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MAX6730AUTSD3+T

Maxim Integrated · Monitors & Reset Circuits · SOT-23-6

MAX6730AUTSD3+T from Maxim Integrated, 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 RST output Active-low reset output that is open-drain on the MAX6730 and requires an external pullup resistor; it asserts low when VCC1 or VCC2 falls below its threshold, RSTIN falls below its reset threshold, or MR is driven low.
2 GND power_in Ground reference for the device.
3 WDO output Active-low watchdog output that is open-drain on the MAX6730 and requires an external pullup resistor; it asserts low when no WDI transition occurs within the watchdog timeout period (tWD) or when an undervoltage condition exists on VCC1, VCC2, or RSTIN.
4 MR input Active-low manual reset input that forces a reset when driven low and holds RST asserted for the reset timeout period after release; it has an internal 50kΩ pullup to VCC1, so it may be left open or connected to VCC1 if unused.
5 WDI input Watchdog input that must see a rising or falling edge within the watchdog timeout period (35s min initial, 1.12s min normal) or WDO asserts low; leaving it unconnected does not disable the watchdog, and a 100kΩ (max) pulldown to ground is recommended if it is not driven by a logic-level source.
6 VCC1 power_in Primary supply-voltage input that powers the device when it is greater than VCC2, operates over 0.8V to 5.5V, and is the input to the primary reset threshold monitor.

Key specifications

Parameter Value
Manufacturer Maxim Integrated
Package SOT-23-6
Category Power Management ICs
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
Supply Voltage VCC1, VCC2 0.8 5.5 V 2
Supply Current (VCC1 < +5.5V) ICC1 15 39 µA VCC1 < +5.5V, all I/O connections open, outputs not asserted 2
Supply Current (VCC1 < +3.6V) ICC1 10 28 µA VCC1 < +3.6V, all I/O connections open, outputs not asserted 2
VCC1 Reset Threshold (suffix S) VTH1 2.85 2.925 3 V S (falling) 2
Reset Timeout Period (suffix D3) tRP 140 210 280 ms D3 timeout period suffix 3
MR Pullup Resistance 25 50 80 kΩ 3
Watchdog Timeout Period (first period after reset) tWD-L 35 54 72 s First watchdog period after reset timeout period 4
Watchdog Timeout Period (normal mode) tWD-S 1.12 1.68 2.24 s Normal mode 4
WDI Input Current IWDI -1 1 µA WDI = 0 or VCC1 4
RST/WDO Output Low Voltage VOL 0.3 V VCC1 or VCC2 ≥ +0.8V, ISINK = 1µA, output asserted 4
RST/WDO Output Low Voltage VOL 0.4 V VCC1 or VCC2 ≥ +4.5V, ISINK = 3.2mA, output asserted 4
VCC1, VCC2, RSTIN, MR, WDI to GND -0.3 6 V 2
RST, WDO to GND (open drain) -0.3 6 V Open drain 2
Input Current/Output Current (all pins) 20 mA 2
Operating Temperature Range -40 85 °C 2
Storage Temperature Range -65 150 °C 2
Junction Temperature 150 °C 2
Lead Temperature (soldering) 300 °C Soldering, 10s 2
Soldering Temperature (reflow) 260 °C Lead (Pb)-free packages 2
WDI Pulldown Resistor (if not driven externally) 100 kΩ Connect WDI to ground if not driven externally with a logic level input 7

CAD (KiCad official)

  • Symbol: MAX6730AUTSD3+T
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: max6730autsd3-t-etched.step / max6730autsd3-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max6730autsd3-t.step / max6730autsd3-t.glb are the bare package body.

Provenance

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

  • Datasheet: Maxim Integrated datasheet (14 pp, sha256 45944d696334e9d9, retrieved 2026-10-30, tier: manufacturer)
  • 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