# LM25011AMY

**Texas Instruments** · DC-DC Converters · HVSSOP-10

LM25011AMY from Texas Instruments, in a HVSSOP-10. 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 | Input supply voltage with an operating range of 6 V to 42 V and a 45 V transient capability; a low-ESR capacitor must be placed as close as possible to the VIN and SGND pins. |
| 2 | RT | input | On-time control: an external resistor from VIN to this pin sets the buck switch on-time and the switching frequency. |
| 3 | PGD | output | Power-good logic output that indicates when the FB voltage has risen above 95% of the internal reference, with hysteresis; an external pull-up resistor to a voltage less than 7 V is required. |
| 4 | SS | input | Soft-start pin: an internal current source charges an external capacitor to provide the soft-start function. |
| 5 | SGND | power_in | Signal ground for all internal circuitry other than the current limit sense circuit. |
| 6 | FB | input | Feedback input connected internally to the regulation comparator, with a regulation level of 2.51 V. |
| 7 | CSG | power_in | Current sense ground: connect to ground and to the current sense resistor for the current limit sensing circuit. |
| 8 | CS | input | Current sense input: connect to the current sense resistor and the anode of the free-wheeling diode. |
| 9 | SW | output | Switching node connected internally to the buck switch source; connect to the external inductor, the cathode of the free-wheeling diode, and the bootstrap capacitor. |
| 10 | BST | input | Bootstrap capacitor connection for the buck switch gate driver; connect a 0.1 µF capacitor from SW to this pin, charged during the buck switch off-time via an internal diode. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HVSSOP-10 |
| Category | Power Management (PMIC) |
| Pins | 11 |

## CAD (KiCad official)

- Symbol: `LM25011AMY`
- Footprint: `Package_SO:HVSSOP-10-1EP_3x3mm_P0.5mm_EP1.83x1.89mm`
- 3D model: HVSSOP-10, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.0 mm nominal HVSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `lm25011amy-etched.step` / `lm25011amy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm25011amy.step` / `lm25011amy.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/lm25011-q1) (32 pp, sha256 `cb448b6c7c95f313`, retrieved 2026-10-08, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/lm25011amy-datasheet.pdf)