# LM53600MQDSXRQ1

**Texas Instruments** · DC-DC Converters · WSON-10-EP(3x3)

LM53600MQDSXRQ1 from Texas Instruments, in a WSON-10-EP(3x3). 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 | power_out | Regulator switch node that connects to the output inductor; SW to GND is rated -0.3 V to VIN+0.3 V, with -2 V and VIN+2 V allowed for up to 200 ns. |
| 2 | BOOT | input | High-side gate driver upper supply rail; connect a 100-nF capacitor from SW to BOOT, which an internal diode charges while SW is low (BOOT to SW maximum 3.6 V). |
| 3 | VCC | power_out | Internal 3-V regulator output that supplies the internal control circuits; for the adjustable version, connect a high-quality 1.0-µF capacitor from this pin to GND (VCC maximum 3.6 V). |
| 4 | FB | input | Adjustable-version feedback input for output voltage only; connect to the output through a voltage divider that sets the output voltage set point (FB to GND range -0.3 V to 5.5 V). |
| 5 | BIAS | power_in | Power source for the VCC regulator in the adjustable version; connect to the output node with a 10-nF bypass capacitor placed immediately adjacent to this pin (BIAS to GND maximum 16 V). |
| 6 | RESET | output | Open-drain reset output (high = regulator OK, low = regulator fault) that needs a current-limiting pull-up resistor to a suitable supply, goes low when EN is low, and is limited to 8 V and 8 mA sink current. |
| 7 | EN | input | Enable input where high turns the regulator on and low turns it off; it can be connected to VIN but must not float (EN to GND maximum 42 V). |
| 8 | VIN | power_in | Input supply to the regulator; connect input bypass capacitors directly between this pin and GND (3.8 V to 36 V input range after startup, 42 V absolute maximum). |
| 9 | SYNC/MODE | input | Multifunction mode input tolerant of voltages up to VIN: a valid external clock forces PWM synchronized to its rising edge, tied high forces PWM at the internal frequency, tied low selects AUTO mode with diode emulation at light load, and it must not float. |
| 10 | GND | power_in | Ground pin that should be bypassed to VIN immediately adjacent to this pin. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-10-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 11 |

## CAD (KiCad official)

- Symbol: `LM53600MQDSXRQ1`
- Footprint: `Package_SON:VSON-10-1EP_3x3mm_P0.5mm_EP1.2x2mm`
- 3D model: WSON-10-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `lm53600mqdsxrq1-etched.step` / `lm53600mqdsxrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm53600mqdsxrq1.step` / `lm53600mqdsxrq1.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/lm53601-q1) (51 pp, sha256 `d174c97c59a34282`, 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/lm53600mqdsxrq1-datasheet.pdf)