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.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownNCV59745AMW100TAG
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ncv59745amw100tag.step/ncv59745amw100tag.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (12 pp, sha256
0c2c07af4a798eb9, retrieved 2026-10-29, tier: manufacturer) - 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).