component

MX1217AS

Public Made by Adom

by adom

Wuxi Maxinmicro AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)mx1217asfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

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 (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