# TCR3DM33

**TOSHIBA** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4(1x1)

TCR3DM33 from TOSHIBA, in a DFN-4(1x1). 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 | VOUT | power_out | Regulated output voltage (3.3 V fixed for TCR3DM33), up to 300 mA, with a 1.0 μF ceramic output capacitor recommended. |
| 2 | GND | power_in | Ground pin; the center electrode should be connected to GND or left open. |
| 3 | CONTROL | input | On/off control input: high (1.0 to 5.5 V) turns the output on, low (0 to 0.4 V) or open turns it off, with an internal pull-down to GND. |
| 4 | VIN | power_in | Input supply voltage, 1.75 to 5.5 V operating (6.0 V absolute maximum), with a 1.0 μF ceramic input capacitor recommended. |
| 5 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | DFN-4(1x1) |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage accuracy (1.8 V ≤ VOUT) | VOUT | -1 |  | 1 | % | IOUT = 50 mA (Note 2) | 4 |
| Input voltage | VIN | 1.75 |  | 5.5 | V | IOUT = 300 mA | 4 |
| Line regulation | Reg･line |  | 1 | 15 | mV | VOUT + 0.5 V ≤ VIN ≤ 5.5 V, IOUT = 1 mA | 4 |
| Load regulation | Reg･load |  | 18 | 35 | mV | 1 mA ≤ IOUT ≤ 300 mA | 4 |
| Stand-by current | IB (OFF) |  | 0.1 | 1 | μA | VCT = 0 V | 4 |
| Dropout voltage (3.2 V ≤ VOUT < 3.6 V) | VDO |  | 180 | 230 | mV | IOUT = 300 mA, CIN = 1.0 μF, COUT = 1.0 μF, Tj = 25°C | 4 |
| Control voltage (ON) | VCT (ON) | 1 |  | 5.5 | V |  | 4 |
| Control voltage (OFF) | VCT (OFF) | 0 |  | 0.4 | V |  | 4 |
| Input voltage (absolute maximum) | VIN |  |  | 6 | V |  | 2 |
| Control voltage (absolute maximum) | VCT | -0.3 |  | 6 | V |  | 2 |
| Output voltage (absolute maximum) | VOUT | -0.3 |  |  | V | Upper limit is VIN + 0.3 V | 2 |
| Output current (absolute maximum) | IOUT |  |  | 300 | mA |  | 2 |
| Power dissipation (absolute maximum) | PD |  |  | 420 | mW | Rating at mounting on glass epoxy (FR4) board 40 mm x 40 mm x 1.6 mm (Note 1) | 2 |
| Operating temperature range | Topr | -40 |  | 85 | °C |  | 2 |
| Junction temperature | Tj |  |  | 150 | °C |  | 2 |
| Storage temperature range | Tstg | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `TCR3DM33`
- Footprint: `Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm`
- 3D model: DFN-4(1x1) (KiCad packages3D, STEP)
- 3D model files: `tcr3dm33-etched.step` / `tcr3dm33-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tcr3dm33.step` / `tcr3dm33.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TOSHIBA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600396423657766912) (15 pp, sha256 `cb6966545f36143a`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/tcr3dm33-datasheet.pdf)