myMectronic
myMectronic

A Premier B2B Part Search

ROHM BD4271HFPCTR Automotive Voltage Regulator

BD4271HFP-C is an automotive-grade 550mA output LDO regulator featuring watchdog timer, reset delay, and over-voltage protection. Designed for vehicle systems like ECUs, navigation, and body control, it operates from -40°C to +150°C junction temperature and supports input voltages up to 45V. It features low quiescent current of 75nA, low drop-out voltage, and programmable reset and watchdog timing via external capacitor. The device includes thermal shutdown, over-current protection, and is available in HRP7 and TO263-7 packages for reliable automotive operation.

Authorized Distributors
Source:Newark
Part No:BD4271HFP-CTR
Stock:29
Inv Date:06-09-2026
Price: Unit price: $2.73
Buy/RFQ:
Source:DigiKey
Part No:BD4271HFP-CTR
Stock:1695
Inv Date:06-09-2026
Price: Unit price: $2.73
Buy/RFQ:
Part No:BD4271HFP-CTR
Stock:1164
Inv Date:06-10-2026
Price: Unit price: $2.73
Buy/RFQ:

ROHM BD4271HFPCTR Automotive Voltage Regulator Specifications:

  • Output Load Current: 550 mA
  • Operating Input Voltage: -0.3V to 45V
  • Output Voltage: Typ 4.65V, +2%
  • Reset Detection Voltage: 4.65V ±2%
  • Reset Delay Time: 8-16 ms (programmed via external capacitor)
  • Watchdog Timer: 30-66 ms (programmable)
  • Quiescent Current: Typ 75 nA
  • Dropout Voltage: 0.2-0.5 V
  • Operating Junction Temperature Range: -40°C to +150°C
  • Thermal Shutdown: Yes, at approximately 175°C
  • Over Current Protection: Up to 550 mA
  • Package Options: HRP7, TO263-7
  • Wide Operating Temperature: -40°C to +150°C
  • Supports ceramic capacitors at output and input for stability
  • Built-in UVLO, TSD, OCP features for automotive safety
  • Designed to perform reliably in harsh vehicle environments

Buy the ROHM Series BD4271 LDO Regulator: BD4271HFP-C

Order the ROHM BD4271HFP-C online today and ensure your vehicle electronics operate with high stability and safety. This 550mA automotive-grade LDO includes watchdog, reset delay, thermal shutdown, and over-current protection, making it ideal for ECUs, navigation, and body control systems. Its low quiescent current, wide input voltage range, and programmable timing via external capacitor provide flexible integration. Trusted for harsh vehicle environments, it guarantees reliable operation with ceramic capacitors, multiple package options, and comprehensive safety features. Get yours today and enhance your automotive design with proven quality and performance.

Buy ROHM BD4271HFP-C now and experience unmatched reliability and performance in automotive systems with integrated watchdog timer and protection features.

Frequently Asked Questions

Where can I buy ROHM BD4271HFPCTR?

You can click on the BUY or RFQ button to purchase BD4271HFPCTR from an authorized ROHM distributor.

How do I troubleshoot issues or seek technical support for part BD4271HFPCTR?

You can download the BD4271HFPCTR datasheet or visit the ROHM website for support.

Who is the manufacturer of BD4271HFPCTR?

ROHM

ROHM Part List

Browse and search other ROHM parts, locate datasheets and stock

Sponsored by