The RICHTEK IC is high quality!  Integrated 95m and 50m FETs
 Continuous Current
 TSOT-23-6 (FC) : 3A
 SOT-563 (FC) : 2.5A
 Input Supply Voltage Range : 4.5V to 17V
 Maximum Output Voltage Range : 7V
 Advanced Constant On-Time (ACOTTM) Control
 Ultrafast Transient Response
 Optimized for Low-ESR Ceramic Output Capacitors
 High Accuracy Feedback Reference Voltage : 1%
 Optional for Operation Modes :
 RT6253A : Power Saving Mode (PSM)
 RT6253B : Forced PWM Mode
 Fixed Switching Frequency : 580kHz
 Enable Control and Fixed Soft-Start with typ.1ms
 Safe Start-Up from Pre-biased Output
 Input Under-Voltage Lockout (UVLO)
 Protection Function
 Output Under-Voltage Protection (UVP) with Hiccup Mode
 High- / Low-side MOSFET OCP and OTP Function
 RoHS Compliant and Halogen Free