component
LM2578AN
Public Made by Adomby adom
Texas Instruments DC-DC Converters, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownLM2578AN
Texas Instruments · DC-DC Converters · PDIP-8
LM2578AN from Texas Instruments, in a PDIP-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 | -INPUT | input | Inverting comparator input with an internal 1.0V reference; the feedback input used for buck, boost and inverting configurations. |
| 2 | +INPUT | input | Non-inverting comparator input with an internal 1.0V reference; any external voltage applied above the reference must be limited to less than 5 mA. |
| 3 | OSC | passive | Oscillator pin where a single external timing capacitor sets the switching frequency from <1 Hz to 100 kHz, fOSC = 8x10^-5/C1. |
| 4 | GND | power_in | Ground; the emitter must not be pulled more than 1V below this pin (0.6V for TJ >= 100°C). |
| 5 | EMITTER | output | Emitter of the 750 mA output transistor, which must not be driven more than 1V below ground and is rated -1V to +50V. |
| 6 | COLLECTOR | output | Collector of the 750 mA output transistor, rated -0.3V to +50V with saturation voltage under 0.9V. |
| 7 | CURRENT LIMIT | input | Cycle-by-cycle current limit terminal referenced to either VIN or ground, activating when pulled 110 mV away from either. |
| 8 | VIN | power_in | Supply input operating from 2V to 40V, with total supply voltage rated at 50V maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2578AN - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files:
lm2578an-etched.step/lm2578an-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2578an.step/lm2578an.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
6b628780505f380b, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).