component
TC7660SEOA
Public Made by Adomby 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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TC7660SEOA
Microchip Tech · DC-DC Converters · SOIC-8
TC7660SEOA 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 | BOOST | input | Switching frequency boost pin; connecting it to V+ raises the oscillator frequency from 10 kHz typical to 45 kHz typical. |
| 2 | CAP+ | passive | Positive terminal of the charge pump (flying) capacitor; a low ESR capacitor is recommended and larger values lower the output resistance. |
| 3 | GND | power_in | Ground terminal, the input and output zero volt reference. |
| 4 | CAP- | passive | Negative terminal of the charge pump (flying) capacitor; observe correct orientation when using a polarized capacitor. |
| 5 | VOUT | power_out | Negative output voltage connection for the charge pump output capacitor; a low ESR capacitor is recommended and larger values lower the output ripple. |
| 6 | LV | input | Low voltage pin; connect to GND for V+ below 3.5V, otherwise leave it open (floating). |
| 7 | OSC | input | Oscillator control input; an external capacitor slows the oscillator, with the nominal frequency being 10 kHz. |
| 8 | V+ | power_in | Positive power supply input (1.5V to 12V operating range, 13V absolute maximum); 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 (Boost pin open or GND) | I+ | 80 | 160 | µA | RL = ∞ | 3 | |
| Supply Current (Boost pin open or GND) | I+ | 180 | µA | -40°C ≤ TA ≤ +85°C | 3 | ||
| Supply Current (Boost pin = V+) | I+ | 350 | µA | -40°C ≤ TA ≤ +85°C | 3 | ||
| Supply Voltage Range, High | V+H | 3 | 12 | V | Min. ≤ TA ≤ Max, RL = 10 kΩ, LV Open | 3 | |
| Supply Voltage Range, Low | V+L | 1.5 | 3.5 | V | Min. ≤ TA ≤ Max, RL = 10 kΩ, LV to GND | 3 | |
| Output Source Resistance | ROUT | 60 | 100 | Ω | IOUT = 20 mA | 3 | |
| Output Source Resistance | ROUT | 70 | 120 | Ω | IOUT = 20 mA, -40°C ≤ TA ≤ +85°C | 3 | |
| Power Efficiency | PEFF | 96 | 98 | % | RL = 5 kΩ, Boost Pin Open | 3 | |
| Power Efficiency | PEFF | 95 | 98 | % | TMIN ≤ TA ≤ TMAX; Boost Pin Open | 3 | |
| Voltage Conversion Efficiency | VOUTEFF | 99 | 99.9 | % | RL = ∞ | 4 | |
| Operating Temperature Range (E suffix) | TA | -40 | 85 | °C | E suffix | 4 | |
| Storage Temperature Range | TA | -65 | 150 | °C | 4 | ||
| Supply Voltage | 13 | V | 3 | ||||
| Current into LV | 20 | µA | V+ > 3.5V | 3 | |||
| Lead Temperature (Soldering, 10s) | 300 | °C | 3 | ||||
| Thermal Resistance, 8LD SOIC | θJA | 148.5 | °C/W | 4 | |||
| Oscillator Frequency | fOSC | 10 | kHz | Pin 7 open, Pin 1 open or GND | 3 | ||
| Oscillator Frequency | fOSC | 45 | kHz | Boost Pin = V+ | 3 | ||
| Power Efficiency | PEFF | 88 | % | Boost Pin = V+ | 3 | ||
| Oscillator Impedance | ZOSC | 1 | MΩ | V+ = 2V | 4 | ||
| Oscillator Impedance | ZOSC | 100 | kΩ | V+ = 5V | 4 |
CAD (KiCad official)
- Symbol:
TC7660SEOA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tc7660seoa-etched.step/tc7660seoa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tc7660seoa.step/tc7660seoa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (24 pp, sha256
3fcf786534a9ed95, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).
