component
LM2597MX-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
markdownLM2597MX-5.0
Texas Instruments · DC-DC Converters · SOIC-8
LM2597MX-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 flag, low when output voltage drops >5% from nominal, until VOUT reaches 95% plus delay time set by Delay pin capacitor. |
| 2 | Delay | output | Connected to external timing capacitor to set power-up delay between output reaching 95% nominal and error flag going high. |
| 3 | Bias_Supply | input | Bias supply input for regulator internal circuitry, allows powered from regulated output or external supply instead of VIN to improve efficiency. |
| 4 | Feedback | input | Feedback input that senses the regulated output voltage to complete the feedback loop for voltage regulation. |
| 5 | Shutdown/Soft-Start | input | Dual-function input: logic level control shuts down regulator reducing standby current to approximately 80 μA, or add capacitor for soft-start to minimize start-up current. |
| 6 | Ground | power_in | Circuit ground, common reference for all supplies and signals. |
| 7 | +VIN | power_in | Positive input supply (4.5 to 40 V for LM2597, 4.5 to 60 V for LM2597HV), requires input bypass capacitor to minimize voltage transients. |
| 8 | Output | output | Internal power switch output with voltage switching between (+VIN − VSAT) and approximately −0.5 V at duty cycle of VOUT/VIN, minimize PCB copper area to reduce coupling. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2597MX-5.0 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm2597mx-5-0-etched.step/lm2597mx-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2597mx-5-0.step/lm2597mx-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 2026-10-01, 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).