PDF AIC1737 Data sheet ( Hoja de datos )

Número de pieza	AIC1737
Descripción	LOW OUTPUT VOLTAGE/ 300mA LOW DROPOUT LINEAR REGULATOR
Fabricantes	Analog Intergrations Corporation
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No Preview Available ! AIC1737 LOW OUTPUT VOLTAGE, 300mA LOW DROPOUT LINEAR REGULATOR SPEC NO: DS-1737-00 08/06/00 FEATURES z Low Dropout Voltage of 180mV at 100mA Output Current (3.0V Output Version). z Guaranteed 300mA Output Current. z Internal 1.3Ω P-MOSFET Draws no Base Current. z Low Ground Current at 55µA. z 2% Accuracy Output Voltage of 1.8V/ 2.0V/ 2.5V/ 2.7V/ 3.0V. z Input Voltage Range up to 12V. z Needs only 1µF for Stability. z Current and Thermal Limiting. APPLICATIONS z Voltage Regulator for CD-ROM Drivers. z Voltage Regulator for LAN Cards. z Voltage Regulator for Microprocessor. z Wireless Communication Systems. z Battery Powered Systems. DESCRIPTION The AIC1737 is a 3-pin low dropout linear regulator. The superior characteristics of the AIC1737 include zero base current loss, very low dropout voltage, and 2% accuracy output voltage. Typical ground current remains approximately 55 µA, from no load to maximum loading conditions. Dropout voltage is exceptionally low. Output current limiting and thermal limiting are built in to provide maximal protection to the AIC1737 against fault conditions. The AIC1737 comes in the popular 3-pin SOT-89 packages. TYPICAL APPLICATION CIRCUIT VIN VIN AIC1737 VOUT VOUT + 1µF CIN GND + 10µF COUT Low Dropout Linear Regulator ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 1 1 page AIC1737 LOW OUTPUT VOLTAGE, 300mA LOW DROPOUT LINEAR REGULATOR SPEC NO: DS-1737-00 08/06/00 PIN DESCRIPTION VOUT PIN - Output pin. GND PIN - Power GND. VIN PIN - Power Supply Input. APPLICATION INFORMATIONS A 1µF (or greater) capacitor is required between the AIC1737 output and ground for stability. Without this capacitor the part will oscillate. Even though most types of capacitor may work, the equivalent series resistance (ESR) should be held to 5Ω or less if Aluminum electrolytic type is used. Many Aluminum electrolytics have electrolytes that freeze at about -30°C, so solid tantalums are recommended for operation below -25°C. The value of this capacitor may be increased without limit. A 0.1µF capacitor (or greater) should be placed from the AIC1737 input to ground if the lead inductance between the input and power source exceeds 500nH (approximately 10 inches of trace). PHYSICAL DIMENSIONS z SOT-89 (unit: mm) D D1 H L e e1 SOT-89 MARKING Part No. AIC1737-18 AIC1737-20 AIC1737-25 AIC1737-27 AIC1737-30 Marking BM18 BM20 BM25 BM27 BM30 E B SYMBOL MIN A A 1.40 C B 0.36 MAX 1.60 0.48 C 0.35 0.44 D 4.40 4.60 D1 1.62 1.83 E 2.29 2.60 e 1.50 (TYP.) e1 3.00 (TYP.) H 3.94 4.25 L 0.89 1.20 ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 5 5 Page

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