PDF ADP3307ART-27 Data sheet ( Hoja de datos )

Número de pieza	ADP3307ART-27
Descripción	High Accuracy anyCAP 100 mA Low Dropout Linear Regulator
Fabricantes	Analog Devices
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No Preview Available ! a High Accuracy anyCAP™ 100 mA Low Dropout Linear Regulator ADP3307 FEATURES 0.8% Accuracy Over Line and Load Regulations @ +25؇C Ultralow Dropout Voltage: 120 mV Typical @ 100 mA Requires only CO = 0.47 ␮F for Stability anyCAP = Stable with All Types of Output Capacitors (Including MLCC) Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 1 ␮A 3.0 V to 12 V Supply Range –20؇C to +85؇C Ambient Temperature Range Several Fixed Voltage Options Ultrasmall SOT-23-6 (RT-6) Package Excellent Line and Load Regulations APPLICATIONS Cellular Telephones Notebook, Palmtop Computers Battery Powered Systems PCMCIA Regulator Bar Code Scanners Camcorders, Cameras FUNCTIONAL BLOCK DIAGRAM IN Q1 ERR Q2 SD THERMAL PROTECTION CC DRIVER ADP3307 OUT R1 GM BANDGAP REF NR R2 GND VIN C1 + 0.47␮F – NR ADP3307-3.3 IN OUT ERR R1 330k⍀ EOUT VOUT = +3.3V C2 0.47␮F ON OFF SD GND Figure 1. Typical Application Circuit GENERAL DESCRIPTION The ADP3307 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators. The ADP3307 stands out from the conventional LDOs with a novel architecture and an enhanced process. Its patented design requires only a 0.47 µF output capacitor for stability. This device is stable with any type of capacitor regardless of its ESR (Equivalent Series Resistance) value, including ceramic types (MLCC) for space restricted applications. The ADP3307 achieves exceptional accuracy of ± 0.8% at room temperature and ± 1.4% overall accuracy over temperature, line and load regulations. The dropout voltage of the ADP3307 is only 120 mV (typical) at 100 mA. The ADP3307 operates with a wide input voltage range from 3.0 V to 12 V and delivers a load current in excess of 100 mA. It features an error flag that signals when the device is about to lose regulation or when the short circuit or thermal overload protection is activated. Other features include shutdown and optional noise reduction capabilities. The ADP330x anyCAP LDO family offers a wide range of output voltages and output current levels from 50 mA to 300 mA: ADP3300 (50 mA, SOT-6) ADP3307 (100 mA, SOT) ADP3301 (100 mA, SO-8) ADP3302 (100 mA, Dual Output) ADP3303 (200 mA) ADP3306 (300 mA) anyCAP is a trademark of Analog Devices, Inc. REV. 0 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 rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1997 1 page 3.220 3.210 3.200 3.190 3.180 7.5 7.0 VOUT = 3.2V VIN RL = 32⍀ CL = 0.47␮F 0 40 80 120 160 200 240 280 320 360 400 TIME – ␮s Figure 11. Line Transient Response 3.220 3.210 3.200 3.190 3.180 VOUT = 3.2V RL = 3.2k⍀ CL = 0.47␮F VIN 7.5 7.0 0 20 40 60 80 100 120 140 160 180 200 TIME – ␮s Figure 12. Line Transient Response ADP3307 3.220 3.210 VOUT = 3.2V CL = 0.47␮F 3.200 3.190 3.180 100 10 0 100 200 300 400 TIME – ␮s Figure 13. Load Transient 500 3.220 3.210 VOUT = 3.2V CL = 4.7␮F 3.200 3.190 3.180 100 10 0 100 200 300 400 TIME – ␮s Figure 14. Load Transient 500 300 200 IOUT 100 0 4 VOUT = 3.2V 2 VOUT 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 TIME – sec Figure 15. Short Circuit Current 4 CL = 0.47␮F 3 2 1 0 3 0 VOUT 3.2V CL = 4.7␮F VOUT = 3.2V RL = 32⍀ VSD 3V 0 20 40 60 80 100 TIME – ␮s Figure 16. Turn On 4 3.2V 3 2 1 0 3 0 VOUT = 3.2V RL = 32⍀ CL = 0.47␮F VSD 0 10 20 30 40 TIME – ␮s Figure 17. Turn Off 50 0 –10 a. 0.47␮F, RL = 33k⍀ b. 0.47␮F, RL = 33⍀ –20 c. 10␮F, RL = 33k⍀ d. 10␮F, RL = 33⍀ –30 –40 VOUT = 3.3V b –50 –60 –70 b d –80 ad c –90 ac –100 10 100 1k 10k 100k FREQUENCY – Hz 1M 10M Figure 18. Power Supply Ripple Rejection 10 VOUT = 5V, CL = 0.47␮F IL = 1mA, CNR = 0 1 0.47␮F BYPASS PIN 5 TO PIN 1 VOUT = 3.3V, CL = 0.47␮F IL = 1mA, CNR = 0 0.1 VOUT = 2.7– 5.0V, CL = 0.47␮F IL = 1mA, CNR = 10nF 0.01 100 VOUT = 2.7– 5.0V, CL = 4.7␮F IL = 1mA, CNR = 10nF 1k 10k FREQUENCY – Hz 100k Figure 19. Output Noise Density REV. 0 –5– 5 Page

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