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ADP3333ARMZ-2.5-RL1 bảng dữ liệu(PDF) 1 Page - Analog Devices |
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ADP3333ARMZ-2.5-RL1 bảng dữ liệu(HTML) 1 Page - Analog Devices |
1 / 12 page High Accuracy Ultralow IQ, 300 mA, anyCAP Low Dropout Regulator ADP3333 Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2001–2009 Analog Devices, Inc. All rights reserved. FEATURES High accuracy over line and load: ±0.8% @ 25°C, ±1.8% over temperature Ultralow dropout voltage: 230 mV (maximum) @ 300 mA Requires only C OUT = 1.0 µF for stability anyCAP is stable with any type of capacitor (including MLCC) Current and thermal limiting Low noise Low shutdown current: < 1 µA 2.6 V to 12 V supply range −40°C to +85°C ambient temperature range Ultrasmall 8-lead MSOP package APPLICATIONS Cellular phones PCMCIA cards Personal digital assistants (PDAs) DSP/ASIC supplies FUNCTIONAL BLOCK DIAGRAM THERMAL PROTECTION CC IN ADP3333 OUT GND Q1 BAND GAP REF DRIVER gm SD R1 R2 Figure 1. GENERAL DESCRIPTION The ADP3333 is a member of the ADP333x family of precision low dropout (LDO) anyCAP® 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 μF output capacitor for stability. This device is insensitive to output capacitor equivalent series resistance (ESR) and is stable with any good quality capacitor, including ceramic (MLCC) types for space-restricted applications. The ADP3333 achieves exceptional accuracy of ±0.8% at room temperature and ±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 shutdown feature. In shutdown mode, the ground current is reduced to less than 1 μA. The ADP3333 has ultralow quiescent current, 70 μA (typical) in light load situations. ADP3333 NC IN GND VOUT ON OFF OUT SD NC = NO CONNECT 4 1 2 7 3 + COUT 1µF CIN 1µF VIN + Figure 2. Typical Application Circuit |
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