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Analog Devices MAX20019ATBA/V+T — DC-DC Power Modules

MAX20019ATBA/V+T Automotive Buck Regulator, Dual 500mA

MPNMAX20019ATBA/V+T
End of Life

Maxim MAX20019ATBA/V+T, Series Automotive AEC-Q100, Step-Down, Buck, Fixed Output, Dual 500mA, 3.2MHz, 10-TDFN-EP (2x3), -40°C to 125°C.

$4.2Ref. price · indicative, final on quote
Packaging10-WFDFN Exposed Pad
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX20019ATBA/V+T specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeFixed
MountingSurface Mount
Voltage - input3.5V
Voltage - output (Min (Fixed))3.3V, 1.8V
Output current500mA, 500mA
Frequency3.2MHz
I/O channels2
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case10-WFDFN Exposed Pad
Output configurationPositive
Synchronous rectifierNo

Product details

Dual-output automotive buck for ECU rails

The MAX20019ATBA/V+T is a dual-channel step-down (buck) switching regulator. It delivers two fixed output voltages — 3.3 V on one channel and 1.8 V on the other — each rated for 500 mA continuous output current. The part operates from a 3.5 V to 17 V input bus.

Switching frequency and external component sizing

The 3.2 MHz switching frequency is fixed; there is no SYNC pin for external clock synchronisation. The part does not include internal synchronous rectification — an external Schottky diode per channel is required in the BOM.

Frequently asked questions

Does MAX20019ATBA/V+T have synchronous rectification?

No. Synchronous rectification is not implemented, so an external Schottky diode is required per output channel for the low-side rectifier function.

What is the output current of MAX20019ATBA/V+T?

Each of the two outputs is rated for 500 mA continuous current, providing a combined 1 A total output capability from the dual channels.