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ROHM Semiconductor BD733L2EFJ-CE2 — Power Management (PMIC / Gate Driver)

ROHM BD733L2EFJ-CE2 LDO, 3.3V 200mA, AEC-Q100, 63dB PSRR

MPNBD733L2EFJ-CE2
End of Life

ROHM Semiconductor BD733L2EFJ-CE2 automotive LDO, fixed 3.3V output, 200mA, 45V input max, 63dB PSRR at 120Hz, AEC-Q100, 8-SOIC exposed pad, -40°C to 125°C.

$2.28Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width) Exposed Pad
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BD733L2EFJ-CE2 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeFixed
MountingSurface Mount
Voltage - input45V
Voltage dropout1V @ 200mA
Voltage - output (Min (Fixed))3.3V
Output current200mA
Current - supply15 µA
Current - quiescent6 µA
Operating temperature-40°C ~ 125°C
PSRR63dB (120Hz)
PackageTape & Reel (TR); Cut Tape (CT)
Case8-SOIC (0.154\", 3.90mm Width) Exposed Pad
Protection featuresOver Current, Over Temperature
Number of regulators1
Output configurationPositive

Product details

The ROHM BD733L2EFJ-CE2 is a fixed 3.3 V output LDO rated for 200 mA continuous output current, housed in an 8-SOIC exposed-pad package.

Input range, dropout, and quiescent current

The 45 V maximum input voltage provides margin above the nominal 12 V or 24 V automotive bus — a 60 V load-dump transient on a 12 V system stays within the absolute-max rating without an external clamp. Quiescent current is 6 µA typical, with a maximum supply current of 15 µA. This low standing current suits always-powered modules such as a body-controller CAN transceiver or a keyless-entry receiver that must draw microamps in sleep mode.

Protection and package integration

Over-current and over-temperature protection are integrated — no external supervisory IC or reset generator is needed for the basic fault response. The 8-SOIC exposed-pad package (8-HTSOP-J) requires a thermal-land pattern on the PCB to conduct heat from the die to the board; the datasheet's recommended copper area under the pad sets the junction-to-ambient thermal resistance.

Frequently asked questions

What is BD733L2EFJ-CE2's PSRR at 120 Hz?

The BD733L2EFJ-CE2 provides 63 dB of power-supply rejection at 120 Hz, which attenuates alternator ripple or switching-regulator noise by a factor of roughly 1400, keeping the 3.3 V output clean for sensitive loads.

What compliance documentation does ROHM provide for BD733L2EFJ-CE2?

The BD733L2EFJ-CE2 is ROHS3 compliant. ROHM provides a certificate of compliance and material declaration upon request through the supply chain.