# TC7660SEOA
**Microchip Tech** · DC-DC Converters · SOIC-8
TC7660SEOA 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 | BOOST | input | Switching frequency boost pin; connecting it to V+ raises the oscillator frequency from 10 kHz typical to 45 kHz typical. |
| 2 | CAP+ | passive | Positive terminal of the charge pump (flying) capacitor; a low ESR capacitor is recommended and larger values lower the output resistance. |
| 3 | GND | power_in | Ground terminal, the input and output zero volt reference. |
| 4 | CAP- | passive | Negative terminal of the charge pump (flying) capacitor; observe correct orientation when using a polarized capacitor. |
| 5 | VOUT | power_out | Negative output voltage connection for the charge pump output capacitor; a low ESR capacitor is recommended and larger values lower the output ripple. |
| 6 | LV | input | Low voltage pin; connect to GND for V+ below 3.5V, otherwise leave it open (floating). |
| 7 | OSC | input | Oscillator control input; an external capacitor slows the oscillator, with the nominal frequency being 10 kHz. |
| 8 | V+ | power_in | Positive power supply input (1.5V to 12V operating range, 13V absolute maximum); 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 (Boost pin open or GND) | I+ | | 80 | 160 | µA | RL = ∞ | 3 |
| Supply Current (Boost pin open or GND) | I+ | | | 180 | µA | -40°C ≤ TA ≤ +85°C | 3 |
| Supply Current (Boost pin = V+) | I+ | | | 350 | µA | -40°C ≤ TA ≤ +85°C | 3 |
| Supply Voltage Range, High | V+H | 3 | | 12 | V | Min. ≤ TA ≤ Max, RL = 10 kΩ, LV Open | 3 |
| Supply Voltage Range, Low | V+L | 1.5 | | 3.5 | V | Min. ≤ TA ≤ Max, RL = 10 kΩ, LV to GND | 3 |
| Output Source Resistance | ROUT | | 60 | 100 | Ω | IOUT = 20 mA | 3 |
| Output Source Resistance | ROUT | | 70 | 120 | Ω | IOUT = 20 mA, -40°C ≤ TA ≤ +85°C | 3 |
| Power Efficiency | PEFF | 96 | 98 | | % | RL = 5 kΩ, Boost Pin Open | 3 |
| Power Efficiency | PEFF | 95 | 98 | | % | TMIN ≤ TA ≤ TMAX; Boost Pin Open | 3 |
| Voltage Conversion Efficiency | VOUTEFF | 99 | 99.9 | | % | RL = ∞ | 4 |
| Operating Temperature Range (E suffix) | TA | -40 | | 85 | °C | E suffix | 4 |
| Storage Temperature Range | TA | -65 | | 150 | °C | | 4 |
| Supply Voltage | | | | 13 | V | | 3 |
| Current into LV | | | | 20 | µA | V+ > 3.5V | 3 |
| Lead Temperature (Soldering, 10s) | | | | 300 | °C | | 3 |
| Thermal Resistance, 8LD SOIC | θJA | | 148.5 | | °C/W | | 4 |
| Oscillator Frequency | fOSC | | 10 | | kHz | Pin 7 open, Pin 1 open or GND | 3 |
| Oscillator Frequency | fOSC | | 45 | | kHz | Boost Pin = V+ | 3 |
| Power Efficiency | PEFF | | 88 | | % | Boost Pin = V+ | 3 |
| Oscillator Impedance | ZOSC | | 1 | | MΩ | V+ = 2V | 4 |
| Oscillator Impedance | ZOSC | | 100 | | kΩ | V+ = 5V | 4 |
## CAD (KiCad official)
- Symbol: `TC7660SEOA`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tc7660seoa-etched.step` / `tc7660seoa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tc7660seoa.step` / `tc7660seoa.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/tc7660seoa-datasheet.pdf) (24 pp, sha256 `3fcf786534a9ed95`, 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](docs/tc7660seoa-datasheet.pdf)