Skip to main content
MC33063ADG4

MC33063ADG4 DC-DC Converter, 1.5 A Switch, 100 kHz, SOIC-8

MPNMC33063ADG4
End of Life

Texas Instruments MC33063ADG4, DC-DC Switching Regulator, Step-Up/Step-Down, Buck/Boost, Adjustable Output, 1.5 A Switch, 100 kHz, 3 V to 40 V Input, 8-SOIC, Tube.

$3.6648Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MC33063ADG4 specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input40V
Voltage - output40V (Switch)
Voltage - output (Min (Fixed))1.25V
Output current1.5A (Switch)
Frequency - switching100kHz
I/O channels1
Operating temperature-40°C~85°C(TA)
PackageTube
FunctionStep-Up, Step-Down
TopologyBuck, Boost
Case8-SOIC (0.154\", 3.90mm Width)
Output configurationPositive or Negative
Synchronous rectifierNo

Product details

1.5 A switch, 100 kHz — the workhorse DC-DC for moderate loads

Its integrated 1.5 A switch transistor and 100 kHz oscillator make it a direct fit for non-isolated supplies in the 1 W to 10 W range — think industrial sensor rails, automotive bias supplies, and auxiliary POL converters on a mixed-voltage board.

3 V to 40 V input — one rail, many output options

The output is adjustable from a 1.25 V reference up to 40 V (switch rating), and the configuration can be positive or negative — so a single BOM line covers +5 V, +12 V, or a -5 V rail from the same 24 V supply.

SOIC-8 package — board area and thermal reality

The 1.5 A switch current is the peak limit through the internal transistor; at full load the package dissipation sets the practical output current, especially in a buck converter where the duty cycle is high.

Frequently asked questions

What is the function of MC33063ADG4?

It is a DC-DC switching regulator capable of step-up (boost), step-down (buck), and inverting topologies, with an adjustable output and a single 1.5 A internal switch.