component
LM5002MA
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
markdownLM5002MA
Texas Instruments · DC-DC Converters · SOIC-8
LM5002MA 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 | SW | input | Switch pin: the drain terminal of the internal power MOSFET. |
| 2 | VIN | power_in | Input supply pin: nominal operating range is 3.1 V to 75 V. |
| 3 | VCC | power_in | Bias regulator output or input for an external bias supply: VCC tracks VIN up to 6.9 V, is regulated to 6.9 V above that, requires a 0.47-µF or greater ceramic decoupling capacitor, and an external 7 V to 12 V may be applied. |
| 4 | GND | power_in | Ground: internal reference for the regulator control functions and the power MOSFET current sense resistor connection. |
| 5 | RT | input | Oscillator frequency programming and optional synchronization pulse input, with a recommended frequency range of 50 kHz to 1.5 MHz. |
| 6 | FB | input | Feedback input from the regulated output voltage, connected to the inverting input of the internal error amplifier against the 1.26-V reference. |
| 7 | COMP | output | Open-drain output of the internal error amplifier, with the loop compensation network connected between COMP and FB and an internal 5-kΩ pullup resistor. |
| 8 | EN | input | Enable and undervoltage lockout or shutdown input; if left unconnected, a 6-µA pullup current source pulls EN high to enable the regulator. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN to GND | VIN | 76 | V | 4 | |||
| SW to GND (steady state) | SW | -0.3 | 76 | V | steady state | 4 | |
| VCC, EN to GND | VCC, EN | 14 | V | 4 | |||
| COMP, FB, RT to GND | COMP, FB, RT | -0.3 | 7 | V | 4 | ||
| Maximum junction temperature | TJ-MAX | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| VIN input voltage | VIN | 3.1 | 75 | V | 4 | ||
| Operating junction temperature | TJ | -40 | 125 | °C | 4 | ||
| Junction-to-ambient thermal resistance (D SOIC) | RθJA | 105.7 | °C/W | D (SOIC) 8 pins | 4 | ||
| Junction-to-case (top) thermal resistance (D SOIC) | RθJC(top) | 50.8 | °C/W | D (SOIC) 8 pins | 4 | ||
| Junction-to-board thermal resistance (D SOIC) | RθJB | 46.1 | °C/W | D (SOIC) 8 pins | 4 | ||
| Junction-to-top characterization parameter (D SOIC) | ψJT | 8.2 | °C/W | D (SOIC) 8 pins | 4 | ||
| Junction-to-board characterization parameter (D SOIC) | ψJB | 45.6 | °C/W | D (SOIC) 8 pins | 4 | ||
| VCC regulator output | VCC-REG | 6.55 | 6.85 | 7.15 | V | 5 | |
| VCC UVLO threshold | 2.6 | 2.8 | 3 | V | VVCC increasing | 5 | |
| EN shutdown threshold | 0.25 | 0.45 | 0.65 | V | VEN increasing | 5 | |
| EN standby threshold | 1.2 | 1.26 | 1.32 | V | VEN increasing | 5 | |
| Cycle by cycle current limit | ILIM | 0.4 | 0.5 | 0.6 | A | 5 | |
| Frequency1 | FSW1 | 225 | 260 | 295 | KHz | RRT = 48.7 kΩ | 5 |
| Frequency2 | FSW2 | 660 | 780 | 900 | KHz | RRT = 15.8 kΩ | 5 |
| SYNC threshold | VRT-SYNC | 2.2 | 2.6 | 3.2 | V | 5 | |
| Maximum duty cycle | 80 | 85 | 90 | % | 5 | ||
| COMP to PWM comparator offset | VCOMP-OS | 0.9 | 1.3 | 1.55 | V | 5 | |
| Feedback reference voltage | VFB-REF | 1.241 | 1.26 | 1.279 | V | Internal reference and VFB = VCOMP | 5 |
| COMP short circuit current | 0.9 | 1.2 | 1.5 | mA | VFB = 0 V and VCOMP = 0 V | 5 | |
| COMP open circuit voltage | 4.8 | 5.5 | 6.2 | V | VFB = 0 V | 5 |
CAD (KiCad official)
- Symbol:
LM5002MA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm5002ma-etched.step/lm5002ma-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5002ma.step/lm5002ma.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
e2fcc2f81a03f2a1, retrieved 2026-10-30, tier: manufacturer) - 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-5-5(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).