-q1",+ "pages": 42,+ "sha256": "b2d0d78814aaf2aa",+ "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]"+ }+}