# NCP45525IMNTWG-H

**onsemi** · AC-DC Controllers & Regulators · DFN-8-EP(2x2)

NCP45525IMNTWG-H from onsemi, in a DFN-8-EP(2x2). 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 | VIN | power_in | Drain of the MOSFET with an input voltage range of 0.5 V to 13.5 V, and pin 1 must be connected to pin 9. |
| 2 | EN | input | For the NCP45525-H this active-high digital input turns on the MOSFET and has an internal pull-down resistor to GND, with VIH of 2 V minimum and VIL of 0.8 V maximum. |
| 3 | VCC | power_in | Supply voltage to the controller, specified at 3.0 V to 5.5 V. |
| 4 | GND | power_in | Controller ground. |
| 5 | BLEED | passive | Load bleed connection that must be tied to VOUT either directly or through a resistor of 100 MΩ or less. |
| 6 | SR | passive | Slew rate adjustment pin for the NCP45525; an external capacitor to GND can reduce the slew rate, and the pin may be left floating if not used. |
| 7 | VOUT | power_out | Source of the MOSFET connected to the load. |
| 8 | VOUT | power_out | Source of the MOSFET connected to the load, bonded in parallel with pin 7. |
| 9 | VIN | power_in | Drain of the MOSFET with an input voltage range of 0.5 V to 13.5 V, and must be connected to pin 1. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | DFN-8-EP(2x2) |
| Category | Power Management ICs |
| Pins | 9 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage Range | VCC | -0.3 |  | 6 | V |  | 2 |
| Input Voltage Range | VIN | -0.3 |  | 18 | V |  | 2 |
| Output Voltage Range | VOUT | -0.3 |  | 18 | V |  | 2 |
| EN Digital Input Range | VEN | -0.3 |  |  | V | upper limit is (VCC + 0.3) V as printed | 2 |
| Thermal Resistance, Junction-to-Ambient, Steady State | RθJA |  |  | 40 | °C/W | surface-mounted on FR4, 1 sq-in pad, 1 oz Cu (Note 2) | 2 |
| Thermal Resistance, Junction-to-Ambient, Steady State | RθJA |  |  | 72.7 | °C/W | surface-mounted on FR4, minimum recommended pad size, 1 oz Cu (Note 3) | 2 |
| Thermal Resistance, Junction-to-Case | RθJC |  |  | 5.3 | °C/W | VIN paddle | 2 |
| Continuous MOSFET Current | IMAX |  |  | 6 | A | TA = 25°C | 2 |
| Transient MOSFET Current | IMAX_TRANS |  |  | 24 | A | for up to 500 s | 2 |
| Total Power Dissipation | PD |  |  | 2.5 | W | TA = 25°C (Notes 2 and 4) | 2 |
| Total Power Dissipation | PD |  |  | 1.37 | W | TA = 25°C (Notes 3 and 4) | 2 |
| Storage Temperature Range | TSTG | -40 |  | 150 | °C |  | 2 |
| Lead Temperature, Soldering | TSLD |  |  | 260 | °C | 10 sec. | 2 |
| ESD Capability, Human Body Model | ESDHBM |  |  | 3 | kV | Notes 5 and 6, TA = 25°C | 2 |
| ESD Capability, Machine Model | ESDMM |  |  | 200 | V | Note 5, TA = 25°C | 2 |
| ESD Capability, Charged Device Model | ESDCDM |  |  | 1 | kV | Note 5, TA = 25°C | 2 |
| Latch-up Current Immunity | LU |  |  | 100 | mA | Notes 5 and 6, TA = 25°C | 2 |
| Supply Voltage | VCC | 3 |  | 5.5 | V |  | 3 |
| Input Voltage | VIN | 0.5 |  | 13.5 | V |  | 3 |
| Ambient Temperature | TA | -40 |  | 85 | °C |  | 3 |
| Junction Temperature | TJ | -40 |  | 125 | °C |  | 3 |
| OFF to ON Transition Energy Dissipation Limit | ETRANS | 0 |  | 100 | mJ | see application section | 3 |
| On-Resistance | RON |  | 18 | 24 | mΩ | VCC = 3.3 V; VIN = 1.8 V | 3 |
| On-Resistance | RON |  | 18.8 | 25 | mΩ | VCC = 3.3 V; VIN = 5 V | 3 |
| On-Resistance | RON |  | 21.9 | 31.7 | mΩ | VCC = 3.3 V; VIN = 12 V | 3 |
| Leakage Current | ILEAK |  | 0.1 | 1 | µA | VEN = 0 V; VIN = 13.5 V (Note 8) | 3 |
| Supply Standby Current | ISTBY |  | 0.65 | 2 | µA | VEN = 0 V; VCC = 3 V (Note 9) | 3 |
| Supply Standby Current | ISTBY |  | 3.2 | 4.5 | µA | VEN = 0 V; VCC = 5.5 V (Note 9) | 3 |
| Supply Dynamic Current | IDYN |  | 180 | 300 | µA | VEN = VCC = 3 V; VIN = 12 V (Note 10) | 3 |
| Supply Dynamic Current | IDYN |  | 475 | 680 | µA | VEN = VCC = 5.5 V; VIN = 1.8 V (Note 10) | 3 |
| Bleed Resistance | RBLEED | 86 | 115 | 144 | Ω | VEN = 0 V; VCC = 3 V | 3 |
| Bleed Resistance | RBLEED | 72 | 97 | 121 | Ω | VEN = 0 V; VCC = 5.5 V | 3 |
| EN Input High Voltage | VIH | 2 |  |  | V | VCC = 3 V - 5.5 V | 3 |
| EN Input Low Voltage | VIL |  |  | 0.8 | V | VCC = 3 V - 5.5 V | 3 |
| EN Input Leakage Current | IIL |  | 90 | 500 | nA | NCP45525-H; VEN = 0 V | 3 |
| EN Pull Down Resistance | RPD | 76 | 100 | 124 | kΩ | NCP45525-H | 3 |
| Slew Rate Control Constant | KSR | 24 | 31 | 38 | µA | NCP45525; VCC = 3 V (Note 13) | 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 |  | the VIN and VOUT pins of the ecoSWITCH to copper | 11 |

## CAD (KiCad official)

- Symbol: `NCP45525IMNTWG-H`
- Footprint: `Package_DFN_QFN:DFN-8-1EP_2x2mm_P0.5mm_EP0.6x1.2mm`
- 3D model: DFN-8-EP(2x2) (KiCad packages3D, STEP)
- 3D model files: `ncp45525imntwg-h-etched.step` / `ncp45525imntwg-h-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ncp45525imntwg-h.step` / `ncp45525imntwg-h.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/ncp45525imntwg-h-d.pdf) (16 pp, sha256 `214fe2c7a1e78893`, retrieved 2026-10-30, 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/ncp45525imntwg-h-datasheet.pdf)