SY8032EABC

Ap pplications Noote: AN N_SY80 032E Hiigh Efficiiency 1M MHz, 2.5A A Contin nuous, 3A Peaak, Syncchronouss Step Doown Reg gulator Generral Descrription Feeatures The SY88032E is a high-efficiency h y, high frequuency synchronoous step-down DC-DC regullator IC capabble of deliveringg up to 2.5A output curreent. The SY80032E operates over o a wide innput voltage raange from 2.77V to 5.5V andd integrate maain switch and a synchroonous switch with w very loow RDS(ON) to t minimize the conduction loss. • Low outpput voltage rippple and smalll external induuctor and capaccitor sizes aree achieved wiith greater than 1MHz swiitching frequenncy. Orderring Infoormation n SY8032 □(□□)□ □ • • • • • Ap pplicationns Temperature Coode T P Package Code O Optional Spec Code C Orderinng Number SY80332EABC • • • Low L RDS(ON) foor internal swittches (top/bottom):100mΩ/80mΩ Ω,2.5A 2.7-5.5V 2 inputt voltage rangee 2.5A 2 continuous, 3A peak looad current cap pability High H switchingg frequency m minimizes the ex xternal components: c 1 1MHz CCM C only opeeration Internal I softstaart limits the innrush current 100% dropout operation RoHS R Compliant and Halogeen Free Compact C packkage: SOT23-6. Other packag ges are available a uponn requests • • • • • ① Note ---- Package type SOT23-6 LCD L TV Set Top Box Net N PC Mini-Noteboo M k PC Access A Point Router R Typiccal Applications ON/ OFF O EN VOU LX IN R1 CIN C1(op pt.) COUT FB GND R2 Efficiency (%) L VIN PG F Figure 1.Schem matic diagram SY8032E Rev. 0.9A A Figure 2. Efficiency E vs L Load Current Silerggy Corp. Coonfidential- Prepared P forr Customer U Use Only 1 AN N_SY8032E Pinou ut (top vieew) SOT23-6 Pin Name N EN N GN ND LX X IN N PG G FB B Top Mark: M MBxyzz (device code:: MB, x=year code, c y=week code, c z= lot nu umber code) Pinn Number Pin Descripption 1 E Enable control. Pull high to tu urn on. Do nott float. 2 G Ground pin 3 Innductor pin. Connect C this pin n to the switchiing node of indductor. 4 Innput pin. Decoouple this pin to GND pin wiith at least 10uF F ceramic cap.. 5 P Power good inddicator (Open drain d output). Low L if the outpput < 90% of reegulation voltaage; High otheerwise. Connecct a pull-up resiistor to the inp put. 6 O Output Feedbacck Pin. Connecct this pin to thhe center point of the output reesistor divider (as shown in Figure F 1) to prrogram the outpput voltage: V Vout=0.6*(1+R R1/R2). Absollute Maxximum Ratings R (N Note 1) Supply Innput Voltage --------------------------------------------------------------------------------------------------------------- -- 6.0V Enable, FB F Voltage ------------------------------------------------------------------------------------------------------------ VINN + 0.6V （ ） （ ） LX Voltagge ----------------------------------------------------------------------------------------------------------- - -0.3V *1 to 6V *2 Power Dissipation, PD @ TA = 25°C, S SOT23-6 -------------------------------------------------------------------------------------------------------------------- -- 0.6W Package Thermal T Resisttance (Note 2) θ JA ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------140°C/W 1 θ JC---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 70°C/W 7 Junction Temperature T R Range ------------------------------------------------------------------------------------------------------ 150°C Lead Tem mperature (Solddering, 10 sec.) ---------------------------------------------------------------------------------------- 260°C Storage Temperature T Range -------------------------------------------------------------------------------------------- 65°C to o 150°C (*1) LX Vooltage tested doown to -3V