component
LM2660MX
Public Unreviewedby Ray
Texas Instruments DC-DC Converters, SOIC-8. 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
markdownLM2660MX
Texas Instruments · DC-DC Converters · SOIC-8
LM2660MX from Texas Instruments, in a SOIC-8. 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 | FC | input | Frequency control input for the internal oscillator. FC = open → fOSC ≈ 10 kHz; FC = V+ → fOSC ≈ 80 kHz. FC has no effect when OSC is driven externally. |
| 2 | CAP+ | passive | Positive terminal of the external charge-pump (flying) capacitor C1. |
| 3 | GND | power_in | Power-supply ground input in inverter mode. In doubler mode this pin is used as the positive supply voltage input. |
| 4 | CAP- | passive | Negative terminal of the external charge-pump (flying) capacitor C1. |
| 5 | OUT | power_out | Negative voltage output in inverter mode (-VIN). In doubler mode this pin is tied to ground and used as the supply ground input. |
| 6 | LV | input | Low-voltage operation input. Tie LV to GND when V+ < 3.5 V; above 3.5 V LV can be connected to GND or left open. When driving OSC with an external clock, LV must be connected to GND. In doubler mode LV must be tied to OUT. |
| 7 | OSC | bidirectional | Oscillator control input. OSC is connected to an internal ~15-pF capacitor; an external capacitor can be added to slow the oscillator, or an external clock up to 150 kHz can drive the pin. OSC cannot be driven externally in doubler mode. |
| 8 | V+ | power_in | Power-supply positive voltage input (1.5 V to 5.5 V) in inverter mode. In doubler mode this pin becomes the positive voltage output (~2×VIN). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
LM2660MXLM2660MXMLM2660MXMMLM2660MXMMX
CAD (KiCad official)
- Symbol:
LM2660MX - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
57a57bac6fba6b6b, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).