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NCV59745AMW1015TAG

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onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, QFN-20(4x4). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)ncv59745amw1015tag
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Contents

README

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NCV59745AMW1015TAG

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · QFN-20(4x4)

NCV59745AMW1015TAG from onsemi, in a QFN-20(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT power_out Regulated output voltage pin. Tied together with pins 19 and 20. Requires a ceramic output capacitor >= 10 uF effective value; output current in excess of 3.0 A; VOUT range 0.8 V to 3.6 V (fixed 1.015 V for the AMW1015TAG suffix).
2 SNS input Output voltage sense input pin. Used by the internal error amplifier to regulate VOUT. Must not be left floating; connect at/near the load-side of OUT for Kelvin sensing.
3 NC unconnected No connection. True NC pin - may be left floating or tied to GND for improved thermal contact to the PCB top-side plane.
4 PG output Power-Good open-drain, active-high output. High-impedance when VOUT exceeds the PG trip threshold (~91% of VOUT typ), low-impedance below it. Requires a 10 kOhm to 100 kOhm external pull-up to a rail up to 5.5 V; may be left floating if unused. PG sink current 0 to 1.5 mA; VPG,LO <= 0.3 V at 1 mA.
5 NC unconnected No connection. True NC pin - may be left floating or tied to GND for improved thermal contact to the PCB top-side plane.
6 NC unconnected No connection. True NC pin - may be left floating or tied to GND for improved thermal contact to the PCB top-side plane.
7 NC unconnected No connection. True NC pin - may be left floating or tied to GND for improved thermal contact to the PCB top-side plane.
8 GND power_in Device ground. Must be connected to the PCB ground plane along with pin 18 and the exposed thermal pad.
9 NC unconnected No connection. True NC pin - may be left floating or tied to GND for improved thermal contact to the PCB top-side plane.
10 NC unconnected No connection. True NC pin - may be left floating or tied to GND for improved thermal contact to the PCB top-side plane.
11 NC unconnected No connection. True NC pin - may be left floating or tied to GND for improved thermal contact to the PCB top-side plane.
12 BIAS power_in Bias input voltage powering the error amplifier, VREF reference, and internal control circuitry. VBIAS range 2.2 V to 5.5 V; recommended CBIAS >= 1 uF ceramic connected directly at the pin. Absolute max -0.3 V to +6 V.
13 SS passive Soft-Start programming pin. External capacitor CSS to GND sets the soft-start ramp time per tSS[ms] = CSS[nF] x 0.13 (max recommended CSS = 1 uF). Charged by ISS ~ 6.2 x VOUT(NOM)/0.8V uA. Absolute max -0.3 V to (VBIAS+0.3) V, <= 6 V.
14 EN input Enable input. Drive high (VEN,HI >= 1.1 V) to enable the regulator; drive low (VEN,LO <= 0.4 V) for shutdown. Must not be left floating; features 100 mV hysteresis and 20 us deglitch. IEN ~ 0.3 uA @ VEN = 5 V. Absolute max -0.3 V to +6 V.
15 IN power_in Unregulated input voltage to the pass device. Pins 15, 16, 17 must be tied together. VIN range 0.8 V to 5.5 V (VIN >= VOUT + VDO); recommended CIN >= 4.7 uF ceramic connected directly at the pin. Absolute max -0.3 V to +6 V.
16 IN power_in Unregulated input voltage to the pass device. Tied together with pins 15 and 17.
17 IN power_in Unregulated input voltage to the pass device. Tied together with pins 15 and 16.
18 GND power_in Device ground. Must be connected to the PCB ground plane along with pin 8 and the exposed thermal pad.
19 OUT power_out Regulated output voltage pin. Tied together with pins 1 and 20.
20 OUT power_out Regulated output voltage pin. Tied together with pins 1 and 19.
21 PAD power_in Exposed thermal pad on the bottom of the QFNW20 package. Must be soldered to the PCB ground plane for increased thermal performance (RthetaJA = 40 C/W with recommended thermal-via array).

Key specifications

Parameter Value
Manufacturer onsemi
Package QFN-20(4x4)
Category Power Management (PMIC)
Pins 21

Ordering variants

Same part, different packaging or reel option.

  • NCV59745AMW100TAG
  • NCV59745AMW1015TAG
  • NCV59745AMW180TAG
  • NCV59745AMW1015TAGAMW250TAG

CAD (KiCad official)

  • Symbol: NCV59745AMW1015TAG
  • Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • 3D model: QFN-20(4x4) (KiCad packages3D, STEP)
  • 3D model files: ncv59745amw1015tag-etched.step / ncv59745amw1015tag-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncv59745amw1015tag.step / ncv59745amw1015tag.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (12 pp, sha256 04b620a2c3bcc9d9, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF