ADP2140
FEATURES
Input voltage range: 2.3 V to 5.5 V LDO input (VIN2) 1.65 V to 5.5 V Buck output voltage range: 1.0 V to 3.3 V LDO output voltage range: 0.8 V to 3.3 V Buck output current: 600 m A LDO output current: 300 m A LDO quiescent current: 22 μA with zero load Buck quiescent current: 20 μA in PSM mode Low shutdown current: <0.3 μA Low LDO dropout 110 m V @ 300 m A load High LDO PSRR
65 d B @ 10 k Hz at VOUT2 = 1.2 V 55 d B @ 100 k Hz at VOUT2 = 1.2 V Low noise LDO: 40 μV rms at VOUT2 = 1.2 V Initial accuracy: ±1% Current-limit and thermal overload protection Power-good indicator Optional enable sequencing 10-lead 0.75 mm × 3 mm × 3 mm LFCSP package
APPLICATIONS
Mobile phones Personal media players Digital camera and audio devices Portable and battery-powered equipment
GENERAL DESCRIPTION
The ADP2140 includes a high efficiency, low quiescent 600 m A stepdown dc-to-dc converter and a 300 m A LDO packaged in a small 10-lead 3 mm × 3 mm LFCSP. The total solution requires only four tiny external...
