# LM828M5X

**Texas Instruments** · Charge Pumps · SOT-23-5

LM828M5X from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT | power_out | Negative voltage output. Delivers the inverted supply, approximately -(V+), up to 25 mA. Connect the output charge-storage/reservoir capacitor C2 (typ. 10 µF, low ESR, 0.3 Ω max) from this pin to GND. |
| 2 | V+ | power_in | Power supply positive input. Operating range 1.8 V to 5.5 V (absolute max 5.8 V to GND). Bypass locally to GND. |
| 3 | CAP- | passive | Charge-pump flying-capacitor negative terminal. Connect to the negative terminal of the pump capacitor C1 (typ. 10 µF, low ESR). Switched between GND and OUT internally. |
| 4 | GND | power_in | Power supply ground input. Reference for both V+ and OUT. |
| 5 | CAP+ | passive | Charge-pump flying-capacitor positive terminal. Connect to the positive terminal of the pump capacitor C1 (typ. 10 µF, low ESR). Switched between V+ and GND internally at ~12 kHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## Ordering variants

Same part, different packaging or reel option.

- `LM828M5X`

## CAD (KiCad official)

- Symbol: `LM828M5X`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lm828m5x-etched.step` / `lm828m5x-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm828m5x.step` / `lm828m5x.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/lm828) (17 pp, sha256 `e2f4d81a8e4e5b4f`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/lm828m5x-datasheet.pdf)