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Analog Devices MAX8546EUB+T — Discrete Semiconductors

MAX8546EUB+T Buck Controller, 300kHz, 10-uMAX/uSOP

MPNMAX8546EUB+T
End of Life

Analog Devices MAX8546EUB+T step-down buck controller, 2.7V–28V input, 300kHz switching, synchronous rectifier, 10-uMAX/uSOP package, -40°C to 85°C, Tape & Reel.

$4.4Ref. price · indicative, final on quote
Packaging10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX8546EUB+T specifications
ParameterValue
Output typeTransistor Driver
MountingSurface Mount
Voltage - supply (Vcc (Vdd))2.7V ~ 28V
Frequency300kHz
I/O channels1
Output phases1
Duty cycle86%
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Clock syncNo
Case10-TFSOP, 10-MSOP (0.118\", 3.00mm Width)
Control featuresEnable
Output configurationPositive
Synchronous rectifierYes

Product details

Step-down controller with 2.7 V to 28 V input

The MAX8546EUB+T is a voltage-mode buck controller that drives an external N-channel MOSFET pair — one high-side and one low-side — in a synchronous rectifier topology. Switching at a fixed 300 kHz, the controller lets the designer size the output inductor and filter capacitors to balance ripple against board area. The 86 % maximum duty cycle supports moderate step-down ratios at low input voltages.

Package and temperature grade for industrial environments

Housed in a 10-lead TFSOP/MSOP (3.00 mm width) with a 0.50 mm pitch, the 10-uMAX/uSOP footprint suits space-constrained power stages on multi-layer boards. Surface-mount assembly with Tape & Reel or Cut Tape packaging — the reel quantity supports production runs; Cut Tape works for prototypes or low-volume builds.

Analog Devices lists the MAX8546EUB+T as Active and ROHS3 compliant. The single output, positive configuration with an Enable pin gives the system designer a clean on/off control without external sequencing logic.