ADP3333 Datasheet

Linear Regulators - Standard


The ADP3333 is a member of the ADP333x family of precision low dropout (LDO) anyCAP&reg; voltage regulators. Pin compatible with the MAX8860, the ADP3333 operates with a wider input voltage range of 2.6 V to 12 V and delivers a load current up to 300 mA. ADP3333 stands out from other conventional LDOs with a novel architecture and an enhanced process that enables it to offer performance advantages over its competition. Its patented design requires only a 1.0 &mu;F output capacitor for stability. This device is insensitive to output capacitor equivalentseriesresistance (ESR) and is stable with any good quality capacitor, including ceramic (MLCC) types for space-restrictedapplications. The ADP3333 achieves exceptional accuracy of &plusmn;0.8% at room temperature and &plusmn;1.8% over temperature, line, and load variations. The dropout voltage of the ADP3333 is only 140 mV (typical) at 300 mA. This device also includes a safety current limit, thermal overload protection, and a shutdownfeature. In shutdown mode, the ground current is reduced to less than 1 &mu;A. The ADP3333 has ultralow quiescent current, 70 &mu;A (typical) in light load situations. ADP3333 Features &bull; High accuracy over line and load: &plusmn;0.8% @ 25&deg;C,&bull; &plusmn;1.8% over temperature&bull; Ultralow dropout voltage: 230 mV (maximum) @ 300 mA&bull; Requires only COUT= 1.0 &micro;F for stability&bull; anyCAP is stable with any type of capacitor (including MLCC)&bull; Current and thermal limiting&bull; Low noise&bull; Low shutdown current: < 1 &micro;A &bull; 2.6 V to 12 V supply range&bull; 40&deg;C to +85&deg;C ambient temperature range&bull; Ultrasmall 8-lead MSOP package ADP3333 Applications &bull; Cellular phones&bull; PCMCIA cards&bull; Personal digital assistants (PDAs)&bull; DSP/ASIC supplies


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