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| SG2002/A GENERAL DESCRIPTION The SG2002/A series low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input and deliver up to 300mA. They are the perfect choice for low voltage, low power applications. An ultra low ground current (110A at 300mA output) makes this part attractive for battery operated power systems. The SG2002/A series also offer ultra low dropout voltage (210mV at 300mA output) to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SG2002/A series' ultra low output noise (30VRMS). An external noise bypass capacitor connected to the device's BP pin can further reduce the noise level. The output voltage is preset to voltages in the range of 1.5V to 5.0V. Other features include a 10nA logic-controlled shutdown mode, foldback current limit and thermal shutdown protection. Devices come in 5-pin SOT23 package. 300mA, Low Power, Low Noise Low Dropout, Linear Regulators FEATURES - Low Output Noise: 30VRMS typ(10Hz to 100KHz) - Ultra-Low Dropout Voltage: 210mV at 300mA output - Low 77A No-Load Supply Current - Low 110A Operating Supply Current - at 300mA Output Thermal-Overload Protection Output Current Limit Preset Output Voltages (1.6% Accuracy) 10nA Logic-Controlled Shutdown Available in Multiple Output Voltage Versions Fixed Outputs of 1.5V, 1.8V, 2.5V, 2.8V, 2.85V, 3.0V,3.3V, and 5.0V Adjustable Output from 1.5V to 5.0V APPLICATIONS Cellular Telephones Cordless Telephones PHS Telephones PCMCIA Cards Modems MP3 Player Hand-Held Instruments Palmtop Computers Electronic Planners Portable/Battery-Powered Equipment PIN CONFIGURATIONSTOP VIEW SG2002/A IN 1 2 5 OUT GND EN 3 4 SOT23-5 BP/FB Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com REV. B ORDERING INFORMATION MODEL SG2002-1.5 SG2002-1.8 SG2002-2.5 SG2002-2.8 SG2002-2.85 SG2002-3.0 SG2002-3.3 SG2002-5.0 SG2002A VOUT(V) 1.5V 1.8V 2.5V 2.8V 2.85V 3.0V 3.3V 5.0V adjustable PINPACKAGE SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SPECIFIED TEMPERATURE RANGE ORDERING NUMBER SG2002-1.5XN5/TR SG2002-1.8XN5/TR SG2002-2.5XN5/TR SG2002-2.8XN5/TR SG2002-2.85XN5/TR SG2002-3.0XN5/TR SG2002-3.3XN5/TR SG2002-5.0XN5/TR SG2002-XN5/TR PACKAGE MARKING X215 X218 X225 X228 X22J X230 X233 X250 X2AA PACKAGE OPTION - 40C to +125C - 40C to +125C - 40C to +125C - 40C to +125C - 40C to +125C - 40C to +125C - 40C to +125C - 40C to +125C - 40C to +125C Tape and Reel, 3000 Tape and Reel, 3000 Tape and Reel, 3000 Tape and Reel, 3000 Tape and Reel, 3000 Tape and Reel, 3000 Tape and Reel, 3000 Tape and Reel, 3000 Tape and Reel, 3000 ABSOLUTE MAXIMUM RATINGS IN to GND.................................................................... - 0.3V to +6V Output Short-Circuit Duration ...........................................Infinite EN to GND.................................................................. - 0.3V to +6V OUT, BP/FB to GND......................................- 0.3V to (VIN + 0.3V) Power Dissipation, PD @ TA = 25 SOT23-5 .....................................................................................0.4W Package Thermal Resistance SOT23-5, JA....................................................................... 250/W Operating Temperature Range...........................- 40C to +125C Junction Temperature...........................................................