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Analog Devices MAX8569BETT+T — DC-DC Power Modules

MAX8569BETT+T Boost Converter, 3.3V Fixed Output

MPNMAX8569BETT+T
End of Life

Analog Devices MAX8569BETT+T, Step-Up Boost Regulator, Fixed 3.3V Output, 750mA Switch, 1.5V to 5.5V Input, Synchronous Rectifier, 6-TDFN-EP (3x3 mm), -40°C to +85°C.

$4.31Ref. price · indicative, final on quote
Packaging6-WDFN Exposed Pad
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX8569BETT+T specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input5.5V
Voltage - output (Min (Fixed))3.3V
Output current750mA (Switch)
I/O channels1
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Up
TopologyBoost
Case6-WDFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

The MAX8569BETT+T is a synchronous step-up (boost) regulator from Analog Devices that delivers a fixed 3.3V output from input voltages as low as 1.5V and up to 5.5V. It integrates a 750mA switch and synchronous rectifier, which improves efficiency over a diode-based boost topology — particularly at higher output currents. The part is housed in a 6-TDFN exposed-pad package (3x3 mm) and operates over -40°C to +85°C, making it suitable for portable, battery-powered, and industrial equipment where a regulated 3.3V rail must be generated from a single-cell alkaline, Li-ion, or multi-cell battery stack.

750mA switch and synchronous rectification

The 750mA switch rating is the peak current the internal power FET can handle — it is not the continuous output current. For a 3.3V output from a 1.8V input, expect around 300–400 mA continuous output before the switch current limit is reached, depending on inductor value and efficiency.

Active lifecycle, ROHS3, and sourcing posture

Frequently asked questions

Does MAX8569BETT+T require an external inductor?

Yes, like all boost converters, it requires an external inductor. The datasheet application circuit typically specifies a 4.7 µH to 10 µH shielded inductor rated for the peak switch current (750mA). The synchronous rectifier eliminates the need for an external Schottky diode.

Is MAX8569BETT+T compatible with 1.8V input?

Yes. The minimum input voltage is 1.5V, so a 1.8V rail is well within range. The part will boost 1.8V to a regulated 3.3V output. At this input voltage, the available output current will be lower than at higher input voltages due to the switch current limit — expect roughly 300–400 mA continuous output.

Is MAX8569BETT+T RoHS compliant?

Yes, it is ROHS3 compliant, meaning it meets the EU RoHS directive with no exemptions for restricted substances.