28 V, 200 mA, Low Noise, Linear Regulator Data Sheet ADP7182 FEATURES TYPICAL APPLICATION CIRCUITS Low noise: 18 V rms C C IN OUT 2.2F 2.2F Power supply rejection ratio (PSRR): 66 dB at 10 kHz at V = 3 V OUT GND Positive or negative enable logic V = 8V V = 5V VIN VOUT IN OUT Stable with small 2.2 F ceramic output capacitor Input voltage range: 2.7 V to 28 V ADP7182 ON 2V Maximum output current: 200 mA OFF 0V EN NC 2V Low dropout voltage: 185 mV at 200 mA load ON Initial accuracy: 1% Figure 1. ADP7182 with Fixed Output Voltage, VOUT = 5 V Accuracy over line, load, and temperature C C +2% maximum/3% minimum IN OUT 13k 2.2F 2.2F Low quiescent current, I = 650 A with 200 mA load GND GND 40.2k Low shutdown current: 2 A V = 8V VIN VOUT V = 5V IN OUT Adjustable output from 1.22 V to V + V IN DO ON ADP7182 Current-limit and thermal overload protection 2V OFF 0V EN ADJ 6- and 8-lead LFCSP and 5-lead TSOT 2V ON Supported by ADIsimPower tool Figure 2. ADP7182 with Adjustable Output Voltage, VOUT = 5 V APPLICATIONS Regulation to noise sensitive applications Analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, precision amplifiers Communications and infrastructure Medical and healthcare Industrial and instrumentation GENERAL DESCRIPTION The ADP7182 is a CMOS, low dropout (LDO) linear regulator The following fixed output voltages are available from stock: 5 V that operates from 2.7 V to 28 V and provides up to 200 mA (3 mm 3 mm LFCSP), 1.8 V, 2.5 V, 3 V, 5 V (TSOT), 1.2 V, of output current. This high input voltage LDO is ideal for regu- 1.5 V, 2.5 V, 5 V (2.00 mm 2.00 mm LFCSP). Additional lation of high performance analog and mixed signal circuits voltages are available by special order. operating from 27 V down to 1.2 V rails. Using an advanced The ADP7182 regulator output noise is 18 V rms independent proprietary architecture, it provides high power supply rejection of the output voltage. The enable logic is capable of interfacing and low noise, and achieves excellent line and load transient with positive or negative logic levels for maximum flexibility. response with a small 2.2 F ceramic output capacitor. The ADP7182 is available in 5-lead TSOT, 6- and 8-lead LFCSP The ADP7182 is available in fixed output voltage and an packages for a small, low profile footprint. adjustable version that allows the output voltage to range from 1.22 V to VIN + VDO via an external feedback divider. Rev. M Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20132019 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 10703-001 10703-002ADP7182 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 22 Applications ....................................................................................... 1 Adjustable Mode Operation ..................................................... 22 Typical Application Circuits ............................................................ 1 Applications Information .............................................................. 23 General Description ......................................................................... 1 ADIsimPower Design Tool ....................................................... 23 Revision History ............................................................................... 2 Capacitor Selection .................................................................... 23 Specif icat ions ..................................................................................... 4 Enable Pin Operation ................................................................ 24 Input and Output Capacitance, Recommended Soft Start ...................................................................................... 24 Specifications ................................................................................ 5 Noise Reduction of the Adjustable ADP7182 ............................ 25 Absolute Maximum Ratings ............................................................ 6 Current-Limit and Thermal Overload Protection ................. 25 Thermal Data ................................................................................ 6 Thermal Considerations ............................................................ 26 Thermal Resistance ...................................................................... 6 PCB Layout Considerations ...................................................... 29 ESD Caution .................................................................................. 6 Outline Dimensions ....................................................................... 31 Pin Configurations and Function Descriptions ........................... 7 Ordering Guide .......................................................................... 32 Typical Performance Characteristics ........................................... 10 REVISION HISTORY 6/2019Rev. L to Rev. M 3/2016Rev. E to Rev. F Changes to Adjustable Mode Operation Section ....................... 22 Changes to Figure 62 ...................................................................... 17 10/2018Rev. K to Rev. L 9/2014Rev. D to Rev. E Changes to Noise Reduction of the Adjustable ADP7182 Changes to Features and General Description Sections .............. 1 Section .............................................................................................. 25 Changes to Figure 101 ................................................................... 28 Changes to Ordering Guide .......................................................... 32 Added Table 11 ............................................................................... 29 Changes to Ordering Guide .......................................................... 31 7/2018Rev. J to Rev. K Changes to Outline Dimensions ................................................... 30 7/2014Rev. C to Rev. D Changes to Ordering Guide .......................................................... 31 Added 6-Lead LFCSP (Throughout) .............................................. 1 Added 6-Lead LFCSP Thermal Resistance Parameters ............... 5 Added Figure 7, Figure 8, and Table 7 ............................................ 8 3/2017Rev. I to Rev. J Changes to Specifications Section .................................................. 3 Added 6-Lead LFCSP JA Values to Table 8 Added 6-Lead Updated Outline Dimensions ....................................................... 30 LFCSP JB Value to Table 10 ......................................................... 25 Changes to Ordering Guide .......................................................... 31 Added Figure 92, Figure 93, and Figure 94 ................................. 26 Changes to Thermal Characterization Parameter, Section JB 12/2016Rev. H to Rev. I and Added Figure 99 ...................................................................... 27 Changes to Figure 77 ............................................................................... 21 Added Figure 101 ........................................................................... 28 Moved Theory of Operation/Enable Pin Operation Section.... 23 Added Figure 104, Outline Dimensions ...................................... 29 Changes to Enable Pin Operation Section .................................. 23 Changes to Ordering Guide .......................................................... 30 11/2016Rev. G to Rev. H 9/2013Rev. B to Rev. C Change to Thermal Considerations Section ............................... 25 Changes to Ordering Guide .......................................................... 28 Updated Outline Dimensions ....................................................... 30 Changes to Ordering Guide .......................................................... 31 6/2013Rev. A to Rev. B Changes to General Description ..................................................... 1 6/2016Rev. F to Rev. G Updated Outline Dimensions ....................................................... 27 Changes to Figure 101 .................................................................... 28 Changes to Ordering Guide .......................................................... 28 Rev. M Page 2 of 32