RT8110
Compact Synchronous Buck DC/DC PWM Controller
General Description
The RT8110 is a compact fixed-frequency PWM con...
RT8110
Compact Synchronous Buck DC/DC PWM Controller
General Description
The RT8110 is a compact fixed-frequency PWM controller with integrated
MOSFET drivers for single-phase synchronous buck converter. This part features wide input
voltage range operation and tiny package. An internal preregulator drives an external BJT to provide regulated output
voltage from the input
voltage to support VCC. Therefore, the controller can operate with wide input
voltage range. The RT8110 utilizes
voltage-mode control with internal compensation to simplify the converter design. An internal 0.8V reference
voltage allows low output
voltage application. The switching frequency is fixed at 400kHz to reduce the external passive component size to save board space. Low-side
MOSFET RDS(ON) is used for inductor current sensing. The RT8110 provides under
voltage protection, current limit, over current protection and over temperature protection.
Features
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8V to 23V Wide Range Operation 0.8V Internal Reference Internal Soft Start High DC Gain
Voltage Mode PWM Control Fixed 400kHz Switching Frequency Fast Transient Response Fully Dynamic 0 to 80% Duty Cycle Over Current Protection Under
Voltage Protection Over Temperature Protection Tiny Package TSOT-23-8 RoHS Compliant and 100% Lead (Pb)-Free
Applications
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Ordering Information
RT8110 Package Type J8 : TSOT-23-8 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commercial Standa...