# LM2653MTC-ADJ

**Texas Instruments** · DC-DC Converters · TSSOP-16

LM2653MTC-ADJ from Texas Instruments, in a TSSOP-16. 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 | SW | output | Switched-node connection, connected to the source of the internal high-side MOSFET. |
| 2 | SW | output | Switched-node connection, connected to the source of the internal high-side MOSFET. |
| 3 | VIN | power_in | Main power supply input, connected to the drain of the high-side MOSFET; operating supply range is 4V to 14V with absolute maximum input voltage of 15V. |
| 4 | VIN | power_in | Main power supply input, connected to the drain of the high-side MOSFET; operating supply range is 4V to 14V with absolute maximum input voltage of 15V. |
| 5 | VIN | power_in | Main power supply input, connected to the drain of the high-side MOSFET; operating supply range is 4V to 14V with absolute maximum input voltage of 15V. |
| 6 | VCB | passive | Bootstrap capacitor connection for high-side gate drive; a 0.1 µF ceramic capacitor is recommended, with a typical voltage of 6.7V across it. |
| 7 | AVIN | power_in | Input voltage for the control and driver circuits; operating supply range is 4V to 14V. |
| 8 | SD(SS) | input | Shutdown and soft-start control; pulling this pin below 0.3V shuts off the regulator, and it must not be driven by an external source. |
| 9 | FB | input | Output voltage feedback input connected to the output voltage; feedback pin voltage is limited to −0.4V to 5V. |
| 10 | COMP | passive | Compensation network connection, connected to the output of the voltage error amplifier. |
| 11 | PGOOD | output | Output voltage monitor that goes low if the output exceeds 110% or falls below 80% of its nominal value; pin voltage absolute maximum is 15V. |
| 12 | LDELAY | passive | Capacitor to ground sets the delay from the output reaching 80% of nominal to enabling undervoltage latch protection and taking PGOOD low; tying this pin to ground disables the undervoltage protection. |
| 13 | AGND | power_in | Low-noise analog ground. |
| 14 | PGND | power_in | Power ground. |
| 15 | PGND | power_in | Power ground. |
| 16 | PGND | power_in | Power ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `LM2653MTC-ADJ`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `lm2653mtc-adj-etched.step` / `lm2653mtc-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2653mtc-adj.step` / `lm2653mtc-adj.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/lm2653) (23 pp, sha256 `050b2dbbc52c0b78`, retrieved 2026-10-08, 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/lm2653mtc-adj-datasheet.pdf)