RT6212A

RT6212A/B 2A, 18V, 500kHz, ACOTTM Step-Down Converter General Description The RT6212A/B is a high-efficiency, monolithic synchronous step-down DC-DC converter that can deliver up to 2A output current from a 4.5V to 18V input supply. The RT6212A/B adopts ACOT architecture to allow the transient response to be improved and keep in constant frequency. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault conditions also include output under-voltage protection, output over-current protection, and thermal shutdown. Ordering Information RT6212A/B ( ) Package Type J6F : TSOT-23-6 (FC) Lead Plating System G : Green (Halogen Free and Pb Free) Reference Voltage None : VREF = 0.8V R : VREF = 0.765V UVP Option H : Hiccup PSM/PWM A : PSM/PWM B : Force-PWM Features  Integrated 163m/86m MOSFETs  4.5V to 18V Supply Voltage Range  500kHz Switching Frequency  ACOT Control  Feedback Reference Voltage 0.8V ± 1.5%  Feedback Reference Voltage 0.765V ± 1.5%  Internal Start-Up into Pre-Biased Outputs  Compact Package : TSOT-23-6 Pin  Input Under-Voltage Lockout  Over-Current Protection and Hiccup Applications  Set-Top Boxes  Portable TVs  Access Point Routers  DSL Modems  LCD TVs Marking Information RT6212AHRGJ6F 2W=DNN 2W= : Product Code DNN : Date Code RT6212BHRGJ6F 2V=DNN 2V= : Product Code DNN : Date Code Note : Richtek products are :  RoHS compliant and compatible with the curre...