component
NCV59745AMW100TAG
Public Made by Adomby adom
onsemi Linear Voltage Regulators (LDO), QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+111@@ -0,0 +1,111 @@+# NCV59745AMW100TAG++**onsemi** · Linear Voltage Regulators (LDO) · QFN-20-EP(4x4)++NCV59745AMW100TAG from onsemi, in a QFN-20-EP(4x4). 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 | OUT | power_out | Regulated output voltage; the datasheet recommends an output capacitor of at least 10 µF (effective value). |+| 2 | SNS | input | Output voltage sense input that must not be left floating; absolute maximum VSNS is −0.3 V to +6 V. |+| 3 | NC | unconnected | No connection; a true NC pin that can be left floating or connected to GND for better thermal contact to the PCB top-side plane. |+| 4 | PG | output | Open-drain, active-high power-good output that goes high-impedance when VOUT exceeds the PG trip threshold; use a 10 kΩ to 100 kΩ pull-up to a supply up to 5.5 V (may be higher than VIN), or leave floating if not used. |+| 5 | NC | unconnected | No connection; a true NC pin that can be left floating or connected to GND for better thermal contact to the PCB top-side plane. |+| 6 | NC | unconnected | No connection; a true NC pin that can be left floating or connected to GND for better thermal contact to the PCB top-side plane. |+| 7 | NC | unconnected | No connection; a true NC pin that can be left floating or connected to GND for better thermal contact to the PCB top-side plane. |+| 8 | GND | power_in | Ground pin that must be connected to ground. |+| 9 | NC | unconnected | No connection; a true NC pin that can be left floating or connected to GND for better thermal contact to the PCB top-side plane. |+| 10 | NC | unconnected | No connection; a true NC pin that can be left floating or connected to GND for better thermal contact to the PCB top-side plane. |+| 11 | NC | unconnected | No connection; a true NC pin that can be left floating or connected to GND for better thermal contact to the PCB top-side plane. |+| 12 | BIAS | power_in | Bias input for the error amplifier, reference and internal control circuits; recommended range is VOUT + 1.6 V to 5.5 V. |+| 13 | SS | passive | Soft-start pin; a capacitor to ground sets the soft-start time, with a maximum recommended CSS of 1 µF. |+| 14 | EN | input | Enable pin: driving high enables the regulator and driving low (≤ 0.4 V) puts it in shutdown; it must not be left floating. |+| 15 | IN | power_in | Unregulated voltage input to the device; recommended VIN range is VOUT + VDO to 5.5 V, absolute maximum −0.3 V to +6 V. |+| 16 | IN | power_in | Unregulated voltage input to the device; recommended VIN range is VOUT + VDO to 5.5 V, absolute maximum −0.3 V to +6 V. |+| 17 | IN | power_in | Unregulated voltage input to the device; recommended VIN range is VOUT + VDO to 5.5 V, absolute maximum −0.3 V to +6 V. |+| 18 | GND | power_in | Ground pin that must be connected to ground. |+| 19 | OUT | power_out | Regulated output voltage; the datasheet recommends an output capacitor of at least 10 µF (effective value). |+| 20 | OUT | power_out | Regulated output voltage; the datasheet recommends an output capacitor of at least 10 µF (effective value). |+| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | QFN-20-EP(4x4) |+| Category | Power Management ICs |+| Pins | 21 |++## 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 voltage range (absolute) | VIN | -0.3 | | 6 | V | | 3 |+| Bias voltage range (absolute) | VBIAS | -0.3 | | 6 | V | | 3 |+| Enable voltage range (absolute) | VEN | -0.3 | | 6 | V | | 3 |+| Power-good voltage range (absolute) | VPG | -0.3 | | 6 | V | | 3 |+| PG sink current | IPG | 0 | | 1.5 | mA | | 3 |+| SS