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Contents

README

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TL7660IDR

Texas Instruments · DC-DC Converters · SOIC-8

TL7660IDR 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.
2 CAP+ output Positive terminal of external charge pump capacitor C1 connected to pin 4 (CAP−) for switched-capacitor voltage conversion operation.
3 GND power_in Ground reference and return path for device circuits and external loads.
4 CAP− output Negative terminal of external charge pump capacitor C1 connected to pin 2 (CAP+) for switched-capacitor voltage conversion operation.
5 VOUT output Negative output voltage terminal generating output voltage with magnitude equal to positive input supply voltage (1.5 V to 10 V input produces −1.5 V to −10 V output) with typical conversion efficiency up to 99.9% at open circuit.
6 LV input Low voltage mode control input; tie to GND for VIN < 3.5 V to enable low-voltage operation by bypassing internal series regulator, or leave floating for VIN ≥ 3.5 V to prevent device latchup.
7 OSC bidirectional Oscillator control terminal with internal RC oscillator operating at nominal 10 kHz (VCC = 5 V), tunable by adding capacitor to ground for lower frequency or override by external clock input with 1 kΩ series resistor for higher frequency.
8 VCC power_in Positive supply voltage input with recommended operating range 1.5 V to 10 V for full device functionality from −40°C to 125°C.

Key specifications

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

CAD (KiCad official)

  • Symbol: TL7660IDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tl7660idr-etched.step / tl7660idr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl7660idr.step / tl7660idr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 f894cae2eb99e40e, retrieved 2026-09-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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