component
LMR33630ADDA
Public Made by Adomby adom
Texas Instruments DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLMR33630ADDA
Texas Instruments · DC-DC Converters · ESOP-8
LMR33630ADDA from Texas Instruments, in a ESOP-8. 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 | PGND | power_in | Power ground terminal; connect to system ground and AGND with bypass capacitor using short wide traces. |
| 2 | VIN | power_in | Input voltage supply to regulator (3.8V to 36V); connect high-quality bypass capacitor or capacitors directly to this pin and PGND. |
| 3 | EN | input | Enable input to regulator with rising threshold of 1.231V typical; high = ON, low = OFF; can connect directly to VIN but must not float. |
| 4 | PG | output | Open-drain power-good flag output; connect to suitable voltage supply through current-limiting resistor; pulls low during current limit, thermal shutdown, or startup. |
| 5 | FB | input | Feedback input for regulator with 1V reference (0.985V to 1.015V nominal); connect to feedback voltage divider tap; must not float or be grounded. |
| 6 | VCC | power_out | Internal 5V LDO output (4.75V to 5.25V) supplying control circuits; connect 1-µF high-quality ceramic capacitor from this pin to GND; do not connect external loads. |
| 7 | BOOT | power_in | Bootstrap supply voltage for internal high-side gate driver (-0.3V to 5.5V relative to SW); connect 100-nF high-quality ceramic capacitor from this pin to SW. |
| 8 | SW | output | Regulator switch node connecting to power inductor; switches between VIN and ground through internal power MOSFETs at 400kHz switching frequency. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
LMR33630ADDA - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
lmr33630adda-etched.step/lmr33630adda-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmr33630adda.step/lmr33630adda.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (57 pp, sha256
71bca20c1f8dd624, retrieved 2026-09-26, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).