pin voltage range (absolute) | VSS | -0.3 | | 6 | V | Printed as (VBIAS + 0.3) ≤ 6 V | 3 |+| Output sense pin voltage range (absolute) | VSNS | -0.3 | | 6 | V | | 3 |+| Output voltage range (absolute) | VOUT | -0.3 | | 6 | V | Printed as (VIN + 0.3) ≤ 6 V | 3 |+| Maximum junction temperature | TJMAX | | | 150 | °C | | 3 |+| Storage junction temperature range | TSTG | -55 | | 150 | °C | | 3 |+| ESD capability, human body model | ESDHBM | | | 2000 | V | AEC-Q100-002 | 3 |+| ESD capability, charged device model | ESDCDM | | | 1000 | V | AEC-Q100-011 | 3 |+| Latch-up current maximum rating | | -100 | | 100 | mA | AEC-Q100-004 | 3 |+| Input voltage (recommended) | VIN | | | 5.5 | V | Printed minimum is VOUT + VDO | 3 |+| Bias voltage (recommended) | VBIAS | | | 5.5 | V | Printed minimum is VOUT + 1.6 | 3 |+| Junction temperature (recommended) | TJ | -40 | | 125 | °C | | 3 |+| Input voltage range | VIN | | | 5.5 | V | Printed minimum is VOUT + VDO | 4 |+| Bias pin voltage range | VBIAS | | | 5.5 | V | Printed minimum is VOUT + 1.4 | 4 |+| Undervoltage lockout, VBIAS rising | UVLO | 1.2 | 1.5 | 2 | V | VBIAS rising | 4 |+| Output voltage accuracy | VOUT | -1 | 0.3 | 1 | % | 2.4 V ≤ VBIAS ≤ 5.25 V, VOUT + 1.6 V ≤ VBIAS; 50 mA ≤ IOUT ≤ 3.0 A; typ printed as ±0.3 | 4 |+| VIN dropout voltage | VDO | | 105 | 195 | mV | IOUT = 3.0 A, VBIAS − VOUT(NOM) = 1.6 V | 4 |+| VBIAS dropout voltage | | | 1.2 | 1.4 | V | IOUT = 3.0 A, VIN = VBIAS | 4 |+| Current limit | ICL | 3.5 | 4.3 | 7 | A | VOUT = 80% x VOUT(NOM) | 4 |+| Bias pin current | IBIAS | | 1.3 | 2 | mA | 0 mA ≤ IOUT ≤ 3.0 A | 4 |+| VBIAS shutdown current | IBSHDN | | 1 | 15 | µA | VEN ≤ 0.4 V | 4 |+| VIN shutdown current | IINSHDN | | 1 | 15 | µA | VEN ≤ 0.4 V, VOUT = 0 V | 4 |+| Sense pin current | ISNS | -250 | 95 | 250 | nA | 0 mA ≤ IOUT ≤ 3.0 A | 4 |+| Enable input high level | VEN, HI | 1.1 | | 5.5 | V | | 4 |+| Enable input low level | VEN, LO | 0 | | 0.4 | V | | 4 |+| Enable pin current | IEN | | 0.3 | 1 | µA | VEN = 5 V | 4 |+| PG trip threshold, VOUT decreasing | VIT− | 82 | 88 | 93 | %VOUT | VOUT decreasing | 4 |+| PG trip threshold, VOUT increasing | VIT+ | 83 | 91 | 96 | %VOUT | VOUT increasing | 4 |+| PG leakage current | IPG, LKG | | 0.03 | 1 | µA | VPG = 5.25 V, VOUT > VIT | 4 |+| Junction-to-ambient thermal resistance | RJA | | 40 | | °C/W | JEDEC JESD51 high-K board, natural convection | 3 |+| Junction-to-board thermal resistance | RJB | | 3.6 | | °C/W | | 3 |+| Junction-to-case (top) thermal resistance | RJC(top) | | 27 | | °C/W | | 3 |+| Junction-to-case (bottom) thermal resistance | RJC(bot) | | 3.6 | | °C/W | | 3 |+| Characterisation parameter, junction-to-top | JT | | 1 | | °C/W | | 3 |+| Characterisation parameter, junction-to-board | JB | | 3.5 | | °C/W | | 3 |++## Materials and finish++As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).++| Part | Material | Colour / plating | Datasheet says | Page |+|---|---|---|---|---|+| contacts | copper | | pins directly in the device PCB copper layer, not through | 9 |++## CAD (KiCad official)++- Symbol: `NCV59745AMW100TAG`+- Footprint: `Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm`+- 3D model: QFN-20-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `ncv59745amw100tag-etched.step` / `ncv59745amw100tag-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ncv59745amw100tag.step` / `ncv59745amw100tag.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/download/data-sheet/pdf/ncv59745-d.pdf) (12 pp, sha256 `0c2c07af4a798eb9`, retrieved 2026-10-29, tier: manufacturer)+- **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](docs/ncv59745amw100tag-datasheet.pdf)
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