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MX1210H

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Wuxi Maxinmicro AC-DC Controllers And Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MX1210H

Wuxi Maxinmicro · AC-DC Controllers And Regulators · SOT-23-6

MX1210H from Wuxi Maxinmicro, in a SOT-23-6. 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 GND power_in Ground pin.
2 FB input Feedback input pin whose voltage level, together with the CS current-sense signal, sets the PWM duty cycle, with FB input voltage limited to -0.3 to 7V.
3 DMAG input Demagnetization input that senses input and output voltages from the auxiliary winding, with DMAG input voltage limited to -0.3 to 7V.
4 CS input Current sense pin, connected through resistors to ground, with CS input voltage limited to -0.3 to 7V.
5 VDD power_in Power supply pin, with recommended VDD supply voltage of 10-48V and a 60V absolute maximum DC supply voltage.
6 GATE output Gate driver output for the external MOSFET.

Key specifications

Parameter Value
Manufacturer Wuxi Maxinmicro
Package SOT-23-6
Category Power Management (PMIC)
Pins 6

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 DC supply voltage VDD 60 V 2
FB input voltage -0.3 7 V 2
CS input voltage -0.3 7 V 2
DMAG input voltage -0.3 7 V 2
Junction temperature TJ -40 150 ℃ 2
Ambient temperature TA -40 85 ℃ 2
Storage temperature TSTG -55 150 ℃ 2
ESD (HBM) -2 2 kV 2
Leading temperature 260 ℃ soldering, 10secs 2
VDD supply voltage VDD 10 48 V 2
VDD startup current I startup 2 20 μA VDD=UVLO_OFF-1V 4
VDD normal operation current I_VDD 1 1.5 2.5 mA VFB=3V 4
Burst mode operation current I_Burst 0.38 0.45 mA VFB=0.5V 4
VDD under voltage lockout enter UVLO_ON 6.5 7.2 8 V 4
VDD under voltage lockout exit UVLO_OFF 15.2 16.2 17.2 V 4
Over voltage protection voltage (VDD_OVP) VDD_OVP 50 52 54 V FB=3V, VDD ramp up until gate clock is off 4
Max duty cycle D_MAX 70 90 % VDD=18V, VFB=3V, VCS=0.3V 4
Over load protection VFB_OLP 4.7 5 5.5 V 4
Internal current limiting threshold voltage with zero duty cycle VCS_PK 0.492 0.5 0.508 V 4
Secondary rectifier diode short protection threshold voltage VCS_SRST 1.1 1.2 1.3 V 4
External OTP delay time TD_EXOTP 42 49 56 ms 4
Normal frequency of high output voltage FOSC_NOM 90 100 110 kHz VDD=18V, FB=3V, CS=0V 5
Frequency jittering FOSC_JT -7 7 % 5
Output over voltage protection threshold voltage VTH_OVP 3.5 3.6 3.7 V 5
Output under-voltage protection threshold voltage VTH_UVP 0.3 0.35 0.4 V 5
Output under voltage protection delay time TD_UVP 9 12 15 ms 5
Brown in protection threshold current IDMAG_BNI 115 130 145 μA 5
Brown out protection threshold current IDMAG_BNO 110 130 150 μA 5
Brown out protection delay time TD_BNO 42 49 56 ms 5
Restart time for auto-recovery protection T_recovery 1.4 s Other protection 4
Latch release voltage V_Latch 4.8 V External OTP/VDD_OVP/VO_OVP 4
FB open loop voltage VFB_Open 5.1 V 4
PWM input gain Avcs 3.5 V/V VDMAG>1.25V 4
PWM input gain Avcs 4.5 V/V VDMAG<1.25V 4
FB pin short circuit current IFB_short 250 μA Current for short FB to GND 4
Threshold to enter green mode VFB_green 2.05 V 4
Threshold to exit burst mode VREF_burst_H 1.2 V 4
Threshold to enter burst mode VREF_burst_L 1.1 V 4
Over load debounce time TD_OLP 60 ms 4
Input impedance RFB_IN 20 kΩ 4
Soft start time of CS threshold TCS_SST 4 ms 4
Leading edge blanking time T_blanking 300 ns 4
Over current detection and delay TD_OC 90 ns From over current occurs till gate driver turns off 4
CS voltage clamper VCS_PKclamp 0.715 V 4
External OTP threshold voltage VCS_EXOTP 0.8 V DMAG=1.8V 4
Frequency temperature stability FOSC_TEMP 1 % 5
Frequency VDD voltage stability FOSC_VDD 1 % 5
Burst mode frequency FOSC_burst 22 kHz 5
Gate low voltage VGL 1 V VDD=15V, Io=20mA 5
Gate high voltage VGH 8 V VDD=15V, Io=20mA 5
Gate clamp voltage VG_clamping 11.5 V 5
Gate voltage rising time T_rise 240 ns 1.2V ~ 10.8V @ CL=1000pF 5
Gate voltage falling time T_fall 25 ns 10.8V ~ 1.2V @ CL=1000pF 5
Blanking time of DMAG pin at light load TBLK_LL 1.7 μs VFB<2.05V 5
Blanking time of DMAG pin at high load TBLK_HL 2.3 μs VFB>2.05V 5
Hysteresis of high VIN entry IDMAG_HVHYS 7.5 μA 5
Maximum DMAG sourcing current IDMAG_MAX 1000 μA 5
Internal over temperature protection threshold OTP_in 155 ℃ 5
Power dissipation PD 0.59 W TA=25℃ 2
Package thermal resistance junction-to-ambient RθJA 200 ℃/W 2

CAD (KiCad official)

  • Symbol: MX1210H
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: mx1210h-etched.step / mx1210h-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mx1210h.step / mx1210h.glb are the bare package body.

Provenance

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

  • Datasheet: Wuxi Maxinmicro datasheet (13 pp, sha256 4e2d109aad5cdc13, retrieved 2026-10-17, 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