component

tl7660cdr

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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TL7660CDR

Texas Instruments · DC-DC Converters · SOIC-8

TL7660CDR 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 NC unconnected No internal connection. Leave floating or tie as convenient for board layout.
2 CAP+ passive Positive terminal of the external pump capacitor C1 (typ. 10 µF). The internal charge-pump switches drive this node between VCC and CAP-; with polarized capacitors the positive terminal of C1 must connect here.
3 GND power_in Ground reference for the device. Also the return for the reservoir capacitor C2 (positive terminal of C2 connects to GND for negative-conversion mode).
4 CAP- passive Negative terminal of the external pump capacitor C1. During the transfer half-cycle this node is shifted negative by VCC, delivering charge to the output reservoir capacitor C2 through the internal power MOS switches.
5 VOUT power_out Charge-pump output. In negative-conversion mode delivers -VCC (nominally -1.5 V to -10 V) into the external reservoir capacitor C2 (typ. 10 µF). Output source resistance is ~45 Ω typ. at VCC=5V, IO=20mA. Must not go more positive than GND to avoid latchup.
6 LV input Low-voltage operation control. Tie to GND to bypass the internal series regulator for VIN < 3.5 V. Leave OPEN for VCC > 3.5 V to prevent device latchup. Maximum current into LV is 20 µA for VCC > 3.5 V.
7 OSC bidirectional Oscillator terminal. Internal RC oscillator runs at ~10 kHz at VCC=5V. Frequency can be lowered by adding an external capacitor (COSC) between OSC and VCC, or increased by overdriving OSC with an external clock (through a 1 kΩ series resistor to prevent latchup; add 10 kΩ pull-up to VCC if driven from TTL). Pump frequency = fOSC/2.
8 VCC power_in Positive supply voltage input, 1.5 V to 10 V (10.5 V abs max). Typical supply current 45 µA at VCC=5V, RL=∞. If source impedance is 25-30 Ω, add a 2.2 µF cap from VCC to GND to limit input slew to <2 V/µs.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

  • TL7660CDR
  • TL7660CDRCDG4
  • TL7660CDRG4
  • TL7660CDRIDR
  • TL7660CDRID
  • TL7660CDRIDRG4
  • TL7660CDRCDGKR
  • TL7660CDRCDGKT
  • TL7660CDRIDGKR
  • TL7660CDRIDGKT
  • TL7660CDRIDGKTG4
  • TL7660CDRCP
  • TL7660CDRCPE4
  • TL7660CDRIP

CAD (KiCad official)

  • Symbol: TL7660CDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tl7660cdr-etched.step / tl7660cdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl7660cdr.step / tl7660cdr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (None pp, sha256 f6fd37da85d44c9a, 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).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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