V OUT 3.3V. V REF =V OUT -V ADJ =1.25V (typ.) V OUT =V REF x (1+RF2/RF1)+ I ADJ x RF2 I ADJ =55µA (typ.)
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1 5A Low Dropout Positiv Rgulator FEATURES Dropout Voltag.V at 5A Output Currnt. Fast Transint Rspons. Extrmly Tight Lin and Load Rgulation. Currnt Limiting and Thrmal Protction. Adjustabl Output Voltag or Fixd.5V,.8V,.5V,.V. Standard -Pin Powr Packags. APPLICATIONS Mothr Board I/O Powr Supplis. Microprocssor Powr Supplis. High Currnt Rgulator. Post Rgulator for Switching Supply. DESCRIPTION Th AIC84 is a low dropout thr trminal rgulator with 5A output currnt capability. Th output voltag is adjustabl with th us of a rsistor dividr or fixd.5v,.8v,.5v and.v. Dropout voltag is guarantd to b at maximum of.4v with th maximum output currnt. Its low dropout voltag and fast transint rspons mak it idal for low voltag microprocssor applications. Currnt limit and thrmal protction provid protction against any ovrload condition that would crat xcssiv junction tmpraturs. TYPICAL APPLICATION CIRCUIT V IN 5V C µf AIC84 ADJ V REF RF 5Ω % RF 5Ω % V OUT.V C µf V REF =V OUT -V ADJ =.5V (typ.) V OUT =V REF x (RF/RF) I ADJ x RF I ADJ =55µA (typ.) () C ndd if dvic is far away from filtr capacitors. () C rquird for stability. Adjustabl Voltag Rgulator V IN 5V AIC84- V OUT.V C µf C µf GND Fixd Voltag Rgulator Analog Intgrations Corporation 4F, 9 Industry E. 9th Rd, Scinc-Basd Industrial Park, Hsinchu, Taiwan DS TEL: FAX:
2 ORDERING INFORMATION AIC84-XXCXXX PACKING TYPE TB: TUBE TR: TAPING & REEL PACKAGING TYPE E: TO-5 M: TO-6 T: TO- OUTPUT VOLTAGE DEFAULT: ADJUSTABLE 5:.5V 8:.8V 5:.5V :.V TO-5 TOP VIEW PIN CONFIGURATION : ADJ (GND) : VOUT (TAB) : VIN TO-6 TOP VIEW : ADJ (GND) : VOUT (TAB) : VIN TO- FRONT VIEW Exampl: AIC84-5CETR.5V vrsion in TO-5 Packag & Taping & Rl Packing Typ : ADJ (GND) : VOUT (TAB) : VIN ABSOLUTE MAXIMUM RATINGS VIN pin to ADJ/GND pin 7V Oprating Junction Tmpratur Rang C~ 5 C Storag Tmpratur Rang - 65 C ~ 5 C Thrmal Rsistanc Junction to Cas TO-5.5 C/W TO-6, TO- C /W Thrmal Rsistanc Junction to Ambint TO-5 C/W (Assum no ambint airflow, no hatsink) TO-6 6 C /W TO- 5 C /W Lad Tmpratur (Soldring) sc. 6 C
3 TEST CIRCUIT Rfr to TYPICAL APPLICATION CIRCUIT. ELECTRICAL CHARACTERISTICS (V IN =5V, T J =5 C, I O =ma, Unlss othrwis spcifid) PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNIT Rfrnc Voltag AIC84 (ADJ) T J =5 C V AIC84-5, V IN =5V Output Voltag AIC84-8, V IN =5V AIC84-5, V IN =5V V AIC84-, V IN =5V.6..4 ADJ :.65V V IN 7V Lin Rgulation V OUT =.5V Fix : V OUT.4V V IN 7V.5. % T J =5 C Load Rgulation ma < I O < 5A T J =5 C.6 % Dropout Voltag V OUT, V REF =% ma I O 5A..4 V C T J 5 C Currnt Limit C T J 5 C 5 6 A Adjustd Pin Currnt.65V V IN 7V 55 µa Adjustd Pin Currnt Chang.65V V IN 7V ( I ADJ ) C T J 5 C. 5 µa Tmpratur Stability I O =.5A C T J 5 C.5 % Minimum Load Currnt C T J 5 C 5 ma RMS Output Nois (% of V OUT ) Hz f KHz. % Rippl Rjction Ratio Hz input rippl C OUT =5µF (V IN -V OUT )=V 6 7 db
4 BLOCK DIAGRAM VIN Currnt Amp. VREF.5V 55µA GM - Thrmal Limit Currnt Limit VOUT For fixd voltag dvic ADJ GND PIN DESCRIPTIONS ADJ PIN - Providing V REF =.5V (typ.) for adjustabl V OUT. V REF =V OUT -V ADJ and I ADJ =55µA (typ.) GND PIN- Powr ground. VOUT PIN - Adjustabl output voltag. VIN PIN - Powr Input. TYPICAL PERFORMANCE CHARACTERISTICS.4 Output Voltag (V, AC) Load Currnt A.A VIN=5.V C IN=µF(Tantalum) COUT=µF(Tantalum) VOUT=.V Output Voltag (mv, AC) Input Voltag (V) C IN=µF (Tantalum) C OUT=µF (Tantalum) V OUT=.V Fig. Tim (µs) Load Transint Rspons Fig. Tim (µs) Lin Transint Rspons 4
5 TYPICAL PERFORMANCE CHARACTERISTICS (Continud) Minimum diffrntial Voltag (V) Minimum Oprating Currnt (ma) Fig. Output Currnt (A) Dropout Voltag (V OUT=.V) 4 5 Fig. 4 Diffrntial Voltag (V) Minimum Oprating Currnt 5 8 Minimum Oprating Currnt (ma) 4 Short Circuit Currnt (A) Fig. 5 Diffrntial Voltag (V) Minimum Oprating Currnt V IN -V OUT (V) Fig. 6 AIC84 (ADJ.) Short Circuit Currnt - Rippl Rjction Ratio (db) C OUT =µf C OUT =.µf C OUT =5µF Frquncy (Hz) Fig. 7 AIC84 (ADJ.) Rippl Rjction 5
6 PHYSICAL DIMENSIONS TO- (unit: mm) Φ.8±.7 E D F A SYMBOL MIN MAX A D E F.5.9 J.4.9 L L J TO-5 (unit: mm) E C SYMBOL MIN MAX b A A.9.8 A..7 b D H b C D E b A L.8 (TYP.) H L.5-6
7 TO-6 (unit: mm) E A SYMBOL MIN MAX A L C b.5. b.4.4 L D C -.7 c.4.4 L D E b b C.54 (TYP.) L L.8.8 L -.4 7
Analog Integrations Corporation 4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan DS-385B
Adjustabl Micropowr Voltag Rfrnc FEATURES Adjustabl from.v to.v. Oprating urrnt from µa to ma. Low Tmpratur officint. % and % Initial Tolranc. Low Dynamic Impdanc. APPLIATIONS Portabl, BattryPowrd Equipmnt.
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