# MP20056GJ-25-Z

**Monolithic Power Systems** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TSOT-23-5

MP20056GJ-25-Z from Monolithic Power Systems, in a TSOT-23-5. 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 | Regulator input with a supply voltage range of 2.5V to 5.5V; bypass with a 2.2μF capacitor and keep it externally connected for proper operation. |
| 2 | GND | power_in | Ground reference pin of the regulator; the exposed-pad GND plane connection recommendation applies to the QFN-8 package, not to TSOT23-5. |
| 3 | EN | input | Regulator enable control input: drive above 1.5V to turn the MP20056 on and below 0.4V to turn it off, and do not float the pin. |
| 4 | FB | input | Feedback input connected to the center point of the external resistor divider, with a feedback threshold voltage of 0.8V. |
| 5 | VOUT | power_out | Regulator output; bypass with a standard 4.7μF ceramic capacitor to GND. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Monolithic Power Systems |
| Package | TSOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## 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 |  | 2.5 |  | 5.5 | V |  | 5 |
| FB Voltage |  | 0.784 | 0.8 | 0.816 | V | VOUT=0.8V, IOUT=1mA, Tj=25°C | 5 |
| Output Voltage Accuracy |  | -2 |  | 2 | % | IOUT=1mA, TJ=25°C | 5 |
| Short-Circuit Current Limit |  | 350 | 550 | 850 | mA | VOUT=0, VIN≥2.5V | 5 |
| In-Regulation Current Limit |  | 300 | 550 | 800 | mA | VOUT within 4% of normal output voltage; VIN=5.5V | 5 |
| Ground Current |  |  | 150 | 250 | μA | IOUT=0.1mA | 5 |
| Ground Current |  |  | 220 | 330 | μA | IOUT=250mA | 5 |
| Line Regulation |  | -0.15 |  | 0.15 | %/V | VIN from VOUT+0.5V or 2.5V to 5.5V, IOUT=100mA | 5 |
| Load Regulation |  | -0.4 |  | 0.4 | % | IOUT from 100mA to 250mA, VOUT=2.5V | 5 |
| EN Pin Threshold, EN Logic High |  | 1.5 |  |  | V |  | 5 |
| EN Pin Threshold, EN Logic Low |  |  |  | 0.4 | V |  | 5 |
| Startup Time |  |  | 100 | 450 | μs | COUT=4.7μF, VOUT=10% to 90%VOUT(NOM), VOUT=3.3V, 2.5V | 5 |
| Shutdown Supply Current |  |  | 0.1 | 0.3 | μA | VIN=+5.5V, TJ=25°C | 5 |
| EN Pin Current, Enabled |  |  | 0.1 | 0.3 | μA | VIN=VEN=+5.5V | 5 |
| VIN, EN, FB to GND |  | -0.3 |  | 6 | V |  | 4 |
| OUT to GND |  | -0.5 |  |  | V | upper limit printed as (VIN + 0.5V) | 4 |
| Continuous Power Dissipation, TSOT23-5 | PD |  |  | 0.57 | W | TA=25°C | 4 |
| Junction Temperature |  |  |  | 150 | °C |  | 4 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 4 |
| Lead Temperature (Soldering) |  |  |  | 260 | °C | 10 sec | 4 |
| ESD HBM |  |  |  | 2 | kV | Human Body Model | 4 |
| ESD MM |  |  |  | 200 | V | Machine Model | 4 |
| Supply Input Voltage |  | 2.5 |  | 5.5 | V |  | 4 |
| Enable Input Voltage |  | 0 |  | 5.5 | V |  | 4 |
| Operating Junction Temperature | TJ | -40 |  | 125 | °C |  | 4 |
| Thermal Resistance Junction-to-Ambient, TSOT23-5 | θJA |  | 220 |  | °C/W | Measured on JESD51-7, 4-layer PCB | 4 |
| Thermal Resistance Junction-to-Case, TSOT23-5 | θJC |  | 110 |  | °C/W | Measured on JESD51-7, 4-layer PCB | 4 |

## CAD (KiCad official)

- Symbol: `MP20056GJ-25-Z`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-5`
- 3D model: TSOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `mp20056gj-25-z-etched.step` / `mp20056gj-25-z-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mp20056gj-25-z.step` / `mp20056gj-25-z.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Monolithic Power Systems datasheet](docs/mp20056gj-25-z-datasheet.pdf) (16 pp, sha256 `a970892e95cbc2c2`, retrieved 2026-10-31, tier: lcsc)
- **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/mp20056gj-25-z-datasheet.pdf)