RT7285A

® RT7285/A 1.5A, 18V, 500kHz ACOTTMSynchronous Step-Down Converter General Description The RT7285/A is a synchronous step-down converter with Advanced Constant On-Time (ACOTTM) mode control. The ACOTTM provides a very fast transient response with few external components. The low impedance internal MOSFET supports high efficiency operation with wide input voltage range from 4.3V to 18V. The proprietary circuit of the RT7285/A enables to support all ceramic capacitors. The output voltage can be adjusted between 0.6V and 8V. Ordering Information RT7285/A Package Type E : SOT-23-6 J6 : TSOT-23-6 Lead Plating System G : Green (Halogen Free and Pb Free) TSOT-23-6 SOT-23-6 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. Pin Configurations (TOP VIEW) SW VIN EN 654 23 BOOT GND FB T/SOT-23-6 Features  4.3V to 18V Input Voltage Range  1.5A Output Current  Advanced Constant On-Time Control  Fast Transient Response  Support All Ceramic Capacitors  Up to 95% Efficiency  500kHz Switching Frequency  Adjustable Output Voltage from 0.6V to 8V  Cycle-by-Cycle Current Limit  Input Under-Voltage Lockout  Hiccup Mode Under-Voltage Protection  Thermal Shutdown  Power Saving Mode for High Efficiency at Light Load  RoHS Compliant and Halogen Free Applications  Industrial and Commercial Low Power Systems  Computer Peripherals  LCD Monitors and TVs  Green ...