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The RT8110C is a compact fixed-frequency PWM controller with integrated MOSFET drivers for single power rail synchronous single-phase buck converter. This part features an internal regulator that allows wide input voltage range operation. The RT8110C utilizes voltage-mode control with internal control loop 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. The RT8110C provides under voltage protection, current limit, over current protection and over temperature protection. The low-side MOSFET RDS(ON) is used to sense the inductor current for over current protection.

Applications

  • LCD TV
  • Set-top Box Power Supplies
  • PC Subsystem Power Supplies
  • Cable Modems, DSL Modems
  • DSP and Core Communication Processor Power Supplies
  • Memory Power Supplies
  • Personal Computer Peripherals
  • Industrial Power Supplies
  • Low Voltage Distributed Power Supplies
Key Spec.
RT8110C
Status Active
Vs (typ) (V) 5
Vin (min) (V) 10
Vin (max) (V) 28
Vout (min) (V) 0.8
Vout (max) (V) 5
Output Adj. Method Resistor
Accuracy (+/- %) 2
Freq (typ) (kHz) 400
Iq (typ) (mA) 3
Ext Sync No
Features Force PWM;OCP;SCP;UVP;Voltage Mode Control
Package Type TSOT-28
Features
  • 10V to 28V Wide Input Voltage Range
  • Controller Support 5V Supply Voltage
  • Integrated Non-Overlapping MOSFET Driver
  • 0.8V Internal Reference
  • Internal Soft-Start
  • Voltage Mode PWM with Internal Control Loop Compensation
  • Fixed 400kHz Switching Frequency
  • Fast Transient Response
  • 80% Maximum Duty Cycle
  • Over Current Protection
  • Under Voltage Protection
  • Over Temperature Protection
  • Tiny Package TSOT-23-8
  • RoHS Compliant and Halogen Free
Please confirm with our distributor or sales representative for actual stock status.
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