component
LM5017MRX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-8-EP. Datasheet-verified pinout, 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
markdownLM5017MRX
Texas Instruments · DC-DC Converters · SOIC-8-EP
LM5017MRX from Texas Instruments, in a SOIC-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RTN | power_in | Ground connection of the integrated circuit. |
| 2 | VIN | power_in | Power supply input with operating voltage range from 7.5 V to 100 V. |
| 3 | UVLO | input | Undervoltage detection input; external resistor divider from VIN programs threshold with internal 1.225 V reference; 20-μA hysteresis current source enabled above 1.225 V; pulling below 0.66 V activates shutdown mode. |
| 4 | RON | input | On-time programming input; external resistor to VIN sets buck switch on-time inversely proportional to VIN; minimum 100 ns on-time required at maximum input voltage (100 V). |
| 5 | FB | input | Feedback input to regulation comparator inverting input; internal regulation reference voltage is 1.225 V. |
| 6 | VCC | power_out | Regulated 7.6 V output from internal high-voltage series pass regulator providing bias supply for gate drivers and internal circuitry; 1-μF decoupling capacitor recommended. |
| 7 | BST | output | Bootstrap capacitor connection for high-side gate driver; 0.01-μF ceramic capacitor recommended between BST and SW; charged by VCC regulator through internal diode when SW is low. |
| 8 | SW | output | Switching node output connecting high-side and low-side MOSFETs; connect to output inductor and bootstrap capacitor; switches between VIN and GND. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
LM5017MRX - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
lm5017mrx-etched.step/lm5017mrx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5017mrx.step/lm5017mrx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (42 pp, sha256
d36b000ef35121b6, retrieved 2026-09-22, 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-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).