RT8120 Datasheet | Richtek

® Single-Phase Synchronous Buck PWM Controller General Description The RT8120 is a single-phase synchronous buck PWM DC-DC controller designed to drive two N-MOSFET. It provides a highly accurate, programmable output voltage precisely regulated to low voltage requirements with an internal 0.8V ±1% ( option for 0.6V ±1.5%) reference. The RT8120 uses a single feedback loop voltage mode PWM control for fast transient response. An oscillator with fixed frequency 300k Hz reduces the external inductor and capacitor ponent size for saving PCB board area. The RT8120 provides fast transient response to satisfy high current output applications while minimizing external ponents. It is suitable for high performance graphic processors, DDR and VTT power. The RT8120 incorporates an externally pensated error amplifier and an internal soft-start and output enable. The RT8120 es in SOP-8 and SOP-8 (Exposed Pad) packages. Ordering Information Package Type S : SOP-8 SP : SOP-8 (Exposed-Pad-Option 1) Lead Plating System G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with Halogen Free and Pb free) Reference Voltage A/C : 0.6V B/D : 0.8V Note : Richtek products are :  Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in Sn Pb or Pb-free soldering processes. Features - Wide Input Voltage Range : 3V to 13.2V - Embedded Switching Boot Diode - 0.8V ±1%, 0.6V ±1.5% Internal Reference - Shoot-Through Protection and Short Pulse Free Technology for Gate Drivers - Fixed Frequency 300k Hz - Internal Soft-Start - Over Current Protection by Sensing MOSFET RDS(ON) - Enable/Shutdown Control - Drives Two N-MOSFETs - Full Duty Cycle : 0% to 85% - Fast Transient Response - Voltage Mode PWM Control with External Feedback Loop pensation - Pinless LGATE Over Current Setting (LGOCS) - Under Voltage Protection - SOP-8 and SOP-8 (Exposed Pad) Packages - Ro HS pliant and Halogen...