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Analog Devices MAX15046AAEE+ — DC-DC Power Modules

MAX15046AAEE+ Buck Controller, 4.5V-40V, 100kHz-1MHz

MPNMAX15046AAEE+
End of Life

Analog Devices MAX15046AAEE+ step-down buck controller, 4.5V to 40V supply, 100kHz to 1MHz switching frequency, synchronous rectifier, 87.5% max duty cycle, -40°C to 125°C, 16-QSOP package.

$4.58Ref. price · indicative, final on quote
Packaging16-SSOP (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX15046AAEE+ specifications
ParameterValue
Output typeTransistor Driver
MountingSurface Mount
Voltage - supply (Vcc (Vdd))4.5V ~ 40V
Frequency - switching100kHz ~ 1MHz
I/O channels1
Output phases1
Duty cycle87.5%
Operating temperature-40°C ~ 125°C (TJ)
PackageTube
FunctionStep-Down
TopologyBuck
Clock syncNo
Case16-SSOP (0.154\", 3.90mm Width)
Control featuresCurrent Limit, Enable, Frequency Control, Power Good
Output configurationPositive
Synchronous rectifierYes

Product details

Buck controller for 4.5V to 40V rails

Switching frequency is programmable from 100kHz to 1MHz via a single resistor, letting the designer trade efficiency against inductor and capacitor size. The synchronous rectifier driver improves efficiency at higher output currents compared to a diode-based freewheel path. Control features include current limiting, an enable pin for sequencing, frequency control, and a power-good flag for output-rail monitoring. The 87.5% maximum duty cycle sets the practical step-down ratio.

Frequently asked questions

What applications is MAX15046AAEE+ suitable for?

As a wide-input buck controller with -40°C to 125°C rating, it suits industrial power supplies, automotive-grade point-of-load regulators, intermediate bus conversion, and any environment requiring a step-down regulator from a 4.5V to 40V source.