Product Key Points
Automotive LDO regulator BD4xxMx series /BDxxC0A seriesAccomplishments in Power Saving and Miniaturization
2016.09.16
The BD4xxMx series and BDxxC0A series are newly developed LDO regulators for use in vehicles. In addition to being highly versatile, a full lineup of 43 models provides a wide variety of output voltages, packages and other parameters, for adoption in diverse automotive applications. These device series conform to AEC-Q100, the de facto industry standard for automotive ICs.
For automotive equipment, power saving and miniaturization are important challenges. Important points for LDO regulators are how much self-current consumption can be reduced, and to what extent miniaturized external components can be used.
No-load current consumption half that of conventional products, current consumption when supplying a load current reduced to 1/30 or less
The BD4xxMx series has a no-load current consumption reduced to half or less that of conventional products. As a result, power consumption during standby is decreased, contributing to alleviate depletion of car batteries. And both series provide current consumption during load current supply that is 1/30 that of conventional items. As indicated by the graphs below, this means enormous improvement over the characteristics of conventional devices, for which current consumption increases in proportion to the load current.
The ability to use ceramic capacitors for output means space savings and longer lifetimes
The BDxxC0A series requires small capacitances of 1 to 10 μF to regulate output, and moreover ceramic capacitors can be used. In general, electrolytic capacitors with an appropriate ESR (equivalent series resistance) are necessary in order not to induce oscillation, and the form factor of such capacitors must be accommodated. The ability to use ceramic capacitors means broadened options for surface mounting for this level of small capacitances, and mounting area can be decreased. Moreover, ceramic capacitors have a longer lifetime than electrolytic capacitors.
List of articles related to the「Accomplishments in Power Saving and Miniaturization」
Download Technical Documents
Downloadable materials, including lecture materials from ROHM-sponsored seminars and a selection guide for DC-DC converters, are now available.
Product Key Points
-
Thermal Analysis Functions Added to ROHM Solution Simulator: Circuit-Scale Electrical-Thermal Coupled Analysis Tools Provided Gratis–Thermal Issues Analyzable in Advance through Simulations
-
RBQ Series: 100 V Products Added to Answer Demands for Higher Withstand Voltage Ratings; Stable Operation Even in High-Temperature Environments
-
RBR Series: Improved Efficiency with Lower Losses–Unchanged Performance in One-Size-Smaller Packages
-
RGWxx65C Series of IGBTs with Internal SiC Schottky Barrier Diodes: Switching Losses Reduced by 67% in Examples of Onboard Chargers Using Hybrid IGBTs with Internal SiC SBDs Compared with FRD+IGBT Devices
- Focus on Advantages—Ease of Design of High-Efficiency AC-DC Converters Using SiC MOSFETs： Small Surface-Mount Package Supporting Automated Mounting
- 600 V IGBT IPM: BM6437x Series Simultaneously Achieve Industry-Leading Low Noise and Low Losses for Inverters Used in Home Appliances, Small Industrial Equipment–Features–
-
200 V Schottky Barrier Diodes：RBxx8BM200 / RBxx8NS200 : Replaces FRD in 200 V Applications, for Improved Efficiency, Space Savings
-
Successful Development of “Third Generation In-wheel Motor with Wireless Power Transfer During Travel” : Ultra-Compact SiC Module Contributes to Realization of EV with No Charging Worries
-
Development of the BD71850MWV Power Management IC for the NXP i.MX 8M Nano Family : A 12-Output PMIC for i.MX 8M Nano Family
-
Newly Developed Compact GMR50 Current Detection Chip Resistor (Shunt Resistor) with High Rated Power : Industry-Highest 4W Rated Power from 5.0×2.5 mm Device
-
Free Web-Based Simulation Tool “ROHM Solution Simulator” : Power Devices and Driver ICs Verified Simultaneously, for Dramatic Reduction of Development Efforts and Time
-
Industry’s First Single-Chip LED Driver BD18336NUF-M Enables Safe Lighting Under Low Onboard Battery Conditions : Miniaturization of the Latest Socket-type LED Lamps for DRLs, Position Lamps
-
Nano Cap™ Technology Enabling Stable Control with Nano-order Output Capacitances : Realization of a Linear Regulator that Effectively Eliminates Output Capacitors
-
Development of 4th-Generation SiC MOSFET, Achieving Industry’s Lowest On-Resistance : Support for xEV/EV Main Inverters, Higher Battery Voltages
- SCT2H12NZ：1700 V High Voltage SiC-MOSFET : Delivering High Voltage and Low Loss Sought in Auxiliary Power Supplies for Industrial Equipment
- “Full SiC” Power Modules Using ROHM’s Own SiC-MOSFET and SiC-SBD : Smaller Equipment Sizes through Reduced Switching Losses and Higher-Frequency Operation
