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ROHM Semiconductor BA033CC0WFP-E2 — Analog & Data Acquisition

ROHM BA033CC0WFP-E2 LDO Regulator, 3.3V Fixed, 1A, TO-252-5

MPNBA033CC0WFP-E2
End of Life

ROHM BA033CC0WFP- linear regulator, fixed 3.3V output, 1A, 55dB PSRR at 120Hz, TO-252-5 surface-mount package, -40°C to 125°C operating range, active product status.

$1.75Ref. price · indicative, final on quote
ROHM Semiconductor BA033CC0WFP-E2 datasheet (PDF)
PackagingTO-252-5, DPak (4 Leads + Tab), TO-252AD
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BA033CC0WFP-E2 specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Voltage - input25V
Voltage - output (Min (Fixed))3.3V
Output current1A
Current - supply5 mA
Current - quiescent2.5 mA
Operating temperature-40°C ~ 125°C
PSRR55dB (120Hz)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-252-5, DPak (4 Leads + Tab), TO-252AD
Control featuresEnable
Protection featuresOver Current, Over Temperature, Over Voltage
Number of regulators1
Output configurationPositive

Product details

The BA033CC0WFP-E2: The BA033CC0WFP-: The ROHM BA033CC0WFP- is a single-output positive fixed LDO regulator delivering 3.3 V at up to 1 A. Its 55 dB PSRR at 120 Hz means it knocks down 50/60 Hz rectifier ripple by about 560×, so downstream analog or MCU rails see a clean DC bus. The 25 V input maximum gives headroom for unregulated supplies or 24 V industrial buses.

1 A continuous — load budget and thermal planning

Rated for 1 A output with a quiescent current of 2.5 mA (max 5 mA), the BA033CC0WFP- suits moderate-current rails. The TO-252-5 package has a tab for heatsinking. Enable pin lets you sequence the rail or shut it down for idle power savings.

Industrial temp range and protection suite

Built-in over-current, over-temperature, and over-voltage protection means it survives load dumps and shorted outputs without external crowbar circuitry — one fewer BOM line for protection.

Frequently asked questions

What does the 55 dB PSRR at 120 Hz mean for my design?

It attenuates 120 Hz ripple from a full-wave rectified supply by a factor of roughly 560. If your input rail has 100 mVpp ripple, the output sees about 180 µVpp — clean enough for most analog front-ends and MCU ADCs without an additional post-filter.

What are the alternatives to BA033CC0WFP-?

For a lower-current rail, the BU30TA2WNVX-TR (200 mA, 3.0 V fixed) shares the Enable pin but has a 5.5 V input limit and commercial temp range. For automotive-grade, the BD33HA3MEFJ-ME2 (300 mA, 3.3 V fixed) is AEC-Q100 qualified but also lower current and 105 °C max. Neither is a pin-for-pin replacement — the BA033CC0WFP-'s 1 A, 25 V input, and 125 °C range define its slot.