SU1084

SU1084 5A Low Dropout Positive Elektronische Bauelemente RoHS Compliant Product Adjustable or Fixed-Mode Regulator Description The SU1084 is a low dropout at positive adjustable or fixed-mode regulator with min. of 5A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3V logic supply. SU1084 is also well suited for other applications such as VGA cards. SU1084 is guaranteed to have lower than 1.5V dropout at full load current making it ideal to provide well regulated outputs of 1.25V to 3.3V with 4.7 to 12V input supply. Features * 1.5V Max. Dropout At Full Load Current * Adjustable Output Voltage or Fixed 1.5V,1.8V,2.5V,3.3V,5.0V * Output Current Limiting * Good Noise Rejection * Fast Transient Response * Built-in Thermal Shutdown REF. A b L4 c L3 L1 E Millimeter REF. Min. Max. 4.40 4.80 c2 0.76 1.00 b2 0.00 0.30 B D 0.36 0.5 e 1.50 REF. L 2.29 2.79 9.80 10.4 L2 Millimeter Min. Max. 1.25 1.45 1.17 1.47 8.6 9.0 2.54 REF. 14.6 15.8 0˚ 8˚ 1.27 REF. Block Diagram Typical Circuit http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 1 of 4 SU1084 Elektronische Bauelemente 5A Low Dropout Positive Adjustable or Fixed-Mode Regulator Pin Descriptions Name Adj (GND) Vout O I/O PIN# 1 2 Adjustable (Gr ound only f or fixed mode) The output of the r egulator. A minimum of 10uF c apacitor must be c onnected fr om this pin to gr ound to insur e stability. The input pin of r egulator .Typic ally a large stor age c apacitor is c onnected fr om this pin to gr ound ge doss not sag below thh minimum dropout tvoltageeedduri g t e l ad e ot aa elow t e mi imum r r pou vltlt g to insur e that the input voltage doesnnotss ggbbelowthe eminnimumddoopoutvooaagduring ngthhelooad urin the load tr ansient r espons e .This pin must always be 1.5Vhhighr rthhanVVouinnorder foror rthheddeivic etoo or er the device to VV higher than Voutt ti inor dderf f o t e ev c e t ighee t an ou r egulate pr operly. FUNCTION Vin I 3 A b s o l u te M a x i m u m R a t i n g s Parameter DC Supply Voltage Power Dissipation Storage Temperature Range Operating Juction Temperature Range Symbol VIN PD TST TOP Ratings -0.3 to 12 Internally Limited -65~+150 0~+150 Unit V o o C C Electrical Characteristics Symbol VREF Parameter SU1084ADJ SU1084- 1.5 SU1084- 1.8 Output Voltage SU1084- 2.5 SU1084- 3.3 SU1084- 5.0 Line R egulation SU1084XXX SU1084ADJ SU1084- 1.5 Load R egulation SU1084- 1.8 SU1084- 2.5 SU1084- 3.3 SU1084- 5.0 Vo ILIM IMIN IADJ IQ Dr opout Voltage Curr ent Limit Minimum Load Cur r ent Adjust Pin C urr ent Quiesc ent C urr ent Temper atur e Stability JA JC Thermal R esistanc e Junction-to-Ambient( N o heat sink ;N o air flow) Thermal R esistanc e Junction-to-C as e Conditions( Notes) Io=10mA, Tj=25 : , (Vin- Vout ) =1.5V Io=10mA, Tj=25 : , 3.0V Vin 12V Io=10mA, Tj=25 : , 3.3V Vin 12V Io=10mA, Tj=25 : , 4.0V Vin 12V Io=10mA, Tj=25 : , 4.8V Vin 12V Io=10mA, Tj=25 : , 6.5V Vin 12V Io=10mA, Vout+1.5V