- CMOS LDO Regulator with World’s Smallest Package for Automotive Use : 55% Smaller Footprint, Yet Supports AEC-Q100
- 600 V Second-Generation Super-Junction MOSFET : EN Series:Improved Noise Performance, While Maintaining Low ON-Resistance, Fast Switching Speed
- 3rd Generation SiC Schottky Barrier Diode：SCS3 Series : Enhanced the Surge Current Rating while Maintaining Low Losses, for PFC in High-End Equipment
- BD9227F：Step-down DC-DC Converter to Drive DC Fan Motor : Integrated Discrete Components for Higher Precision, Efficiency and Smaller Size
- Power Supply ICs on Small-lot 250-piece Tape & Reel Optimized for Industrial Equipment : 3 Series of LDO Regulators Cover a Wide Range of Applications
- Full-SiC Power Modules：Continually Expanding Lineup : Engineering Innovations to Handle Larger Currents
- The New R60xxMNx Series Lineup of PrestoMOSTM with Industry-Fastest trr : Cutting the ON-resistance and Qg to Lower Power Consumption Even Further
- BD9V100MUF-C：A DC-DC Converter with the Industry’s Highest Step-Down Ratio : The Advantage of a 24:1 Step-Down Ratio at 2 MHz
- BU33UV7NUX：Optimal Boost DC-DC Converter for Dry Cell Applications : Making Dry Cells Last 1.3 Longer
- BD70522GUL：DC-DC Converter Attaining Industry-Lowest 180 nA Current Consumption : Outstanding Functions Installed in an Ultra-Small Package
- AC-DC Converter IC with Internal Power MOSFET : Clearing the New Energy Star v. 6.0 Standard
-
RGTV/RGW Series of 650 V IGBTs：Combining Industry-Leading Efficiency and Soft Switching : Low Conduction Losses, Fast Switching = High Efficiency; Greatly Reduced Overshoot = Fewer Suppression Components
- BD9S Series：Ultra-small Step-down DC-DC Converters for Automotive, ADAS Applications with Power-good Pin : Wettable-Flank QFN Package Adopted in 2A/3A/4A Versions with SLLM™ Control
-
BSM250D17P2E004： High-Reliability 1700 V Full-SiC Power Module: The Industry’s Highest Level of Reliability in High-Temperature, High-Humidity Environments
-
SiC MOSFETs Conforming to the AEC-Q101 Automotive Reliability Standard: 10 SiC MOSFET Models for Automotive Use Added, Completing the Industry’s Most Extensive Lineup
-
Int’l Automotive Electronics Technology Expo (CAR-ELE JAPAN) 2019 : DC-DC Converter Solutions that Meet CISPR25 Class 5 Standards
-
600V SJ-MOSFET：R60xxJNx Series : PrestoMOS™ Boosts Design Freedom While Affording Industry-Fastest Reverse Recovery Time
-
World’s First AC-DC Converter ICs with 1700V Internal SiC MOSFET : Easily Attain Dramatic Compactness, Energy Savings, Efficiency in Power Supplies for AC 400 V Industrial Equipment
-
RGS Series：1200 V IGBTs Conforming to AEC-Q101 for Automotive Use : Increasing Demand for Automotive IGBTs with Lower Conduction Losses, Higher Rated Voltages
-
BD83070GWL Buck-Boost DC-DC Converter Achieves Amazing Power Savings Performance : High Efficiencies at All Load Levels Maximized Operating Times of Battery-Driven Equipment
-
SiC MOSFETs Adopting 4-pin Packages：SCT3xxx xR Series : Switching Losses Cut 35% Through Adoption of 4-Pin Packages
- Silicon Diodes Continue to Evolve, Driven by Applications | Si Fast-Recovery Diodes : Emphasis on Efficiency and Rated Voltage/Leakage Current
- The Key to Reduced Loss and Miniaturization in Power Applications : SiC-SBDs Offer Lowest Losses among Power Diodes
- BD9G341AEFJ：DC-DC Converter Achieves Industry-Leading 80 V Rated Voltage, High Efficiency : 1-Channel Step-Down DC-DC Converter Incorporates High-voltage, Low On-resistance MOSFET
- Automotive LDO regulator BD4xxMx series /BDxxC0A series : Why the LDO Series can be Specified as “Automotive”
- Switching Regulator Controllers Compatible with FPGA Power Supply Requirements : Adopted into Xilinx 7 Series FPGA Power Supply Module
- New lineup of LDO linear regulators, covering all 91 products! : Required Elements that Make Up a Standard Part
-
BD905xx-C series synchronous rectifier converter for automotive secondary power supplies : Increasing Requirements Not Met by LDO
- DC-DC converter family with an extensive lineup enhancing convenience : “Best Fit for Each Application” is Mandatory
-
Lineup of Over 220 Motor Driver ICs : Brushed DC Motor Driver ICs Offer Diverse Functions, Highly Efficient Driving
- Automotive Motor Driver
- Non-Isolated Gate Drivers and Power Devices
- Remarkable Quietness through Intricate Control Functions and a Novel Control Method Single-Phase Brushless DC Motor Driver IC
- 3-Phase Brushless DC Motor Driver IC Features Low Noise and Low Vibration through Sinusoidal Driving
- Quietness, Reliability through Control Optimization Stepping Motor Driver IC
- In-Series Pin Compatibility, High Efficiency Through Advance Angle Control Functions 250 V/600 V High-Voltage 3-Phase Brushless DC Motor Driver ICs
- An Extensive Lineup of Camera Lens Driver ICs to Meet All Needs
-
Almost No Measurement Equipment Needed for Stepping Motor Application Development