SC1202 600mA Low Dropout Positive Voltage Regulator POWER MANAGEMENT Description Features 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. Low dropout performance, 1.3V 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 I/O supplies 5V to 3.3V conversion for memory, ASIC, custom circuits, etc. Typical Application Circuits Fixed Voltage Regulator U1 3 VIN > 4.75V + IN SC1202-3.3 2 TAB OUT VOUT = 3.3V + C1 10uF Tant. GND C2 10uF Tant. 1 Adjustable Voltage Regulator U1 3 VIN > 4.75V + C1 10uF Tant. IN SC1202 TAB OUT 2 VOUT = 3.45V R1 133 Ohm, 1% ADJ + C2 10uF Tant. 1 R2 232 Ohm, 1% R2 VOUT = VREF • 1 + + I ADJ • R 2 R1 Notes: (1) C1 needed if device is far from filter capacitors (2) C2 minimum value required for stability Revision: June 11, 2008 1 www.semtech.com SC1202 POWER MANAGEMENT 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 Symbol Maximum Units Input Voltage VIN 7 V Power Dissipation PD Internally Limited W Thermal Resistance, Junction to Case θJ C 15 °C/W Thermal Resistance, Junction to Ambient θJ A 156 °C/W Operating Ambient Temperature Range TA 0 to 70 °C Operating Junction Temperature Range TJ 0 to 125 °C Storage Temperature Range TSTG -65 to 150 °C Lead Temperature (Soldering) 10 seconds TLEAD 300 °C ESD Rating (Human Body Model) ESD 2 kV Electrical Characteristics Unless otherwise specified, Adj. VIN = 2.65 to 7V and Adj. IO = 10mA to 600mA; Fixed VIN = 4.75 to 7V and Fixed IO = 0mA to 600mA Parameter Output Voltage (1) Symbol VIN Io TJ(4) Min Typ Max Units VO 5V 0mA 25°C 3.265 3.300 3.335 V O.T. 3.230 3.300 3.369 25°C 1.238 1.250 1.262 O.T. 1.225 1.250 1.275 O.T. 0.035 0.2 % O.T. 0.2 0.4 % 1.2 1.3 V Fixed Voltage Option Reference Voltage (1) VREF 5V 10mA Adj. Voltage Version Line Regulation (1) REG(LINE) 10mA Load Regulation (1) REG(LOAD) Dropout Voltage ∆VOUT, ∆VREF = 1% VD O.T. Current Limit ICL O.T. Quiescent Current Fixed Voltage Version IQ Temperature Coefficient 5V mA O.T. 10 TC O.T. 0.005 Adjust Pin Current IADJ O.T. 55 90 µA Adjust Pin Current Change ∆IADJ O.T. 0.2 5.0 µA 2008 Semtech Corp. 5V 600 V 2 13 mA %/°C www.semtech.com SC1202 POWER MANAGEMENT Electrical Characteristics (Cont.) Unless otherwise specified, Adj. VIN = 2.65 to 7V and Adj. IO = 10mA to 600mA; Fixed VIN = 4.75 to 7V and Fixed IO = 0mA to 600mA Parameter Temperature Stability Minimum Load Current Adj. Voltage Version Symbol VIN Io TJ(4) TS IO(MIN) RMS Output Noise(2) VN Ripple Rejection Ratio(3) RA 5V 5V 600mA Min Typ Max Units O.T. 0.5 O.T 5 25°C 0.003 %VO 72 dB O.T. 60 % 10 mA NOTES: (1) Low duty cycle pulse testing with Kelvin connections required. (2) Bandwidth of 10 Hz to 10 kHz. (3) 120 Hz input ripple, (CADJ for ADJ = 25µF). (4) Over Temp. (O.T.) = over specified operating junction temperature range. 2008 Semtech Corp. 3 www.semtech.com SC1202 POWER MANAGEMENT Pin Configuration Ordering Information Device (1)(2) PIN FUNCTION SC1202CST-X.X.TR 1 ADJ/GND SC1202CST3.3TRT(3) 2 OUT SC1202CSX.XTRT(3) 3 IN VOUT (V) P ackag e 1.3 to 5.7 SOT-223 Notes: (1) Where X.X denotes voltage options. Available voltages are: 3.3V. Leave blank for adjustable version (see VOUT). 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. TAB IS OUTPUT Pin Descriptions Pin Number Pin Name 1 AD J GND 2 OUT 3 IN Pin Function 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. This is the power output of the device, and is electrically connected to the TAB. This is the input supply pin for the device. Block Diagram Marking Information 3.3V z.zz: Voltage option (example: 3.3V). Left blank for adjustable parts yyww: Datecode (example: 9812) xxxx: Semtech Lot # (example: 80101) 2008 Semtech Corp. 4 www.semtech.com SC1202 POWER MANAGEMENT Outline Drawing - SOT-223 b1 C B A bbb DIM N A E A A1 A2 b b1 c D E E1 e e1 L N 01 aaa bbb E1 1 e e1 B D DIMENSIONS MILLIMETERS INCHES MIN NOM MAX MIN NOM MAX .070 .004 .000 .059 .063 .067 .025 .033 .114 .124 .009 .014 .248 .256 .264 .264 .276 .287 .130 .138 .146 .090 BSC .181 BSC .030 4 0° 10° .003 .004 1.80 0.02 0.10 1.50 1.60 1.70 0.65 0.85 2.90 3.15 0.23 0.35 6.30 6.50 6.70 6.70 7.00 7.30 3.30 3.50 3.70 2.30 BSC 4.60 BSC 0.75 4 0° 10° 0.08 0.10 aaa C A2 A SEATING PLANE H C A1 c GAGE PLANE 3X b bbb C B A L 0.25 DETAIL SEE DETAIL A 01 A SIDE VIEW NOTES: 1. 2008 Semtech Corp. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). -B- TO BE DETERMINED AT DATUM PLANE -H- 2. DATUMS -A- AND 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 4. REFERENCE JEDEC STD TO-261, VARIATION AA. 5 www.semtech.com SC1202 POWER MANAGEMENT Land Pattern - SOT-223 X2 Y DIM Z C G X1 DIMENSIONS INCHES MILLIMETERS C G P1 P2 X1 X2 Y Z (.244) .157 .091 .181 .047 .138 .087 .331 (6.20) 4.00 2.30 4.60 1.20 3.50 2.20 8.40 Y P1 P2 NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A. Contact Information Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 2008 Semtech Corp. 6 www.semtech.com