Representative package visual — not an exact-product photographProduct referenceVendor-delivered DigiKey product/package image

Exact MPN17 sourced attributes1 source document

Rohm Semiconductor · exact orderable part

BD4271EFJ-CE2

550MA OUTPUT LDO REGULATOR WITH

Voltage - Input (Max): 45V
Voltage - Output (Min/Fixed): 5V
Current - Output: 550mA
Voltage Dropout (Max): 0.5V @ 300mA
Current - Quiescent (Iq): 150 µA
PSRR: 60dB (120Hz)
Output Type: Fixed
Protection Features: Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features: Enable, Reset, Watchdog

Original manufacturerCommercial terms confirmed per lot

ManufacturerRohm Semiconductor

Package / case8-SOIC (0.154", 3.90mm Width) Exposed Pad

Mounting typeSurface Mount

PackingTape & Reel (TR); Cut Tape (CT); Digi-Reel®

Technical parameters

Technical specifications

17 normalized values · 1 validated source

BD4271EFJ-CE2 technical parameters
Parameter	Value
Control Features	Enable, Reset, Watchdog [1]
Current - Output	550mA [1]
Current - Quiescent (Iq)	150 µA [1]
Mfr	Rohm Semiconductor [1]
Mounting Type	Surface Mount [1]
Number of Regulators	1 [1]
Operating Temperature	-40°C~125°C(TA) [1]
Output Configuration	Positive [1]
Output Type	Fixed [1]
PSRR	60dB (120Hz) [1]
Product Status	Active [1]
Protection Features	Over Current, Over Temperature, Under Voltage Lockout (UVLO) [1]
Series	Automotive, AEC-Q100 [1]
Voltage - Input (Max)	45V [1]
Voltage - Output (Min/Fixed)	5V [1]
Voltage Dropout (Max)	0.5V @ 300mA [1]
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad [1]

Catalog relationships

This page describes one orderable part. A family page helps select suffixes but never carries assumed stock or a price.

Related exact parts

Browse exact MPNs and compare their specifications. These links do not imply compatibility or interchangeability.