component
LM2597HVMX-5.0
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-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
markdownLM2597HVMX-5.0
Texas Instruments · DC-DC Converters · SOIC-8
LM2597HVMX-5.0 from Texas Instruments, in a SOIC-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 | Error Flag | tri_state | Open-collector output that pulls low when regulated output voltage drops more than 5% below nominal; remains low on start-up until VOUT reaches 95% nominal plus delay time determined by Delay pin capacitor. |
| 2 | Delay | output | Output pin for delay capacitor; provides time delay between regulated output voltage reaching 95% nominal and error flag output going high at power-up. |
| 3 | Bias Supply | input | Input pin allowing regulator internal circuitry to be powered from regulated output voltage or external supply instead of input voltage for improved efficiency at low output current or high input voltage. |
| 4 | Feedback | input | Input pin sensing regulated output voltage to complete the feedback loop. |
| 5 | Shutdown/Soft-Start | input | Input pin providing dual function: shutdown via logic level signals dropping standby current to approximately 80 μA, or soft-start feature via capacitor connection minimizing start-up current and providing controlled output voltage ramp-up. |
| 6 | Ground | power_in | Circuit ground. |
| 7 | +VIN | power_in | Positive input supply, 4.5 V to 60 V for LM2597HV; requires suitable input bypass capacitor to minimize voltage transients and supply switching currents required by regulator. |
| 8 | Output | output | Internal switch output switching between (+VIN − VSAT) and approximately −0.5 V with duty cycle of VOUT/VIN; PCB copper area connected to pin must be kept minimal to reduce coupling to sensitive circuitry. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2597HVMX-5.0 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm2597hvmx-5-0-etched.step/lm2597hvmx-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2597hvmx-5-0.step/lm2597hvmx-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (52 pp, sha256
4c810080b3229f59, retrieved 2026-10-06, tier: lcsc) - 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).