PDF ADP3303A Data sheet ( Hoja de datos )

Número de pieza	ADP3303A
Descripción	High Accuracy anyCAP Adjustable 200 mA Low Dropout Linear Regulator
Fabricantes	Analog Devices
Logotipo
Hay una vista previa y un enlace de descarga de ADP3303A (archivo pdf) en la parte inferior de esta página. Total 8 Páginas
No Preview Available ! a High Accuracy anyCAP™ Adjustable 200 mA Low Dropout Linear Regulator ADP3303A FEATURES High Accuracy Over Line and Load: ؎0.8% @ +25؇C, ؎1.4% Over Temperature Ultralow Dropout Voltage: 150 mV Typical @ 200 mA Requires Only CO = 1 ␮F for Stability anyCAP = Stable with All Types of Capacitors (Including MLCC) Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 1 ␮A 3.2 V to 12 V Supply Range Adjustable 2.2 V to 10 V Output Range –20؇C to +85؇C Ambient Temperature Range Thermally Enhanced TSSOP-14 Package APPLICATIONS Cellular Telephones Notebook, Palmtop Computers Battery Powered Systems Portable Instruments Post Regulator for Switching Supplies Bar Code Scanners FUNCTIONAL BLOCK DIAGRAM IN ERR SD Q2 Q1 THERMAL PROTECTION DRIVER ADP3303A CC gm BANDGAP REF OUT FB GND VIN C1 0.47␮F ERR ADP3303A IN OUT FB SD GND ON OFF R3 330k⍀ R1 EOUT VOUT = +5V C2 1␮F R2 SD Figure 1. Typical Application Circuit GENERAL DESCRIPTION The ADP3303A is a member of the ADP330x family of preci- sion low dropout anyCAP voltage regulators. The ADP3303A stands out from conventional LDOs with a novel architecture, an enhanced process and a new package. Its patented design requires only a 1 µF output capacitor for stability. This device is insensitive to output capacitor ESR (Equivalent Series Resis- tance), and is stable with any good quality capacitor, including ceramic types (MLCC) for space restricted applications. The ADP3303A achieves exceptional accuracy of ± 0.8% at room temperature and ± 1.4% overall accuracy over temperature, line and load variations. The dropout voltage of the ADP3303A is only 150 mV (typical) at 200 mA. In addition to the new architecture and process, ADI’s new proprietary thermally enhanced package (Thermal Coastline) can handle 1 W of power dissipation without an external heat sink or large copper surface on the PC board. This keeps PC board real estate to a minimum and makes the ADP3303A very attractive for use in portable equipment. The ADP3303A operates over an input voltage range of 3.2 V to 12 V and delivers a load current in excess of 200 mA. The output voltage can be adjusted from 2.2 V to 10 V using an external resistor divider. It also 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 fea- tures include shutdown and optional noise reduction capabilities. anyCAP is a trademark of Analog Devices Inc. REV. A 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., 1999 1 page 5.02 VOUT = +5V 5.01 5.00 4.99 25⍀, 1␮F LOAD 4.98 VIN 7.5 7.0 0 20 40 60 80 100 120 140 160 180 200 TIME – ␮s Figure 11. Line Transient Response 5.02 VOUT = +5V 5.01 5.00 4.99 5k⍀, 1␮F LOAD 4.98 VIN 7.5 7.0 0 40 80 120 160 200 240 280 320 360 400 TIME – ␮s Figure 12. Line Transient Response ADP3303A 3.310 3.305 VOUT = +3.3V 3.300 VOUT 3.295 3.290 200 CL = 1␮F I (VOUT) 10 0 200 400 600 800 1000 TIME – ␮s Figure 13. Load Transient for 10 mA to 200 mA Pulse 3.310 3.305 VOUT = +3.3V 3.300 VOUT 3.295 3.290 200 CL = 10␮F I (VOUT) 10 0 200 400 600 800 1000 TIME – ␮s Figure 14. Load Transient for 10 mA to 200 mA Pulse VIN = +7V 3.5 +3.3V VOUT 0 400 300 IOUT 200 100 0 0 12 3 45 TIME – sec Figure 15. Short Circuit Current VIN = +7V 4 CL = 1␮F, RL = 3.3k⍀ +3.3V VOUT 3 CL = 10␮F, RL = 16.5⍀ 2 CL = 10␮F, RL = 3.3k⍀ 1 0 5 SD 3 0 0 40 80 120 160 TIME – ␮s Figure 16. Turn On 200 4 C = 1␮F R = 16.5⍀ ON +3.3V OUTPUT 3 2 VOUT 1 0 5 VSD 0 0 10 20 30 40 TIME – ␮s Figure 17. Turn Off 50 0 –10 a. 1␮F, RL = 33k⍀ –20 b. 1␮F, RL = 16.5⍀ c. 10␮F, RL = 33k⍀ –30 d. 10␮F, RL = 16.5⍀ –40 –50 –60 –70 b d –80 VOUT = +3.3V b d a c –90 ac –100 10 100 1k 10k 100k FREQUENCY – Hz 1M 10M Figure 18. Power Supply Ripple Rejection 10 0.47␮F BYPASS PIN 7, 8 TO PIN3 VOUT = 5V, CL = 1␮F, IL = 1mA, CNR = 0 1.0 VOUT = 3.3V, CL = 1␮F, IL = 1mA, CNR = 0 0.1 VOUT = 2.2-5.0V, CL = 10␮F, IL = 1mA, CNR = 10nF 0.01 100 1k 10k FREQUENCY – Hz 100k Figure 19. Output Noise Density REV. A –5– 5 Page

Páginas	Total 8 Páginas
PDF Descargar	[ Datasheet ADP3303A.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
ADP3303	200 mA Low Dropout Linear Regulator	Analog Devices
ADP3303A	High Accuracy anyCAP Adjustable 200 mA Low Dropout Linear Regulator	Analog Devices

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar