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ADP1715ARMZ-0.85R7 Datasheet(PDF) 1 Page - Analog Devices |
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ADP1715ARMZ-0.85R7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page 500 mA, Low Dropout, CMOS Linear Regulator ADP1715/ADP1716 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 ©2006 Analog Devices, Inc. All rights reserved. FEATURES Maximum output current: 500 mA Input voltage range: 2.5 V to 5.5 V Low shutdown current: <1 μA Low dropout voltage: 250 mV @ 500 mA load 50 mV @ 100 mA load Initial accuracy: ±1% Accuracy over line, load, and temperature: ±3% 16 fixed output voltage options with soft start: 0.75 V to 3.3 V (ADP1715) Adjustable output voltage option: 0.8 V to 5.0 V (ADP1715 Adjustable) 16 fixed output voltage options with tracking: 0.75 V to 3.3 V (ADP1716) Stable with small 2.2 μF ceramic output capacitor Excellent load/line transient response Current limit and thermal overload protection Logic controlled enable 8-lead thermally enhanced MSOP package APPLICATIONS Notebook computers Memory components Telecommunications equipment Network equipment DSP/FPGA/μP supplies Instrumentation equipment/data acquisition systems TYPICAL APPLICATION CIRCUITS GND 1 GND 2 GND 3 GND 4 8 7 6 EN IN OUT SS 5 ADP1715 VIN = 5V VOUT = 3.3V 10nF 2.2µF 2.2µF Figure 1. ADP1715 with Fixed Output Voltage, 3.3 V GND 1 GND 2 GND 3 GND 4 8 7 6 EN IN OUT ADJ 5 ADP1715 ADJUSTABLE VIN = 5V VOUT = 0.8(1 + R1/R2) 2.2µF 2.2µF R1 R2 Figure 2. ADP1715 with Adjustable Output Voltage, 0.8 V to 5.0 V GND 1 GND 2 GND 3 GND 4 8 7 6 EN IN OUT TRK 5 ADP1716 VIN = 5V VTRK = 0V TO 5V VOUT 2.2µF 2.2µF 3 2 1 0 123 45 VOUT (V) VTRK (V) Figure 3. ADP1716 with Output Voltage Tracking GENERAL DESCRIPTION The ADP1715/ADP1716 are low dropout, CMOS linear regulators that operate from 2.5 V to 5.5 V and provide up to 500 mA of output current. Using an advanced proprietary architecture, they provide high power supply rejection and achieve excellent line and load transient response with just a small 2.2 μF ceramic output capacitor. Three versions of this part are available, one with fixed output voltage options and variable soft start (ADP1715), one with adjustable output voltage and fixed soft start (ADP1715 Adjustable), and one with voltage tracking in fixed output voltage options (ADP1716). The fixed output voltage options are internally set to one of sixteen values between 0.75 V and 3.3 V; the adjustable output voltage can be set to any value between 0.8 V and 5.0 V by an external voltage divider connected from OUT to ADJ. The variable soft start uses an external capacitor at SS to control the output voltage ramp. Tracking limits the output voltage to the at-or-below voltage at the TRK pin. The ADP1715/ADP1716 are available in 8-lead thermally enhanced MSOP packages, making them not only a very compact solution but also providing excellent thermal performance for applications requiring up to 500 mA of output current in a small, low profile footprint. |
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