component
MCP1663T-E
Public Made by Adomby adom
Microchip Tech DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MCP1663T-E
Microchip Tech · DC-DC Converters · SOT-23-5
MCP1663T-E from Microchip Tech, in a SOT-23-5. 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 | SW | output | Switch node pin that carries the boost inductor current (1.8A peak typical), with the inductor connected from the input voltage to SW and the integrated N-channel switch drain internally tied to this node. |
| 2 | GND | power_in | Ground return pin for circuit ground, and the traces from the input cap return, output cap return and GND pin must be as short as possible to minimize noise on the GND pin. |
| 3 | VFB | input | Feedback voltage pin used with a resistor divider to regulate the output voltage, with a VFB voltage of 1.227V typical. |
| 4 | EN | input | Logic-level enable input where a logic high above 85% of VIN enables the regulator and a logic low below 7.5% of VIN disables it, lowering quiescent current while disabled. |
| 5 | VIN | power_in | Input voltage pin that must be decoupled from GND with a 4.7 µF minimum capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | 2.4 | 5.5 | V | Note 1 | 3 | |
| Output Voltage Adjust Range | VOUT | 32 | V | Note 1 | 3 | ||
| Feedback Voltage | VFB | 1.19 | 1.227 | 1.264 | V | 3 | |
| VFB Accuracy | -3 | 3 | % | 3 | |||
| Line Regulation | /(VFB/VFB)/VIN/ | 0.05 | 0.5 | %/V | VIN = 3V to 5V, IOUT = 20 mA, VOUT = 12.0V | 4 | |
| Load Regulation | /VFB/VFB/ | 0.5 | 1.5 | % | IOUT = 20 mA to 125 mA, VIN = 3.3V, VOUT = 12.0V | 4 | |
| Maximum Duty Cycle | DCMAX | 88 | 90 | % | Note 4 | 4 | |
| Switching Frequency | fSW | 425 | 500 | 575 | kHz | ±15% | 4 |
| EN Input Logic High | VIH | 85 | % of VIN | IOUT = 1 mA | 4 | ||
| EN Input Logic Low | VIL | 7.5 | % of VIN | IOUT = 1 mA | 4 | ||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C | Steady State | 4 | |
| Maximum Junction Temperature | TJ | 150 | °C | Transient | 4 | ||
| VSW, GND | 36 | V | 3 | ||||
| EN, VIN, GND | 6 | V | 3 | ||||
| VFB | 1.3 | V | 3 | ||||
| Storage Temperature | -65 | 150 | °C | 3 | |||
| Ambient Temperature with Power Applied | -40 | 125 | °C | 3 | |||
| Operating Junction Temperature | -40 | 150 | °C | 3 | |||
| ESD Protection HBM | 4 | kV | ESD protection on all pins, HBM | 3 | |||
| Thermal Resistance, 5LD-SOT-23 | JA | 201 | °C/W | 4 |
CAD (KiCad official)
- Symbol:
MCP1663T-E - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
mcp1663t-e-etched.step/mcp1663t-e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp1663t-e.step/mcp1663t-e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (38 pp, sha256
b39ca566afe92958, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).
# MCP1663T-E
**Microchip Tech** · DC-DC Converters · SOT-23-5
MCP1663T-E from Microchip Tech, in a SOT-23-5. 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 | SW | output | Switch node pin that carries the boost inductor current (1.8A peak typical), with the inductor connected from the input voltage to SW and the integrated N-channel switch drain internally tied to this node. |
| 2 | GND | power_in | Ground return pin for circuit ground, and the traces from the input cap return, output cap return and GND pin must be as short as possible to minimize noise on the GND pin. |
| 3 | VFB | input | Feedback voltage pin used with a resistor divider to regulate the output voltage, with a VFB voltage of 1.227V typical. |
| 4 | EN | input | Logic-level enable input where a logic high above 85% of VIN enables the regulator and a logic low below 7.5% of VIN disables it, lowering quiescent current while disabled. |
| 5 | VIN | power_in | Input voltage pin that must be decoupled from GND with a 4.7 µF minimum capacitor. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | 2.4 | | 5.5 | V | Note 1 | 3 |
| Output Voltage Adjust Range | VOUT | | | 32 | V | Note 1 | 3 |
| Feedback Voltage | VFB | 1.19 | 1.227 | 1.264 | V | | 3 |
| VFB Accuracy | | -3 | | 3 | % | | 3 |
| Line Regulation | /(VFB/VFB)/VIN/ | | 0.05 | 0.5 | %/V | VIN = 3V to 5V, IOUT = 20 mA, VOUT = 12.0V | 4 |
| Load Regulation | /VFB/VFB/ | | 0.5 | 1.5 | % | IOUT = 20 mA to 125 mA, VIN = 3.3V, VOUT = 12.0V | 4 |
| Maximum Duty Cycle | DCMAX | 88 | 90 | | % | Note 4 | 4 |
| Switching Frequency | fSW | 425 | 500 | 575 | kHz | ±15% | 4 |
| EN Input Logic High | VIH | 85 | | | % of VIN | IOUT = 1 mA | 4 |
| EN Input Logic Low | VIL | | | 7.5 | % of VIN | IOUT = 1 mA | 4 |
| Operating Junction Temperature Range | TJ | -40 | | 125 | °C | Steady State | 4 |
| Maximum Junction Temperature | TJ | | | 150 | °C | Transient | 4 |
| VSW, GND | | | | 36 | V | | 3 |
| EN, VIN, GND | | | | 6 | V | | 3 |
| VFB | | | | 1.3 | V | | 3 |
| Storage Temperature | | -65 | | 150 | °C | | 3 |
| Ambient Temperature with Power Applied | | -40 | | 125 | °C | | 3 |
| Operating Junction Temperature | | -40 | | 150 | °C | | 3 |
| ESD Protection HBM | | | | 4 | kV | ESD protection on all pins, HBM | 3 |
| Thermal Resistance, 5LD-SOT-23 | JA | | 201 | | °C/W | | 4 |
## CAD (KiCad official)
- Symbol: `MCP1663T-E`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `mcp1663t-e-etched.step` / `mcp1663t-e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcp1663t-e.step` / `mcp1663t-e.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588940142186795008) (38 pp, sha256 `b39ca566afe92958`, retrieved 2026-10-21, tier: lcsc)
- **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/mcp1663t-e-datasheet.pdf)