# TL7660ID

**Texas Instruments** · DC-DC Converters · SOIC-8

TL7660ID 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 | NC | unconnected | No internal connection; leave this pin unconnected. |
| 2 | CAP+ | passive | Positive terminal of the pump capacitor C1; the datasheet requires polarized C1's positive terminal to be connected to this pin. |
| 3 | GND | power_in | Ground reference; the positive terminal of the reservoir capacitor C2 must be connected to GND when polarized capacitors are used. |
| 4 | CAP− | passive | Negative terminal of the pump capacitor C1 that is switched by the internal charge-pump network to generate the negative output. |
| 5 | VOUT | power_out | Negative converter output (-VCC); it must not go more positive than GND (pin 3) or the device latches up, and a short to VCC above 5.5 V is allowed only transiently. |
| 6 | LV | input | Low-voltage regulator bypass: tie to GND for VIN below 3.5 V (do not tie to GND above 3.5 V) and leave floating above 3.5 V to prevent latch-up. |
| 7 | OSC | input | Oscillator terminal: nominal 10 kHz at VCC = 5 V, can be slowed by adding an external capacitor to it or overdriven by an external clock through a 1-kΩ series resistor. |
| 8 | VCC | power_in | Supply input with a recommended operating range of 1.5 V to 10 V (absolute maximum 10.5 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TL7660ID`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tl7660id-etched.step` / `tl7660id-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl7660id.step` / `tl7660id.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tl7660.pdf) (26 pp, sha256 `f894cae2eb99e40e`, retrieved 2026-10-11, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/tl7660id-datasheet.pdf)