component
LM2738YSD
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WSON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownLM2738YSD
Texas Instruments · DC-DC Converters · WSON-8-EP(3x3)
LM2738YSD from Texas Instruments, in a WSON-8-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 | BOOST | input | Boost voltage that drives the internal NMOS control switch, with a bootstrap capacitor connected between BOOST and SW; Boost-to-SW voltage is recommended at 2.5 V to 5.5 V. |
| 2 | VIN | power_in | Supply voltage for the output power stage; connect a bypass capacitor to this pin and tie pins 2 and 3 together at the package; recommended VIN/VCC range is 3 V to 20 V. |
| 3 | VCC | power_in | Input supply voltage of the device; connect a bypass capacitor to this pin and tie pins 2 and 3 together at the package. |
| 4 | EN | input | Enable control input where logic high enables operation; do not allow this pin to float or be greater than VIN + 0.3 V. |
| 5 | GND | power_in | Signal and power ground; place the bottom resistor of the feedback network as close as possible to this pin. |
| 6 | FB | input | Feedback pin that connects to the external resistor divider to set the output voltage, with an absolute maximum FB voltage of -0.5 V to 3 V. |
| 7 | GND | power_in | Signal and power ground; place the bottom resistor of the feedback network as close as possible to this pin. |
| 8 | SW | output | Output switch that connects to the inductor, catch diode, and bootstrap capacitor; recommended SW voltage range is -0.5 V to 20 V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-8-EP(3x3) |
| Category | Power Supply Chip |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
LM2738YSD - Footprint:
Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm - 3D model: WSON-8-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
lm2738ysd-etched.step/lm2738ysd-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2738ysd.step/lm2738ysd.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (44 pp, sha256
2b1805b4c3e0d675, retrieved 2026-10-08, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).