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...
Description
®
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...
Similar Datasheet