BD9A100MUV
BD9A100MUV
2.7V～5.5V輸入1A MOSFET內建 1ch 同步整流 降壓DC/DC轉換器
BD9A100MUV為內建低導通電阻的功率MOSFET同步整流降壓型開關穩壓器。最大可輸出1A的電流。可SLLM™控制，輕負載狀態的效率特性良好，最適合減輕待機功率的裝置。振盪頻率1MHz且高速，可使用在小型電感。本產品為電流模式控制DC/DC轉換器，具備高速暫態響應性能、可輕易設定相位補償。
Data Sheet
* 本產品是標準級的產品。
本產品不建議使用的車載設備。
本產品不建議使用的車載設備。
Product Detail
規格:
Grade
Standard
ch
1
Integrated FET / Controller
Integrated FET
Topology
Buck
Synchronous / Nonsynchronous
Synchronous
Vin1(Min.)[V]
2.7
Vin1(Max.)[V]
5.5
Vout1(Min.)[V]
0.8
Vout1(Max.)[V]
3.85
Iout1(Max.)[A]
1.0
SW frequency(Max.)[MHz]
1.0
Light Load mode
Yes
EN
Yes
PGOOD
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
3x3 (t=1)
功能:
·Synchronous 1 ch DC/DC converter·SLLM™ (Simple Light Load Mode) control
·Over Current Protection
·Short Circuit Protection
·Thermal Shutdown protection
·Under Voltage lockout protection
·Adjustable soft start function
·Power Good output
·VQFN016V3030 package (backside heat
dissipation)
Evaluation
Board
-
- Evaluation Board
- BD9A100MUV-EVK-001
This evaluation board has been developed for ROHM’s synchronous buck DC/DC converter customers evaluating BD9A100MUV. While accepting a power supply of 2.7-5.5V, an output of 1.8V can be produced. The IC has internal 60mΩ high-side N-channel MOSFET and 60mΩ low-side N-channel MOSFET and a synchronization frequency is of 1MHz.
Design Resources
Documents
Data Sheet
User's Guide
- Evaluation Board User's Guide
- Evaluation Board Data
Application Note
Reference Design
Technical Articles
Schematic Design & Verification
- Buck DC/DC Converter Recommended Inductor List
- Calculation of Power Dissipation in Switching Circuit
- Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
- Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
- Method for Monitoring Switching Waveform
- Phase Compensation Design for Current Mode Buck Converter
- Bootstrap Circuit in the Buck Converter
- Method for Determining Constants of Peripheral Parts of Buck DC/DC Converter
- Power Supply Sequence Circuit with General Purpose Power Supply IC
- Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
- PCB Layout Techniques of Buck Converter
- Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
- Usage of SPICE Macromodel for DC/DC
- Snubber Circuit for Buck Converter IC
- Efficiency of Buck Converter
- Calculation of Power Loss (Synchronous)
- Inductor Calculation for Buck converter IC
- Considerations for Power Inductors Used for Buck Converters
- Capacitor Calculation for Buck converter IC
- The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
- Resistor Value Table to set Output Voltage of Buck Converter IC
- Importance of Probe Calibration When Measuring Power: Deskew
- Impedance Characteristics of Bypass Capacitor
Thermal Design
- What Is Thermal Design
- Basics of Thermal Resistance and Heat Dissipation
- Method for Calculating Junction Temperature from Transient Thermal Resistance Data
- Notes for Temperature Measurement Using Thermocouples
- Two-Resistor Model for Thermal Simulation
- Notes for Temperature Measurement Using Forward Voltage of PN Junction
- Thermal Resistance
- Precautions When Measuring the Rear of the Package with a Thermocouple
Tools
2D/3D/CAD
- VQFN016V3030 Footprint / Symbol
- VQFN016V3030 3D STEP Data