component
MX1217AS
Public Made by Adomby adom
Wuxi Maxinmicro AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MX1217AS
Wuxi Maxinmicro · AC-DC Controllers And Regulators · SOP-8
MX1217AS from Wuxi Maxinmicro, in a SOP-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 | VDD | power_in | Power supply pin; the recommended VDD supply voltage is 9-48V and the UVLO and VDD over-voltage protection thresholds apply to this pin. |
| 2 | GND | power_in | Ground pin. |
| 3 | FB | input | Feedback input pin; the PWM duty cycle is set by the voltage on this pin together with the current-sense signal on the CS pin. |
| 4 | CS | input | Current sense pin; external resistors connect to ground here to provide cycle-by-cycle current limiting. |
| 5 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
| 6 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
| 7 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
| 8 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Wuxi Maxinmicro |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| VDD supply voltage | VDD | 9 | 48 | V | 2 | ||
| VDD Voltage | VDD | 60 | V | 2 | |||
| Drain Voltage (off state) | 650 | V | 2 | ||||
| FB Input Voltage | -0.3 | 7 | V | 2 | |||
| CS Input Voltage | -0.3 | 7 | V | 2 | |||
| Min/Max Operating Junction Temperature | TJ | -40 | 150 | ℃ | 2 | ||
| Min/Max Storage Temperature | TSTG | -55 | 150 | ℃ | 2 | ||
| Thermal resistance junction to ambient | RθJA | 90 | ℃/W | SOP8; drain pin connected to 200mm2 PCB copper clad | 2 | ||
| VDD startup current | I startup | 2 | 5 | μA | VDD=UVLO_OFF-1V | 4 | |
| VDD normal operation current | I_VDD | 2 | 3 | mA | VDD=18V, CS=0V, FB=2.5V | 4 | |
| Burst mode operation current | I_Burst | 0.3 | 0.5 | mA | VDD=18V, CS=0V, FB=0.5V | 4 | |
| VDD under voltage lockout enter | UVLO_ON | 6.7 | 7.2 | 7.7 | V | CS=3.3V, VDD step down | 4 |
| VDD under voltage lockout exit | UVLO_OFF | 15.5 | 16.5 | 17.5 | V | CS=3.3V, VDD step up | 4 |
| Over voltage protection voltage | VDD_OVP | 50 | 52 | 54 | V | FB=3V, CS=0V, VDD step up | 4 |
| Over load protection threshold | VTH_OLP | 4 | 4.4 | 4.8 | V | 4 | |
| Max duty cycle | D_MAX | 70 | 90 | % | VDD=18V, VFB=3V, VCS=0.3V | 4 | |
| Internal current limiting threshold voltage with zero duty cycle | VCS_PK | 0.492 | 0.5 | 0.508 | V | 4 | |
| Second rectifier diode short protection threshold voltage | VCS_SRST | 1.1 | 1.2 | 1.3 | V | 4 | |
| Frequency jittering | FOSC_JT | -7 | 7 | % | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | Note: Drain Pin Connected to 200mm2 PCB copper clad. | 2 |
CAD (KiCad official)
- Symbol:
MX1217AS - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
mx1217as-etched.step/mx1217as-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mx1217as.step/mx1217as.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Wuxi Maxinmicro datasheet (10 pp, sha256
fd11da6da5ebddcd, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).
# MX1217AS
**Wuxi Maxinmicro** · AC-DC Controllers And Regulators · SOP-8
MX1217AS from Wuxi Maxinmicro, in a SOP-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 | VDD | power_in | Power supply pin; the recommended VDD supply voltage is 9-48V and the UVLO and VDD over-voltage protection thresholds apply to this pin. |
| 2 | GND | power_in | Ground pin. |
| 3 | FB | input | Feedback input pin; the PWM duty cycle is set by the voltage on this pin together with the current-sense signal on the CS pin. |
| 4 | CS | input | Current sense pin; external resistors connect to ground here to provide cycle-by-cycle current limiting. |
| 5 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
| 6 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
| 7 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
| 8 | Drain | output | Drain of the internal power MOSFET, connected to the primary winding of the transformer; off-state drain voltage is rated 650V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Wuxi Maxinmicro |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| VDD supply voltage | VDD | 9 | | 48 | V | | 2 |
| VDD Voltage | VDD | | | 60 | V | | 2 |
| Drain Voltage (off state) | | | | 650 | V | | 2 |
| FB Input Voltage | | -0.3 | | 7 | V | | 2 |
| CS Input Voltage | | -0.3 | | 7 | V | | 2 |
| Min/Max Operating Junction Temperature | TJ | -40 | | 150 | ℃ | | 2 |
| Min/Max Storage Temperature | TSTG | -55 | | 150 | ℃ | | 2 |
| Thermal resistance junction to ambient | RθJA | | 90 | | ℃/W | SOP8; drain pin connected to 200mm2 PCB copper clad | 2 |
| VDD startup current | I startup | | 2 | 5 | μA | VDD=UVLO_OFF-1V | 4 |
| VDD normal operation current | I_VDD | | 2 | 3 | mA | VDD=18V, CS=0V, FB=2.5V | 4 |
| Burst mode operation current | I_Burst | | 0.3 | 0.5 | mA | VDD=18V, CS=0V, FB=0.5V | 4 |
| VDD under voltage lockout enter | UVLO_ON | 6.7 | 7.2 | 7.7 | V | CS=3.3V, VDD step down | 4 |
| VDD under voltage lockout exit | UVLO_OFF | 15.5 | 16.5 | 17.5 | V | CS=3.3V, VDD step up | 4 |
| Over voltage protection voltage | VDD_OVP | 50 | 52 | 54 | V | FB=3V, CS=0V, VDD step up | 4 |
| Over load protection threshold | VTH_OLP | 4 | 4.4 | 4.8 | V | | 4 |
| Max duty cycle | D_MAX | | 70 | 90 | % | VDD=18V, VFB=3V, VCS=0.3V | 4 |
| Internal current limiting threshold voltage with zero duty cycle | VCS_PK | 0.492 | 0.5 | 0.508 | V | | 4 |
| Second rectifier diode short protection threshold voltage | VCS_SRST | 1.1 | 1.2 | 1.3 | V | | 4 |
| Frequency jittering | FOSC_JT | -7 | | 7 | % | | 4 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | | Note: Drain Pin Connected to 200mm2 PCB copper clad. | 2 |
## CAD (KiCad official)
- Symbol: `MX1217AS`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `mx1217as-etched.step` / `mx1217as-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mx1217as.step` / `mx1217as.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Wuxi Maxinmicro datasheet](docs/mx1217as-datasheet.pdf) (10 pp, sha256 `fd11da6da5ebddcd`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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/mx1217as-datasheet.pdf)