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Analog Devices MAX8840ELT18+T — Power Management (PMIC / Gate Driver)

MAX8840ELT18+T Linear Regulator, 1.8V Fixed Output, 150mA

MPNMAX8840ELT18+T
End of Life

Analog Devices MAX8840ELT18+T, linear voltage regulator, fixed 1.8V output, 150mA output current, 6-WFDFN package, surface mount, -40°C to 85°C operating temperature, 90µA quiescent current, 78dB ~ 54dB PSRR (1kHz ~ 100kHz).

$1.7Ref. price · indicative, final on quote
Packaging6-WFDFN
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX8840ELT18+T specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input6V
Voltage - output (Min (Fixed))1.8V
Output current150mA
Current - quiescent90 µA
Operating temperature-40°C ~ 85°C (TA)
PSRR78dB ~ 54dB (1kHz ~ 100kHz)
PackageTape & Reel (TR); Cut Tape (CT)
Case6-WFDFN
Control featuresEnable
Protection featuresOver Current, Over Temperature
Number of regulators1
Output configurationPositive

Product details

What the MAX8840ELT18+T delivers

The MAX8840ELT18+T is a fixed-output linear regulator from Analog Devices that holds a 1.8V rail at up to 150mA. It comes in a 6-uDFN package (1.5x1 mm footprint) — small enough for space-constrained PCBs in portable or embedded designs.

PSRR — where it cleans up and where it doesn't

Power-supply rejection ratio is 78 dB at 1 kHz, dropping to 54 dB at 100 kHz. That means this LDO knocks down low-frequency ripple from a switching pre-regulator or a noisy digital rail, but above 100 kHz the attenuation fades. If your load is a sensitive RF front-end or a precision analog chain running at several megahertz, you'll want to pair this with a post-filter or pick a higher-PSRR part. For audio-frequency noise on a 1.8V sensor supply, it's fine.

Frequently asked questions

What is the exact output voltage of MAX8840ELT18+T?

Designers need to confirm 1.8V fixed output for powering specific circuits.

What is the package type and pinout of MAX8840ELT18+T?

Engineers need to ensure footprint compatibility and correct connections.

Is MAX8840ELT18+T obsolete or active?

Buyers need lifecycle status to avoid obsolescence risk in production.

Where can I buy MAX8840ELT18+T and what is the current price?

Sourcing buyers need to find stock and compare pricing for procurement.

What is the dropout voltage of MAX8840ELT18+T at 150mA?

Determines if the LDO can maintain regulation with low headroom.

What is a direct replacement or equivalent for MAX8840ELT18+T?

For second-sourcing or if part is unavailable, cross-reference is needed.