|Category||Power Management => Regulators => Linear Regulators => LDO (Low Drop Out)|
|Description||High Accuracy AnyCAP® Adjustable 200 ma Low Dropout Linear Regulator|
|Datasheet||Download ADP3303AARU-Reel datasheet
High Accuracy anyCAPTM Adjustable 200 mA Low Dropout Linear Regulator ADP3303A
FEATURES High Accuracy Over Line and Load: +25C, 1.4% Over Temperature Ultralow Dropout Voltage: 150 mV Typical 200 mA Requires Only 1 F for Stability anyCAP = Stable with All Types of Capacitors (Including MLCC) Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 12 V Supply Range Adjustable 10 V Output Range +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
The is a member of the ADP330x family of precision 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 1 µF output capacitor for stability. This device is insensitive to output capacitor ESR (Equivalent Series Resistance), and is stable with any good quality capacitor, including ceramic types (MLCC) for space restricted applications. The ADP3303A achieves exceptional accuracy 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 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 12 V and delivers a load current in excess of 200 mA. The output voltage can be adjusted from 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 features include shutdown and optional noise reduction capabilities.
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
Conditions VIN = Nom VOUT = +25°C VIN = Nom VOUT 200 mA VIN = Nom VOUT 1.0 mA VIN 2.5 V, VOUT 1.0 mA VOUT of VO Nominal mA ON OFF V < VSD V @ VIN 12 V VSD = 0, VIN = +25°C VSD 0 V, VIN +25°C @ VIN +85°C @ VIN 12 V VEO 5 V ISINK 400 µA VIN = Nom VOUT 10 Hz100 kHz CNR = 0 CNR = 10 nF, 10 µFLINE REGULATION LOAD REGULATION GROUND CURRENT
SHUTDOWN THRESHOLD SHUTDOWN PIN INPUT CURRENT GROUND CURRENT IN5 SHUTDOWN MODE
OUTPUT CURRENT IN SHUTDOWN MODE ERROR PIN OUTPUT LEAKAGE ERROR PIN OUTPUT "LOW" VOLTAGE PEAK LOAD CURRENT OUTPUT NOISE 5 V OUTPUT
NOTES 1 Ambient temperature +85 °C corresponds to a typical junction temperature +125 °C under typical full load test conditions. The formula for Nom V OUT is found in the Output Voltage Selection section. 2 Accuracy guaranteed using external trim pots. 3 For 2.7 V output, the minimum V. 4 Guaranteed by design and characterization. 5 Ground currents include the current through R1, R2. Specifications subject to change without notice.
Input Supply Voltage. +16 V Shutdown Input Voltage. +16 V Error Flag Output Voltage. +16 V Noise Bypass Pin Voltage. +5 V Power Dissipation. Internally Limited Operating Ambient Temperature Range. to +125°C Operation Junction Temperature Range. to +125°C JA. 96°C/W Storage Temperature Range. to +150°C Lead Temperature Range (Soldering 10 sec). +300°C Vapor Phase (60 sec). +215°C Infrared (15 sec). +220°C
*This is a stress rating only; operation beyond these limits can cause the device to be permanently damaged.
Function No Connect. Output of the Regulator. Bypass to ground with µF or larger capacitor. Pins 4 and 5 must be connected together for proper operation. Feedback. Connect to an external resistor divider that sets the output voltage. Ground. Active Low Shutdown Pin. Connect to ground to disable the regulator output. When shutdown is not used, this pin should be connected to the input pin. Open Collector Output that goes low to indicate that the output is about to go out of regulation. Regulator Input. Pins 10 and 11 must be connected together for proper operation. No Connect.9 Comments High Accuracy High Accuracy Dual Output High Accuracy High Accuracy High Accuracy
NOTES 1 See individual data sheets for detailed ordering information. SO = Small Outline, SOT = Surface Mount Outline.Package Description Thin Shrink Small Outline Package (TSSOP)
NOTES All devices operate over the ambient temperature range to +85°C. Contact the factory for the availability of other output voltage options.
CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADP3303A features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
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