# TPS72118MDBVREP

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

TPS72118MDBVREP from Texas Instruments, in a SOT-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 | IN | power_in | Input supply voltage; the device operates from 1.8 V to 5.5 V, with minimum IN operating voltage of 1.8 V or VOUT + VDO, whichever is greater. |
| 2 | GND | power_in | Ground pin, which carries the quiescent (ground) current of the regulator. |
| 3 | EN | input | Enable input; a logic low (below 0.4 V) shuts off the output and reduces supply current below 3 µA, and a logic high of 1.4 V or more enables the regulator. |
| 4 | NC/FB | unconnected | Not connected in the fixed-voltage TPS72118 and must be left floating and not connected to GND; it is the feedback input (FB) only on the adjustable TPS72101 option. |
| 5 | OUT | power_out | Regulated output voltage of 1.8 V; the device limits output current internally to approximately 350 mA, with the voltage on OUT rated from -0.3 V to VIN + 0.3 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-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 | VIN | 1.8 |  | 5.5 | V |  | 3 |
| Continuous output current | IOUT | 0 |  | 150 | mA |  | 3 |
| Operating junction temperature | TJ | -55 |  | 125 | °C |  | 3 |
| Output voltage (1.8 V fixed version) | VOUT | 1.728 |  | 1.872 | V | 2.8 V ≤ VIN ≤ 5.5 V, 1 mA < IOUT < 150 mA, TJ = full temp | 3 |
| Quiescent current (GND current) | IQ |  |  | 125 | µA | IOUT = 1 mA, TJ = full temp | 3 |
| Quiescent current (GND current) | IQ |  |  | 850 | µA | IOUT = 150 mA, TJ = full temp | 3 |
| Standby current |  |  |  | 3 | µA | EN < 0.5 V, TJ = full temp | 3 |
| Current limit |  | 120 |  | 525 | mA | VO = 1 V, pulse duration = 10 ms | 3 |
| Output voltage line regulation (ΔVOUT/VOUT) |  |  | 0.03 | 0.2 | %/V | VO + 1 V < VIN ≤ 5.5 V, TJ = 25°C | 3 |
| Output voltage line regulation (ΔVOUT/VOUT) |  |  |  | 0.35 | %/V | VO + 1 V < VIN ≤ 5.5 V, IOUT = 150 mA, TJ = full temp | 3 |
| EN high level input | VIH | 1.4 |  |  | V |  | 3 |
| EN low level input | VIL |  |  | 0.4 | V |  | 3 |
| EN input current | IEN | 0 |  | 1 | µA | EN = 0 V | 3 |
| Input voltage (absolute maximum, voltage range at IN) | VIN | -0.3 |  | 7 | V | Voltage range at IN, with respect to network ground | 2 |
| Voltage range at EN | VEN | -0.3 |  | 7 | V | Voltage range at EN, with respect to network ground | 2 |
| Voltage on OUT, FB, NC | VOUT, FB, NC | -0.3 |  |  | V | Maximum printed as VI + 0.3 V (not numeric) | 2 |
| Operating junction temperature range (absolute maximum) | TJ | -55 |  | 150 | °C |  | 2 |
| Storage temperature range | Tstg | -65 |  | 150 | °C |  | 2 |
| Thermal resistance junction-to-case | RθJC |  | 65.8 |  | °C/W | DBV package | 2 |
| Thermal resistance junction-to-ambient | RθJA |  | 259 |  | °C/W | JEDEC Low-K (1s) board | 2 |
| Thermal resistance junction-to-ambient | RθJA |  | 180 |  | °C/W | JEDEC High-K (2s2p) board | 2 |

## CAD (KiCad official)

- Symbol: `TPS72118MDBVREP`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tps72118mdbvrep-etched.step` / `tps72118mdbvrep-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps72118mdbvrep.step` / `tps72118mdbvrep.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps72118-ep) (15 pp, sha256 `860681fd9f717aeb`, retrieved 2026-10-12, 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/tps72118mdbvrep-datasheet.pdf)