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Analog Devices LT3033EUDC#TRPBF — Power Management (PMIC / Gate Driver)

LT3033EUDC#TRPBF LDO Regulator, 3A Adjustable, 0.24V Dropout

MPNLT3033EUDC#TRPBF
End of Life

Analog Devices LT3033EUDC#TRPBF, positive adjustable LDO regulator, 3A output, 0.2V to 9.7V output range, 0.24V max dropout at 3A, PSRR 60dB~52dB (120Hz~1MHz), 20-WFQFN exposed pad, -40°C to 125°C.

$9.08Ref. price · indicative, final on quote
Packaging20-WFQFN Exposed Pad
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LT3033EUDC#TRPBF specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input10V
Voltage dropout0.24V @ 3A
Voltage - output9.7V
Voltage - output (Min (Fixed))0.2V
Output current3A
Current - supply60 mA
Current - quiescent3.5 mA
Operating temperature-40°C ~ 125°C
PSRR60dB ~ 52dB (120Hz ~ 1MHz)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-WFQFN Exposed Pad
Control featuresEnable, Power Good
Protection featuresOver Current, Over Temperature, Reverse Polarity
Number of regulators1
Output configurationPositive

Product details

3 A adjustable LDO — what the ratings mean for the rail

PSRR holds 60 dB at 120 Hz and stays above 52 dB through 1 MHz, so this part cleans up ripple from a switching preregulator well into the MHz band — useful for noise-sensitive analog front-end supplies or post-switcher filtering without a second LC stage.

Protection set and control interface

Built-in over-current, over-temperature, and reverse-polarity protection reduce the need for external clamp diodes or foldback circuits. The Enable and Power Good pins allow sequencing against an FPGA or MCU power-up sequence — Power Good asserts when the output is within regulation, so the load can be released from reset cleanly. Quiescent current runs 3.5 mA typical, supply current maxes at 60 mA. Not a micropower LDO, but the 3 A capability and protection set suit it for point-of-load regulation where the load current dominates the power budget anyway.

Frequently asked questions

Where can I buy LT3033EUDC#TRPBF and get current pricing?

Submit an RFQ to receive a firm price and availability commitment — no stock or lead-time number is published here, but the quote confirms both before any order is placed.

Does LT3033EUDC have reverse polarity protection?

Yes, reverse polarity protection is included in the protection feature set, along with over-current and over-temperature shutdown.

How does LT3033EUDC compare to the LT3042IMSE#TRPBF?

The LT3042 is a 200 mA LDO with higher PSRR (117 dB at 120 Hz) and a 20 V input maximum, but it delivers only 200 mA. The LT3033EUDC is the part to pick when the load needs 3 A and the PSRR requirement is 60 dB to 52 dB across 120 Hz to 1 MHz — a different load-current tier entirely.