# GM12041ARDZ-3.3-R7

**GONGMOSEMI** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8

GM12041ARDZ-3.3-R7 from GONGMOSEMI, in a SOIC-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 | OUT | power_out | Regulated output; place a 10µF or larger ceramic capacitor between OUT and GND as close to the pin as possible, with ESR no more than 3Ω, to keep the regulator stable and prevent oscillation. |
| 2 | SENSE/ADJ | input | Feedback pin to the error amplifier; it is the SENSE pin on fixed-output versions, and on adjustable versions the ADJ pin sits at 1.21V relative to GND with an external output range of 1.21V to 20V. |
| 3 | GND | power_in | Ground reference pin. |
| 4 | NC | unconnected | Not connected. |
| 5 | SHDN | input | Shutdown pin; pull high to enable the device and pull low to disable it, and if the enable function is not needed it must be connected to IN. |
| 6 | GND | power_in | Ground reference pin. |
| 7 | GND | power_in | Ground reference pin. |
| 8 | IN | power_in | Input pin with an input supply range of 1.9V to 20V; a 10µF or larger ceramic capacitor (7µF or larger acceptable) from IN to GND is required to lower input impedance, placed as close to the pin as possible. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GONGMOSEMI |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Fixed output voltage accuracy (3.3 V SENSE variant) | VSENSE | -2 |  | 2 | % | max(VOUT + 0.5V, 1.9 V) < VIN < 20V, 1mA < ILOAD < 1.5A | 9 |
| Dropout voltage at 100 mA | VDO |  | 70 | 146 | mV | VIN = 3.3 V, IOUT = 100 mA, VFB = 0.5 V, 3% | 9 |
| Dropout voltage at 1.5 A | VDO |  | 160 | 270 | mV | VIN = 3.3 V, IOUT = 1.5 A, VFB = 0.5 V, 3% | 9 |
| Input voltage line regulation | ΔVOUT_LINE |  | 2 | 8 | mV | VIN = max(VOUT + 0.5V, 1.9 V) to 20 V, ILOAD = 10mA | 9 |
| Load regulation | ΔVOUT_LOAD |  | 3 | 15 | mV | 1 mA ≤ IOUT ≤ 1.5 A | 9 |
| GND pin current at no load | IGND |  | 0.9 | 1.7 | mA | ILOAD = 0mA | 9 |
| GND pin current at 100 mA load | IGND |  | 1.4 | 2.2 | mA | ILOAD = 100mA | 9 |
| GND pin current at 1.5 A load | IGND |  | 2.7 | 3.9 | mA | ILOAD = 1.5A | 9 |
| Shutdown current | ISHUTDOWN |  | 0.9 | 10 | μA | VIN = 6V, SHDN = 0V, TJ = 25°C | 9 |
| UVLO rising threshold | VUVLO_RISING |  | 1.75 | 1.89 | V | VIN 上升 | 9 |
| UVLO falling threshold | VUVLO_FALLING |  | 1.55 | 1.68 | V | VIN 下降 | 9 |
| SHDN pin low-level input voltage | VSHDN_IL |  | 0.49 | 0.75 | V |  | 9 |
| SHDN pin high-level input voltage | VSHDN_IH |  | 0.79 | 1.1 | V |  | 9 |
| SHDN pin current | ISHDN |  | 50 | 750 | nA | VIN = 20 V, TJ = 25°C | 9 |
| Output current limit | ILIM |  | 2.2 |  | A | VOUT 外加 0.9 × VOUT(nom), VIN = VOUT(nom) + 0.5 V | 9 |
| Power supply ripple rejection at 100 Hz | PSRR |  | 80 |  | dB | f = 100 Hz, VOUT - VOUT = 1 V, ILOAD = 1.5 A | 9 |
| Power supply ripple rejection at 10 kHz | PSRR |  | 75 |  | dB | f = 10 kHz, VOUT - VOUT = 1 V, ILOAD = 1.5 A | 9 |
| Output voltage noise | VN |  | 9.8 |  | μVRMS | 带宽 = 10 Hz to 100 kHz, IOUT = 1.5 A | 9 |
| Output voltage noise at 3.3 V output | VN |  | 27 |  | μVRMS | VOUT = 3.3 V, 10 Hz to 100 kHz (text) | 13 |
| Thermal shutdown threshold | TSD |  | 155 |  | °C | 关机阈值，温度上升 | 9 |
| Thermal shutdown hysteresis | TSD_HYS |  | 15 |  | °C | 开机阈值，温度下降 | 9 |
| IN, SHDN to GND voltage |  | -0.3 |  | 22 | V |  | 8 |
| OUT to GND voltage |  | -0.3 |  | 22 | V |  | 8 |
| SENSE/ADJ to GND voltage |  | -0.3 |  | 6 | V |  | 8 |
| Storage temperature range |  | -65 |  | 150 | °C |  | 8 |
| Operating temperature range |  | -40 |  | 125 | °C |  | 8 |
| Input voltage operating range | VIN | 1.9 |  | 20 | V |  | 14 |
| Continuous operating junction temperature | TJ |  |  | 125 | °C | continuous operation | 14 |
| Minimum output capacitance | COUT | 10 |  |  | μF | ceramic, placed as close to OUT pin as possible | 14 |
| Output capacitor ESR | ESR |  |  | 3 | Ω | to prevent oscillation | 14 |
| Junction-to-ambient thermal resistance, 8-pin SOIC | θJA |  | 67 |  | °C/W | worst case, surface-mount package (Table 7) | 8 |
| Junction-to-ambient thermal resistance, SOP-8 on JEDEC 51-7 four-layer board | θJA |  | 46.4 |  | °C/W | JEDEC 51-7 high-K four-layer test board, TA = 25°C | 14 |

## CAD (KiCad official)

- Symbol: `GM12041ARDZ-3.3-R7`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `gm12041ardz-3-3-r7-etched.step` / `gm12041ardz-3-3-r7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gm12041ardz-3-3-r7.step` / `gm12041ardz-3-3-r7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GONGMOSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8773173050894635008) (20 pp, sha256 `b0731d7ae1fd05a4`, retrieved 2026-10-19, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/gm12041ardz-3-3-r7-datasheet.pdf)