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Analog Devices MAX5033AASA+ — DC-DC Power Modules

MAX5033AASA+ Buck Regulator, 76V Input, 500mA, 8-SOIC

MPNMAX5033AASA+
End of Life

Analog Devices MAX5033AASA+, step-down (buck) switching regulator, fixed 3.3V output, 500mA output current, 7.5V to 76V input range, 125kHz switching frequency, 8-SOIC package, -40°C to 125°C junction temperature.

$4.2Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX5033AASA+ specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input7.5V
Voltage - output (Min (Fixed))3.3V
Output current500mA
Frequency125kHz
I/O channels1
Operating temperature-40°C ~ 125°C (TJ)
PackageTube
FunctionStep-Down
TopologyBuck
Case8-SOIC (0.154\", 3.90mm Width)
Output configurationPositive
Synchronous rectifierNo

Product details

The MAX5033AASA+ is a fixed 3.3 V output, non-synchronous step-down (buck) regulator from Analog Devices, rated for a 7.5 V to 76 V input range and delivering up to 500 mA. The 76 V maximum input covers 48 V telecom rails, 24 V industrial buses, and 12 V automotive systems with healthy margin for transients. Switching at 125 kHz, it uses a larger inductor and output capacitor than a higher-frequency part — expect a 47 µH to 100 µH inductor and 100 µF to 220 µF electrolytic on the output for typical designs. The 500 mA output suits point-of-load rails for sensors, MCUs, or auxiliary supplies, not high-current core rails.

Temperature grade and package — industrial and automotive ready

The part ships in Tube form; verify tape-and-reel availability if your pick-and-place line requires it.

For new designs or production BOMs, this part can be committed without near-term obsolescence contingency.

Frequently asked questions

What is the switching frequency of MAX5033AASA+?

The switching frequency is 125 kHz. This is a low switching frequency, so expect larger inductor and output capacitor values compared to higher-frequency regulators — typically a 47 µH to 100 µH inductor and 100 µF to 220 µF electrolytic capacitor.