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ADP124ARHZ-2.8-R7 Arkusz danych(PDF) 1 Page - Analog Devices |
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ADP124ARHZ-2.8-R7 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 20 page 5.5 V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulators ADP124/ADP125 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother 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 ©2009 Analog Devices, Inc. All rights reserved. FEATURES Input voltage supply range: 2.3 V to 5.5 V 500 mA maximum output current Fixed and adjustable output voltage versions 1% initial accuracy Up to 31 fixed-output voltage options available from 1.75 V to 3.3 V Adjustable-output voltage range from 0.8 V to 5.0 V Very low dropout voltage: 130 mV Low quiescent current: 45 μA Low shutdown current: <1 μA Excellent PSRR performance: 60 dB at 100 kHz Excellent load/line transient response Optimized for small 1.0 μF ceramic capacitors Current limit and thermal overload protection Logic controlled enable Compact 8-lead exposed paddle MSOP package APPLICATIONS Digital camera and audio devices Portable and battery-powered equipment Automatic meter reading (AMR) meters GPS and location management units Medical instrumentation Point of load power TYPICAL APPLICATION CIRCUITS 2 4 1 5 8 VOUT = 3.3V VIN = 5.5V VOUT VOUT VIN VOUT SENSE NC GND VIN EN C2 C1 ADP124 OFF ON 7 3 6 Figure 1. ADP124 with Fixed Output Voltage 2 4 1 5 8 VOUT = 3.3V VIN = 5.5V VOUT VOUT VIN ADJ NC GND VIN EN C2 R1 R2 C1 ADP125 7 3 6 OFF ON Figure 2. ADP 125 with Adjustable Output Voltage GENERAL DESCRIPTION The ADP124/ADP125 are low quiescent current, low dropout linear regulators. They are designed to operate from an input voltage between 2.3 V and 5.5 V and to provide up to 500 mA of output current. The low 130 mV dropout voltage at a 500 mA load improves efficiency and allows operation over a wide input voltage range. The low 210 μA of quiescent current with a 500 mA load makes the ADP124/ADP125 ideal for battery-operated portable equipment. The ADP124 is capable of 31 fixed-output voltages from 1.75 V to 3.3 V. The ADP125 is the adjustable version of the device and allows the output voltage to be set between 0.8 V and 5.0 V by an external voltage divider. The ADP124/ADP125 are specifically designed for stable operation with tiny 1 μF ceramic input and output capacitors to meet the requirements of high performance, space constrained applications. The ADP124/ADP125 have an internal soft start that gives a constant start-up time of 350 μs. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP124/ADP125 are available in an 8-lead exposed paddle MSOP package. When compared with the standard MSOP package, the exposed paddle MSOP package has lower thermal resistance (θJA). The lower thermal resistance package allows the ADP124/ADP125 to meet the needs of a variety of portable applications while minimizing the rise in junction temperature. |
Podobny numer części - ADP124ARHZ-2.8-R7 |
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Podobny opis - ADP124ARHZ-2.8-R7 |
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