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MAX4840EXT+T

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Maxim Integrated Monitors & Reset Circuits, SC70-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsmax4840ext+tfactory-2.0.0extractor-text
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Contents

README

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MAX4840EXT+T

Maxim Integrated · Monitors & Reset Circuits · SC70-6

MAX4840EXT+T from Maxim Integrated, in a SC70-6. 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 IN power_in Power-supply input and overvoltage sense input; bypass IN to GND with a 1µF capacitor or larger, with an input voltage range of 1.2V to 28.0V and an absolute maximum of 30V.
2 GND power_in Ground reference for the device.
3 FLAG output Active-low fault indication output that is asserted low during UVLO and OVLO conditions and is open-drain on the MAX4840; it is rated at -0.3V to +6V to GND and needs a pullup to the host logic I/O voltage.
4 GATE output Gate-drive output of the on-chip charge pump that drives the external N-channel MOSFET(s) high when UVLO < VIN < OVLO, with an absolute maximum of -0.3V to +12V to GND.
5 N.C. unconnected No connection; can be connected to GND.
6 EN input Active-low device enable input that turns off the external MOSFET when driven high; it is rated at -0.3V to +6V to GND with a VIH of 1.47V minimum and a VIL of 0.65V maximum.

Key specifications

Parameter Value
Manufacturer Maxim Integrated
Package SC70-6
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
Input Voltage Range VIN 1.2 28 V 2
Undervoltage Lockout Threshold UVLO 3 3.25 3.5 V VIN falling, MAX4838-MAX4841 2
Overvoltage Trip Level OVLO 5.5 5.8 6.1 V MAX4840/MAX4841 2
IN Supply Current IIN 140 240 uA No load, EN = GND or 5.5V, VIN = 5.4V (MAX4838-MAX4841) 2
IN to GND Absolute Maximum Voltage VIN -0.3 30 V 2
GATE to GND Absolute Maximum Voltage VGATE -0.3 12 V 2
EN, FLAG to GND Absolute Maximum Voltage VEN, VFLAG -0.3 6 V 2
Operating Temperature Range TA -40 85 °C 2
Junction Temperature TJ 150 °C 2
Storage Temperature Range TSTG -65 150 °C 2
Lead Temperature 300 °C soldering, 10s 2
Startup Delay tSTART 20 50 80 ms VIN > VUVLO, VGATE > 0.3V, Figure 1 3
FLAG Blanking Time tBLANK 20 50 80 ms VGATE = 0.3V, VFLAG = 2.4V, Figure 1 3

CAD (KiCad official)

  • Symbol: MAX4840EXT+T
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SC70-6 (KiCad packages3D, STEP)
  • 3D model files: max4840ext-t-etched.step / max4840ext-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max4840ext-t.step / max4840ext-t.glb are the bare package body.

Provenance

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

  • Datasheet: Maxim Integrated datasheet (10 pp, sha256 37efd066201f96a4, retrieved 2026-10-28, 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