SC mA Low Dropout Positive Voltage Regulator. POWER MANAGEMENT Description. Features. Applications. Typical Application Circuits

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1 Description The SC1202 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at full rated current. Additionally, the SC1202 series provides excellent regulation over variations due to line, load and temperature. Outstanding features include low dropout performance at rated current, fast transient response, internal current limiting and thermal shutdown protection of the output device. The SC1202 series are three terminal regulators available in the surface mount SOT-223 package. Typical Application Circuits SC mA Low Dropout Positive oltage Regulator Features Low dropout performance, 1.3 max. Full current rating over line and temperature Fast transient response ±2% total output regulation over line, load and temperature Adjust pin current max. 90µA over temperature Adjustable or fixed output voltages Line regulation 0.2% max. Load regulation 0.4% max. SOT-223 package. Fully WEEE and RoHS compliant Applications Low voltage microcontrollers Microprocessor /O supplies 5 to 3.3 conversion for memory, ASC, custom circuits, etc. Fixed oltage Regulator U1 SC N > 4.75 TAB 2 N OUT OUT = C1 GND + C2 1 Adjustable oltage Regulator U1 SC1202 N > N TAB OUT 2 OUT = C1 ADJ R1 133 Ohm, 1% + C2 1 R2 232 Ohm, 1% OUT = REF R R1 ADJ R2 Notes: 1) C1 needed if device is far from filter capacitors 2) C2 minimum value required for stability Revision: June 11,

2 Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied. Parameter nput oltage Unless otherwise specified, Adj. N = 2.65 to 7 and Adj. O = 10mA to 600mA; Fixed N = 4.75 to 7 and Fixed O = 0mA to 600mA Symbol Maximum Units N 7 Power Dissipation P D nternally Limited Thermal Thermal Resistance, Junction to Case Resistance, Junction to Ambient θ JC 15 C/ W θ JA 56 W 1 C/ W Operating Ambient Temperature Range T A 0 to 70 C Operating Junction Temperature Range T J 0 to 125 C Storage Temperature Range Lead Temperature Soldering) 10 seconds T EAD ESD Rating Human Body Model) Electrical Characteristics T STG 65 to 150 L 00 - C 3 C ESD 2 k Parameter Symbol N 4) o T J Mi n Typ Max Units 1) O utput oltage O 5 0mA 25 C F ixed oltage Option ) R eference oltage REF 5 10mA 25 C A dj. oltage ersion ) L ine Regulation 1) L oad Regulation R EG 0mA LNE ) R EG LOAD) % % Dropout oltage O UT, EF = 1 Current Limit R % D C L.T. O 600 ma Quiescent Current Fixed oltage ersion Q ma Temperature Coefficient T C %/ C Adjust Pin Current DJ.T. A O µ A Adjust Pin Current Change ADJ µ A 2008 Semtech Corp. 2

3 Electrical Characteristics Cont.) Unless otherwise specified, Adj. N = 2.65 to 7 and Adj. O = 10mA to 600mA; Fixed N = 4.75 to 7 and Fixed O = 0mA to 600mA Parameter Symbol N 4) o T J Mi n Temperature Stability T S 0. 5 % Typ Max Units Minimum Load Current Adj. oltage ersion OMN ) 5 O. T 5 10 ma 2) R MS Output Noise N 25 C ) R ipple Rejection Ratio R A 5 600mA db NOTES: 1) Low duty cycle pulse testing with Kelvin connections required. 2) Bandwidth of 10 Hz to 10 khz. 3) 120 Hz input ripple, C ADJ for ADJ = 25µF). 4) Over Temp. ) = over specified operating junction temperature range. % O 2008 Semtech Corp. 3

4 Pin Configuration Ordering nformation Pin Descriptions PN FUNCTO N 1 ADJ/GND 2 OUT 3 N TAB S OUTPUT 1)2) D evice SC1202CST-X.X.TR 3) S C1202CST3.3TRT 3) S C1202CSX.XTRT O UT ) Package 1.3 to 5.7 SOT-223 Notes: 1) Where X.X denotes voltage options. Available voltages are: 3.3. Leave blank for adjustable version see OUT ). Contact factory for additional voltage options. 2) Only available in tape and reel packaging. A reel contains 2500 devices. 3) This product is fully WEEE and RoHS compliant. Pin Number Pin Name Pin Function 1 ADJ GND This pin is the negative side of the reference voltage for the device. Transient response can be improved by adding a small bypass capacitor from the adjust pin to ground. This pin is the bottom end of the internal resistor feedback chain for fixed output voltage parts, and should be connected to ground. 2 O UT This is the power output of the device, and is electrically connected to the TAB. 3 N This is the input supply pin for the device. Block Diagram Marking nformation 3.3 z.zz: oltage option example: 3.3). Left blank for adjustable parts yyww: Datecode example: 9812) xxxx: Semtech Lot # example: 80101) 2008 Semtech Corp. 4

5 Outline Drawing - SOT-223 bbb E b1 C B A 1 B N e e1 D A E1 DMENSONS NCHES MLLMETERS DM MN NOM MAX MN NOM MAX A A A b b c D E E e.090 BSC 2.30 BSC e1.181 BSC 4.60 BSC L N aaa bbb aaa C SEATNG PLANE C A2 A A1 3X b bbb C B A GAGE PLANE 0.25 H L 01 DETAL A c 4. SDE EW REFERENCE JEDEC STD TO-261, ARATON AA. SEE DETAL A NOTES: 1. CONTROLLNG DMENSONS ARE N MLLMETERS ANGLES N DEGREES). 2. DATUMS -A- AND -B- TO BE DETERMNED AT DATUM PLANE -H- 3. DMENSONS "E1" AND "D" DO NOT NCLUDE MOLD FLASH, PROTRUSONS OR GATE BURRS Semtech Corp. 5

6 Land Pattern - SOT-223 X2 Y G X1 C Z DM DMENSONS NCHES MLLMETERS C.244) 6.20) G P P X X Y Z Y P1 P2 NOTES: 1. THS LAND PATTERN S FOR REFERENCE PURPOSES ONLY CONSULT YOUR MANUFACTURNG GROUP TO ENSURE YOUR COMPANY'S MANUFACTURNG GUDELNES ARE MET. 2. REFERENCE PC-SM-782A. Contact nformation Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA Phone: 805) FAX 805) Semtech Corp. 6