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PI3USB42ZMEX

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Diodes Incorporated AC-DC Controllers & Regulators, UQFN-10(1.4x1.8). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PI3USB42ZMEX

Diodes Incorporated · AC-DC Controllers & Regulators · UQFN-10(1.4x1.8)

PI3USB42ZMEX from Diodes Incorporated, in a UQFN-10(1.4x1.8). 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 D+ bidirectional USB data bus D+ common terminal, switched to D+A or D+B per SEL; DC switch voltage rated -0.5V to 5.25V.
2 D- bidirectional USB data bus D- common terminal, switched to D-A or D-B per SEL; DC switch voltage rated -0.5V to 5.25V.
3 GND power_in Ground.
4 D-A bidirectional Multiplexed source input D- channel A, connected to D- when /OE is low and SEL is low.
5 D+A bidirectional Multiplexed source input D+ channel A, connected to D+ when /OE is low and SEL is low.
6 D-B bidirectional Multiplexed source input D- channel B, connected to D- when /OE is low and SEL is high.
7 D+B bidirectional Multiplexed source input D+ channel B, connected to D+ when /OE is low and SEL is high.
8 /OE input Switch enable, active low; when high all I/Os are Hi-Z; control input must not float and is rated 0 to 4.3V.
9 VDD power_in Positive power supply, operating range 1.8V to 4.5V.
10 SEL input Switch select, low routes to A channel and high routes to B channel; must not float and is rated 0 to 4.3V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package UQFN-10(1.4x1.8)
Category Power Management ICs
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage VDD 1.8 4.5 V 3
Control Input Voltage VCNTRL 0 4.3 V control input must be held high or low, not float 3
Switch Input Voltage VINPUT -0.5 V max printed as VDD+0.5 3
Operating Temperature TA -40 85 °C 3
Storage Temperature -65 150 °C printed '65℃ to +150℃' 3
Supply Voltage to Ground Potential -0.5 5 V 3
Control Input Voltage -0.5 4.6 V 3
DC Switch Voltage -0.5 5.25 V D+, D-, D+A, D-A, D+B and D-B 3
DC Output Current 120 mA 3
Power Dissipation 0.5 W 3
Input High Voltage VIH 1.2 V Guaranteed High Level; TA=-40 to 85°C, VDD=3.0-4.5V 3
Input Low Voltage VIL 0.6 V Guaranteed Low Level 3
Clamp Diode Voltage VIK -0.7 -1.2 V VDD = Max., ISEL = -18mA 3
Input High Current IIH -100 100 nA VDD = Max., VSEL = VDD 3
Input Low Current IIL -100 100 nA VDD = Max., VSEL = GND 3
Switch On-Resistance RON 4 5.5 Ω VDD = Min., 0 ≤ VINPUT ≤0.4V, IINPUT= -40mA 3
On-Resistance match from center ports to any other port △RON 0.1 1 Ω VDD = Min., 0 ≤ VINPUT ≤0.4V, IINPUT = -40mA 3
Output leakage current when port is off IOZ -100 100 nA VDD = 4.5V, 0 ≤ VINPUT ≤0.4V 3
Power-Off Leakage Current IOFF 100 nA VINPUT =0V~4.3V, VDD=0V 3
Quiescent Power Supply current ICC 100 nA VDD = Max., VSEL = VDD or GND 3
Increase in ICC Current per Control Voltage and VDD ICCT 5.8 15 µA VCNTRL =1.8V, VDD=4.5V 3
On-Resistance Flatness RFLAT(ON) 0.25 Ω VDD = Min., 0 ≤ VINPUT ≤0.4V, IINPUT = -40mA 3
Control logic pin Input Capacitance CCNTRL 6 pF TA=25°C, VDD=3.0V, f=1MHz, VSEL = 0V 4
Switch Capacitance, Switch OFF COFF 1.9 pF TA=25°C, VDD=3.0V, f=1MHz, VSEL = 0V 4
Switch Capacitance, Switch ON CON 6 pF TA=25°C, VDD=3.0V, f=1MHz, VSEL = 0V 4
Crosstalk XTALK -41 dB RL = 50Ω, f = 240 MHz 4
OFF Isolation OIRR -37 dB RL = 50Ω, f = 240 MHz 4
-3dB Bandwidth BW 770 MHz RL = 50Ω 4
Propagation Delay tPD 0.25 ns See Test Circuit for Electrical Characteristics 4
Line Enable Time - SEL to D(+/-), D(+/-)n tPZH, tPZL 25 ns See Test Circuit for Electrical Characteristics 4
Line Disable Time - SEL to D(+/-), D(+/-)n tPHZ, tPLZ 4 ns See Test Circuit for Electrical Characteristics 4
Break-Before-Make tBBM 7 ns 4
Output skew, bit-to-bit tSKb-b 35 ps VDD = 3V 4
Output skew, bit-to-bit tSKb-b 60 ps VDD = 4V 4

CAD (KiCad official)

  • Symbol: PI3USB42ZMEX
  • Footprint: Package_DFN_QFN:UQFN-10_1.4x1.8mm_P0.4mm
  • 3D model: UQFN-10(1.4x1.8) (KiCad packages3D, STEP)
  • 3D model files: pi3usb42zmex-etched.step / pi3usb42zmex-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pi3usb42zmex.step / pi3usb42zmex.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (9 pp, sha256 9314013e885fe10d, retrieved 2026-10-22, 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