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ADP7104CP-EVALZ 数据表(PDF) 1 Page - Analog Devices |
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ADP7104CP-EVALZ 数据表(HTML) 1 Page - Analog Devices |
1 / 28 page 20 V, 500 mA, Low Noise, CMOS LDO Data Sheet ADP7104 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 ©2011–2012 Analog Devices, Inc. All rights reserved. FEATURES Input voltage range: 3.3 V to 20 V Maximum output current: 500 mA Low noise: 15 µV rms for fixed output versions PSRR performance of 60 dB at 10 kHz, VOUT = 3.3 V Reverse current protection Low dropout voltage: 350 mV at 500 mA Initial accuracy: ±0.8% Accuracy over line, load, and temperature: −2%/+1% Low quiescent current (VIN = 5 V), IGND= 900 μA with 500 mA load Low shutdown current: <40 µA at VIN = 12 V, stable with small 1 µF ceramic output capacitor 7 fixed output voltage options: 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5 V, and 9 V Adjustable output from 1.22 V to VIN − VDO Foldback current limit and thermal overload protection User programmable precision UVLO/enable Power-good indicator 8-lead LFCSP and 8-lead SOIC packages APPLICATIONS Regulation to noise sensitive applications: ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks, and PLLs Communications and infrastructure Medical and healthcare Industrial and instrumentation TYPICAL APPLICATION CIRCUITS VOUT = 5V VIN = 8V PG VOUT VIN PG GND SENSE EN/ UVLO 100k Ω 100k Ω 100k Ω COUT 1µF CIN 1µF ON OFF + + Figure 1. ADP7104 with Fixed Output Voltage, 5 V VOUT = 5V VIN = 8V PG VOUT VIN PG GND ADJ EN/ UVLO 100k Ω 100k Ω 100k Ω COUT 1µF CIN 1µF ON OFF + + 13k Ω 40.2k Ω Figure 2. ADP7104 with Adjustable Output Voltage, 5 V GENERAL DESCRIPTION The ADP7104 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 500 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 19 V to 1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection, low noise, and achieves excellent line and load transient response with just a small 1 µF ceramic output capacitor. The ADP7104 is available in seven fixed output voltage options and an adjustable version, which allows output voltages that range from 1.22 V to VIN − VDO via an external feedback divider. The ADP7104 output noise voltage is 15 μV rms and is inde- pendent of the output voltage. A digital power-good output allows power system monitors to check the health of the output voltage. A user programmable precision undervoltage lockout function facilitates sequencing of multiple power supplies. The ADP7104 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages. The LFCSP offers a very compact solution and also provides excellent thermal performance for applications requiring up to 500 mA of output current in a small, low-profile footprint. |
类似零件编号 - ADP7104CP-EVALZ |
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类似说明 - ADP7104CP-EVALZ |
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