ADP2230

Data Sheet Dual 2 MHz, 800 mA, Synchronous, Low Quiescent Current Buck Regulator ADP2230 FEATURES Input voltage range: 2.3 V to 6.5 V Fixed and adjustable output voltage options Fixed output voltage pair options: 1.2 V/1.8 V, 1.2 V/3.3 V, 1.8 V/3.3 V Adjustable output voltage range: 0.8 V to 6 V Minimum guaranteed continuous output current: 800 mA Up to 94% efficiency Low quiescent current of 15 µA for both channels in power saving mode (PSM) Low shutdown current: 0.1 μA (typical) 100% duty cycle for low dropout operation SYNC pin switching frequency options 2 MHz fixed pulse-width modulation (PWM) mode 2 MHz PSM/PWM automatic transitioning mode External clock synchronization from 1.5 MHz to 2.5 MHz Enable input with precision thresholds for each output 180° phase shifted PWM outputs for minimum VIN ripple Current-limit and thermal shutdown (TSD) protection Quick output discharge (QOD) 10-lead, 3 mm × 3 mm × 0.75 mm LFCSP package APPLICATIONS Portable and battery-powered equipment Automatic meter readers (WSN) Point of sales and transaction processing instruments Mobile phones Digital cameras and audio devices Medical instruments Medium format display tablets and pads GENERAL DESCRIPTION The ADP2230 includes two high efficiency, low quiescent current, 800 mA, step-down, dc-to-dc converters in a small, 10-lead, 3 mm × 3 mm, LFCSP package. The total solution requires only five tiny external components. When the ADP2230 is used with three 0603 capacitors and two 2 mm × 2 mm in...