# SLM5418EJ-7G

**Sillumin** · DC-DC Converters · QFN-10(1.4x1.8)

SLM5418EJ-7G from Sillumin, in a QFN-10(1.4x1.8). 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 | GND | power_in | Power ground. |
| 2 | EN | input | Enable input; set high (above about 0.9V) to enable the device, floating or pulled low disables it, with an internal 1MΩ resistor to ground. |
| 3 | CTL | input | Analog input voltage; the VOUT2 voltage will be -1x the CTL pin voltage. |
| 4 | NC | unconnected | No connect; leave this pin open. |
| 5 | VOUT2 | power_out | Negative linear regulator output (0V to VOUT1, up to 240mA typical current limit); a decoupling capacitor is needed. |
| 6 | GND | power_in | Power ground. |
| 7 | VOUT1 | power_out | Negative charge pump output (equal to -VIN unregulated); a decoupling capacitor is needed. |
| 8 | CN | passive | Negative terminal of the fly capacitor. |
| 9 | CP | passive | Positive terminal of the fly capacitor. |
| 10 | IN | power_in | Input power supply pin (2.3V to 5.5V); a decoupling capacitor is needed to prevent large voltage spikes at the input. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Sillumin |
| Package | QFN-10(1.4x1.8) |
| Category | Power Management |
| Pins | 10 |

## 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 | VIN | -0.3 |  | 6 | V |  | 2 |
| All Other Pins |  | -0.3 |  | 6 | V |  | 2 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 2 |
| Lead Temperature |  |  |  | 260 | °C |  | 2 |
| Continuous Power Dissipation | PD |  |  | 1.47 | W | TA = +25°C | 2 |
| Storage Temperature | TSTG | -65 |  | 150 | °C |  | 2 |
| Thermal Resistance junction-ambient | θJA |  | 140 |  | °C/W | QFN-10(1.4mmx1.8mm), JESD51-7 | 2 |
| Thermal Resistance junction-case | θJC |  | 30 |  | °C/W | QFN-10(1.4mmx1.8mm), JESD51-7 | 2 |
| VIN Range | VIN | 2.3 |  | 5.5 | V |  | 4 |
| Supply current (shutdown) | ISD |  |  | 2 | uA | VEN =0V, VIN=3.3V | 4 |
| Supply current (switching) |  |  | 2.8 |  | mA | VEN =3.3V, no load, TJ=+25°C | 4 |
| Supply current (switching) |  |  |  | 3.3 | mA | VEN =3.3V, no load, TJ > -40°C & TJ < +125°C | 4 |
| Output discharge resistor | RDIS1 | 170 |  | 310 | Ω | VEN=0V, VOUT1 rail | 4 |
| Output discharge resistor | RDIS2 | 80 |  | 160 | Ω | VEN =0V, VOUT2 rail | 4 |
| Output accuracy |  |  |  | 1 | % | Compared with CTL voltage, room temp, IOUT2=10mA | 4 |
| Output accuracy |  |  |  | 2 | % | Over temp , IOUT2=10mA | 4 |
| Output offset |  |  |  | 20 | mV | IOUT2=10mA | 4 |
| EN input current |  |  |  | 2 | uA | VEN =2V | 4 |
| Under-voltage lockout threshold rising | UVLO |  | 2.2 |  | V |  | 4 |
| Under-voltage lockout threshold Hysteresis |  |  | 0.15 |  | V |  | 4 |
| Charge pump frequency | Fsw |  | 1 |  | MHz |  | 4 |
| Charge pump equivalent output resistance | RON |  | 0.134 |  | Ω | VIN=3.3V, IOUT1=100mA | 4 |
| Charge pump current limit |  |  | 2 |  | A |  | 4 |
| Load current limit |  |  | 240 |  | mA | VIN=3.3V, VOUT2=-2.5V | 4 |
| Dropout voltage | VDROP |  | 20 |  | mV | VIN=2.7V, IOUT2=60mA | 4 |
| Dropout voltage | VDROP |  | 15 |  | mV | VIN =3.3V, IOUT2=60mA | 4 |
| Load regulation |  |  | 0.005 |  | %/mA | VOUT1=-3.3V, CTL=1V | 4 |
| PSRR | PSRR |  | 60 |  | dB | 100Hz, COUT1=1uF COUT2=1uF, IOUT2=10mA | 4 |
| PSRR | PSRR |  | 50 |  | dB | 50kHz, COUT1=1uF, COUT2=1uF, IOUT2=10mA | 4 |
| PSRR | PSRR |  | 40 |  | dB | 300kHz, COUT1=1uF, COUT2=1uF, IOUT2=10mA | 4 |
| Soft-start slew-rate |  |  | 5 |  | V/ms |  | 4 |
| EN turn-on delay |  |  | 200 |  | us |  | 4 |
| EN input logic low voltage | VIH |  | 0.71 |  | V |  | 4 |
| EN input logic high voltage | VIL |  | 0.91 |  | V |  | 4 |
| Thermal shutdown |  |  | 160 |  | °C |  | 4 |
| Thermal hysteresis |  |  | 25 |  | °C |  | 4 |
| Output ripple OUT1 | VRipple_OUT1 |  | 8 |  | mV | VIN=3.3V, VOUT1=-3.3V, CFLY=COUT1=4.7uF, IOUT1=60mA | 4 |
| Output ripple OUT2 | VRipple_OUT2 |  | 1 |  | mV | VIN=3.3V, VOUT2=2.5V, COUT2=1uF, IOUT2=60mA | 4 |

## CAD (KiCad official)

- Symbol: `SLM5418EJ-7G`
- Footprint: `Package_DFN_QFN:UQFN-10_1.4x1.8mm_P0.4mm`
- 3D model: QFN-10(1.4x1.8) (KiCad packages3D, STEP)
- 3D model files: `slm5418ej-7g-etched.step` / `slm5418ej-7g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `slm5418ej-7g.step` / `slm5418ej-7g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Sillumin datasheet](docs/slm5418ej-7g-datasheet.pdf) (9 pp, sha256 `0de4b24472b3dbec`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/slm5418ej-7g-datasheet.pdf)