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RT7238B Datasheet

Part Number RT7238B
Manufacturers Richtek
Logo Richtek
Description 500kHz Synchronous Step-Down Converter
Datasheet RT7238B DatasheetRT7238B Datasheet (PDF)

® RT7238B/C/D/E 8A, 23V, 500kHz Synchronous Step-Down Converter with 3.3V/5V LDO General Description The RT7238B/C/D/E is an advanced constant on-time (ACOTTM) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOTTM) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V. Ordering Information RT7238 .

  RT7238B   RT7238B






Part Number RT7238E
Manufacturers Richtek
Logo Richtek
Description 500kHz Synchronous Step-Down Converter
Datasheet RT7238B DatasheetRT7238E Datasheet (PDF)

® RT7238B/C/D/E 8A, 23V, 500kHz Synchronous Step-Down Converter with 3.3V/5V LDO General Description The RT7238B/C/D/E is an advanced constant on-time (ACOTTM) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOTTM) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V. Ordering Information RT7238 .

  RT7238B   RT7238B







Part Number RT7238D
Manufacturers Richtek
Logo Richtek
Description 500kHz Synchronous Step-Down Converter
Datasheet RT7238B DatasheetRT7238D Datasheet (PDF)

® RT7238B/C/D/E 8A, 23V, 500kHz Synchronous Step-Down Converter with 3.3V/5V LDO General Description The RT7238B/C/D/E is an advanced constant on-time (ACOTTM) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOTTM) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V. Ordering Information RT7238 .

  RT7238B   RT7238B







Part Number RT7238C
Manufacturers Richtek
Logo Richtek
Description 500kHz Synchronous Step-Down Converter
Datasheet RT7238B DatasheetRT7238C Datasheet (PDF)

® RT7238B/C/D/E 8A, 23V, 500kHz Synchronous Step-Down Converter with 3.3V/5V LDO General Description The RT7238B/C/D/E is an advanced constant on-time (ACOTTM) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOTTM) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V. Ordering Information RT7238 .

  RT7238B   RT7238B







500kHz Synchronous Step-Down Converter

® RT7238B/C/D/E 8A, 23V, 500kHz Synchronous Step-Down Converter with 3.3V/5V LDO General Description The RT7238B/C/D/E is an advanced constant on-time (ACOTTM) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOTTM) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V. Ordering Information RT7238 Package Type QUF : UQFN-10L 3x3 (FC) (U-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Output Voltage B : 3.35V C : 5.1V D : Adjustable E : 5V Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Features  Advanced Constant On-Time (ACOT) Control  8V to 23V (RT7238B/C/D/E) Input Voltage Range @ 8A Output Current  ACOTTM Mode Performs Fast Transient Response  ACOTTM Architecture to Enable all MLCC Output Capacitor Usage  Fixed 500kHz Switching Frequency  High Efficient Internal Power MOSFET Switch  27mΩ (High-Side) and 10mΩ (Low-Side)  Adjustable Output Voltage from 0.6V to 5V (RT7238D)  Fixed 3.3V (RT7238B/D) or 5V (RT7238C/E) LDO Output Supplies 70mA  Pre-biased Soft-Start  Cycle-by-Cycle Over-Current Protection  Input Under-Voltage Lockout  Thermal Shutdown  Output Over/Under-Voltage Protection Applications  Industrial and Commercia.


2020-03-19 : R7780    RT8228B    RT8241E    RT6543B    RT6543A    RT8020E    RT8237J    RT8845A    RT8129B    RT8120K   


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