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MAX5033DASA+

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Maxim Integrated DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsmax5033dasa+factory-2.0.0extractor-text

Verified MAX5033DASA+

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: MAX5033DASA+ · SOIC-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 17-page datasheet
  • ✓distributor: lcsc C143508, digikey MAX5033DASA+-ND, mouser 700-MAX5033DASA
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-yhjo9asn/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ max5033dasa.kicad_sym✓ max5033dasa.kicad_mod✓ max5033dasa.step
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Ray Publish 0.1.0 eba4ab8 9d ago

MAX5033DASA+

Maxim Integrated · DC-DC Converters · SOIC-8

MAX5033DASA+ from Maxim Integrated, in a SOIC-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 BST passive Boost capacitor connection; connect a 0.1μF ceramic capacitor from BST to LX to provide high-side gate drive.
2 VD power_out Internal regulator output; bypass VD to GND with a 0.1μF ceramic capacitor.
3 SGND power_in Internal connection; SGND must be connected to GND.
4 FB input Output sense feedback input; for MAX5033D (adjustable) use an external resistive divider to set VOUT, with VFB regulating set point of 1.22V.
5 ON/OFF input Shutdown control input; pull low to shut down, drive high for normal operation (rising threshold 1.69V typ, 100mV hysteresis).
6 GND power_in Ground.
7 VIN power_in Input voltage (7.5V to 76V operating range); bypass VIN to GND with a low-ESR capacitor as close to the device as possible.
8 LX output Source connection of the internal high-side switch.

Key specifications

Parameter Value
Manufacturer Maxim Integrated
Package SOIC-8
Category Power Management ICs
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
Input Voltage Range (MAX5033D) VIN 7.5 76 V MAX5033D 3
Feedback Voltage VFB 1.192 1.221 1.25 V VIN = 7.5V to 76V, MAX5033D 4
Quiescent Supply Current IQ 270 440 µA VFB = 1.3V, MAX5033D 4
Shutdown Current ISHDN 10 45 µA VON/OFF = 0V, VIN = 7.5V to 76V 4
Peak Switch Current Limit ILIM 0.95 1.5 2.1 A (Note 1) 4
Switch Leakage Current IOL 1 µA VIN = 76V, VON/OFF = 0V, VLX = 0V 4
Switch On-Resistance RDS(ON) 0.4 0.8 Ω ISWITCH = 500mA 4
PFM Threshold IPFM 35 65 110 mA Minimum switch current in any cycle 4
FB Input Bias Current IB -150 0.01 150 nA MAX5033D 4
ON/OFF Input-Voltage Threshold VON/OFF 1.5 1.69 1.85 V Rising trip point 4
ON/OFF Input Current ION/OFF 10 150 nA VON/OFF = 0V to VIN 4
ON/OFF Operating Voltage Range VON/OFF 76 V 4
Oscillator Frequency fOSC 105 125 137 kHz 4
Regulator Output Voltage VD 6.5 7.8 9 V VIN = 8.5V to 76V, IL = 0mA 4
Undervoltage Lockout UVLO 5.2 V 3
Efficiency η 90 % VIN = 12V, VOUT = 5V, ILOAD = 500mA, MAX5033D 4
ON/OFF Input-Voltage Hysteresis VHYST 100 mV 4
Maximum Duty Cycle DMAX 95 % MAX5033D 4
Dropout Voltage (VD regulator) 2 V 7.5V ≤ VIN ≤ 8.5V, IL = 1mA 4
VD Load Regulation ΔVD/ΔIVD 150 Ω 0 to 5mA 4
Thermal-Shutdown Junction Temperature TSH 160 °C 4
Thermal-Shutdown Hysteresis THYST 20 °C 4
Thermal Resistance Junction to Ambient θJA 170 °C/W SO package (JEDEC 51) 4
VIN VIN -0.3 80 V Referenced to GND 2
SGND SGND -0.3 0.3 V 2
LX LX -0.8 V to (VIN + 0.3V) 2
BST BST -0.3 V to (VIN + 10V) 2
BST (transient < 100ns) BST -0.3 V to (VIN + 15V) 2
BST to LX -0.3 10 V 2
BST to LX (transient < 100ns) -0.3 15 V 2
ON/OFF -0.3 80 V 2
VD VD -0.3 12 V 2
FB (MAX5033D) FB -0.3 12 V MAX5033D 2
Operating Temperature Range -40 125 °C MAX5033_A_ _ 2
Storage Temperature Range -65 150 °C 2
Junction Temperature TJ 150 °C 2
Lead Temperature (soldering, 10s) 300 °C 2
Soldering Temperature (reflow), lead-free 260 °C SO, PDIP Lead(Pb)-free 2

CAD (KiCad official)

  • Symbol: MAX5033DASA+
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: max5033dasa-etched.step / max5033dasa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max5033dasa.step / max5033dasa.glb are the bare package body.

Provenance

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

  • Datasheet: Maxim Integrated datasheet (17 pp, sha256 8bdd1152d8ab72ab, retrieved 2026-10-30, 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