6.0V to 28V, 1.2A 1ch Step-Down Switching Regulator - BD9E151NUXThe BD9E151NUX is a 28V, 1.2A diode-rectification buck converter that integrated internal high-side 30V Power MOSFET. To increase efficiency at light loads, a pulse skipping is automatically activated. Furthermore, the 0uA shutdown supply current allows the device to be used in battery powered application. Current mode control with internal slope compensation simplifies the external component count while allowing the use of ceramic output capacitors.
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| * This product is a STANDARD grade product and not recommend for on-vehicle devices. | ||||
| Grade | Standard |
| ch | 1 |
| Integrated FET / Controller | Integrated FET |
| Buck / Boost / Buck-Boost / Inverting | Buck |
| Synchronous / Nonsynchronous | Nonsynchronous |
| Vin1(Min.)[V] | 6.0 |
| Vin1(Max.)[V] | 28.0 |
| Vout1(Min.)[V] | 1.0 |
| Vout1(Max.)[V] | 19.6 |
| Iout1(Max.)[A] | 1.2 |
| SW frequency(Max.)[MHz] | 0.6 |
| Light Load mode | No |
| EN | Yes |
| PGOOD | No |
| Operating Temperature (Min.)[°C] | -40 |
| Operating Temperature (Max.)[°C] | 85 |
- ・High and Wide Input Range (VIN=6V~28V)
・30V/80mΩ Internal Power MOSFET
・600kHz Fixed Operating Frequency
・Feedback Pin Voltage 1.0V±1.0%
・Internal Over Current Protection(OCP), Under Voltage Locked Out(UVLO), Over Voltage Protection(OVP), Thermal Shut down(TSD)
・0μA Low Shutdown Supply Current
・VSON008X2030 package
Reference Circuits and Bomlist
Evaluation Board for ROHM's BD9E151NUX non-Synchronous Buck Converter with Integrated FET
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
Resistor Value Table to set Output Voltage of Buck Converter IC
PCB Layout Techniques of Buck Converter
Snubber Circuit for Buck Converter IC
Capacitor Calculation for Buck converter IC
Inductor Calculation for Buck converter IC
Buck DC/DC Converter Recommended Inductor List
Efficiency of Buck Converter
Calculation of Power Loss (Synchronous)
Thermal Resistance
The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
Considerations for Power Inductors Used for Buck Converters
Thermal Resistance
For ICs