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TC7660EOA

Public Made by Adom

by adom

Microchip Tech DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TC7660EOA

Microchip Tech · DC-DC Converters · SOIC-8

TC7660EOA from Microchip Tech, 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 connection.
2 CAP+ passive Positive terminal of the charge pump (flying) capacitor, used to transfer charge from the input source to the output; a low-ESR capacitor is recommended.
3 GND power_in Ground terminal, the input and output zero volt reference.
4 CAP- passive Negative terminal of the charge pump (flying) capacitor; correct orientation is imperative when using a polarized capacitor.
5 VOUT power_out Negative output voltage, connected to the negative terminal of the output capacitor; a low-ESR capacitor is recommended, and larger values lower the output ripple.
6 LV input Low voltage pin that ensures proper internal oscillator operation below 3.5V; connect to GND for V+ below 3.5V, otherwise leave floating.
7 OSC input Oscillator control input; bypass with an external capacitor to ground to slow the oscillator (nominal 10 kHz), or overdrive it to speed it up.
8 V+ power_in Positive power supply input, 1.5V to 10V operating range; bypass to GND with a low-ESR capacitor.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Power Supply Chip
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Current I+ 80 180 µA V+ = 5V, RL = ∞, over operating temperature range 2
Supply Voltage Range, High V+H 3 10 V Min TA to Max, RL = 10 kΩ, LV Open 2
Supply Voltage Range, Low V+L 1.5 3.5 V Min TA to Max, RL = 10 kΩ, LV to GND 2
Output Source Resistance ROUT 70 100 Ω IOUT = 20 mA, TA = +25°C 2
Output Source Resistance (E and I Device) ROUT 130 Ω IOUT = 20 mA, TA ≤ +85°C (E and I Device) 2
Power Efficiency PEFF 95 98 % RL = 5 kΩ 2
Voltage Conversion Efficiency VOUTEFF 97 99.9 % RL = ∞ 2
Oscillator Frequency fOSC 10 kHz Pin 7 open 2
Oscillator Impedance ZOSC 1 MΩ V+ = 2V 2
Oscillator Impedance ZOSC 100 kΩ V+ = 5V 2
Supply Voltage V+ 10.5 V 2
Current into LV 20 µA V+ > 3.5V 2
Operating Temperature Range, E Suffix -40 85 °C E Suffix 2
Storage Temperature Range -65 160 °C 2
ESD protection on all pins (HBM) 3 kV HBM 2
Maximum Junction Temperature TJ 150 °C 2

CAD (KiCad official)

  • Symbol: TC7660EOA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tc7660eoa-etched.step / tc7660eoa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tc7660eoa.step / tc7660eoa.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (20 pp, sha256 6002a8cdc2b164f1, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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