RTQ2102B-QA Datasheet | Richtek

Description The RTQ2102A and RTQ2102B are 1.5A, high-efficiency, Advanced Constant-On-Time (ACOT® ) synchronous stepdown converters. The device operates with input voltages from 3V to 6V. The device can program the output voltage between 0.45V to VIN. The low quiescent current design with the integrated low RDS(ON) power MOSFETs achieves high efficiency over the wide load range. The advanced COT operation allows transient responses to be optimized over a wide range of loads, and output capacitors to efficiently reduce external ponent count. The RTQ2102A and RTQ2102B provide up to 2.7MHz switching frequency to minimize the size of output inductor and capacitors. The RTQ2102A and RTQ2102B provide plete protection functions such as input undervoltage lockout, output undervoltage protection, overcurrent protection, and thermal shutdown. The cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The RTQ2102A and RTQ2102B are available in WDFN-8L 3x3 package. Features - AEC-Q100 Grade 1 Qualified - Input Supply Voltage Range: 3V to 6V - Output Voltage Range: 0.45V to VIN - 1.5A Converter Integrated 110m and 90m FETS in WDFN-8L 3x3 Package - Advanced Constant On-Time (ACOT®) Control - Ultrafast Transient Response - No Needs for External pensations - Optimized for Low-ESR Ceramic Output Capacitors - Low Quiescent Current: 30A - Steady Switching Frequency: 2.7MHz - Automatic Power Saving Mode (PSM) - Input Undervoltage Lockout (UVLO) - Output Undervoltage Protection (UVP) with Hiccup Mode - Over-Temperature Protection (OTP) - Power Good Indication Applications - Mobile Phones and Handheld Devices - STB, Cable Modem, and x DSL Platforms - WLAN ASIC Power/Storage (SSD and HDD) - General Purpose for POL LV Buck Converter - Automotive Infotainment - Automotive Instrument Clusters & HUD - Car Connectivity Simplified Application Circuit RTQ2102A PGOOD Power...