component
LM5009MM
Public Made by Adomby adom
Texas Instruments DC-DC Converters, MSOP-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
markdownLM5009MM
Texas Instruments · DC-DC Converters · MSOP-8
LM5009MM from Texas Instruments, in a MSOP-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 | SW | output | Power switching output connected to inductor, recirculating diode, and bootstrap capacitor. |
| 2 | BST | input | Boost pin requiring external 0.022-µF ceramic capacitor between BST and SW pins, charged from VCC via internal diode. |
| 3 | RCL | input | Current limit off-time set pin with resistor to RTN; off-time preset to 35 µs when FB = 0 V. |
| 4 | RTN | power_in | Ground pin for the entire circuit. |
| 5 | FB | input | Feedback input from regulated output to inverting input of regulation comparator with 2.5 V threshold. |
| 6 | RON/SD | input | On-time set pin with resistor to VIN determining switch on-time (minimum 250 ns at maximum VIN), usable for remote shutdown. |
| 7 | VCC | power_out | Internal high-voltage startup regulator output regulated at 7.0 V (do not exceed 14 V) providing gate drive power; internal diode between this pin and BST; requires 0.1-µF decoupling capacitor. |
| 8 | VIN | power_in | Input voltage with recommended operating range 9.5 V to 95 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | MSOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM5009MM - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm5009mm-etched.step/lm5009mm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5009mm.step/lm5009mm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
a24fc688849523e5, retrieved 2026-10-03, 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, primaryclaude-haiku-4-5-20251001(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).