+150C Storage Temperature.............................................- 65C to +150C Lead Temperature (soldering, 10s).......................................260C ESD Susceptibility HBM..........................................................................................7000V MM..............................................................................................400V Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. PIN DESCRIPTION PIN 1 2 3 4 4 5 NAME IN GND EN BP FB OUT FUNCTION Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1F capacitor to GND. Ground. Shutdown Input. A logic low reduces the supply current to 10nA. Connect to IN for normal operation. Reference-Noise Bypass(fixed voltage version only). Bypass with a low-leakage 0.01F ceramic capacitor for reduced noise at the output. Adjustable voltage version only--this is used to set the output voltage of the device. Regulator Output. SG2002/A ELECTRICAL CHARACTERISTICS (VIN = VOUT (NOMINAL) + 0.5V or 2.5V (whichever is greater), TA = - 40C to +125C, unless otherwise noted. Typical values are at TA = + 25C.) PARAMETER Input Voltage SYMBOL VIN IOUT = 0.1mA, VOUT 2.5V, TA = +25C IOUT = 0.1mA to 300mA, VOUT 2.5V TA = 0C to +70C Output Voltage Accuracy IOUT = 0.1mA to 300mA, VOUT 2.5V TA = - 40C to +125C IOUT = 0.1mA to 300mA, VOUT,2.5V TA = - 40C to +125C Maximum Output Current Current Limit Ground Pin Current ILIM IQ No load, EN = 2V IOUT = 300mA, EN = 2V Dropout Voltage (Note1) Line Regulation Load Regulation Output Voltage Noise Power Supply Rejection Rate SHUTDOWN EN Input Threshold EN Input Bias Current Shutdown Supply Current Shutdown Exit Delay(Note2) THERMAL PROTECTION Thermal Shutdown Temperature Thermal Shutdown Hysteresis TSHDN TSHDN 160 15 VIH VIL IB(SHDN) IQ(SHDN) VIN = 2.5V to 5.5V EN = 0V and EN = 5.5V EN = 0.4V CBP = 0.01F COUT = 1F, No load TA = +25C TA = +125C TA = +25C TA = +125C TA = +25C 2.0 0.4 0.01 0.01 0.01 0.01 30 1 1 V A A s VLNR VLDR IOUT = 1mA IOUT = 300mA VIN = 2.5V or (VOUT + 0.1V) to 5.5V, IOUT = 1mA IOUT = 0.1mA to 300mA, COUT = 1F f = 10Hz to 100KHz, CBP = 0.01F, COUT = 10F CBP = 0.1F, ILOAD = 50mA, COUT = 1F f = 100Hz, f = 1KHz, VOUT3.3V VOUT3.3V 300 310 750 77 77 110 0.8 210 0.004 0.0005 30 74 54 340 0.15 0.002 mV %/V %/mA VRMS dB dB 130 145 A CONDITIONS MIN 2.5 -1.6 TYP MAX 5.5 1.6 2.3 2.7 2.9 mA mA % UNITS V en PSRR Specifications subject to change without notice. Note 1: The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT for VIN = VOUT + 0.5V. (Only applicable for VOUT = +2.5V to +5.0V.) Note 2: Time needed for VOUT to reach 95% of final value. SG2002/A TYPICAL OPERATION CIRCUIT INPUT 2.5V TO 5.5V IN CIN 1F ON OFF OUT OUTPUT COUT 1F INPUT 2.5V TO 5.5V IN OUT OUTPUT SG2002A EN GND FB R1 CIN 1F ON OFF SG2002 EN GND BP COUT 1F R2 CBP 0.01F Adjustable Voltage Version Fixed Voltage Version Standard 1% Resistor Values for Common Output Voltages of Adjustable Voltage Version VOUT(V) 1.5 1.8 2.5 2.8 2.85 3.0 3.3 5.0 R1(k) 13 28 63.4 78.7 80.6 88.7 95.3 187 R2(k) 61.9 61.9 61.9 61.9 61.9 61.9 57.6 61.9 Note: VOUT = (R1 + R2)/ R2 x 1.2395 SG2002/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Ground Pin Current vs.Input Voltage 100 Ground Pin Current(A) 80 60 No Load 40 20 V OUT = 2.5V 0 0 1 2 3 4 Input Voltage(V) 5 6 I load = 50mA 350 300 Ground Pin Current(A) 250 200 150 100 50 0 0 Ground Pin Current vs.Input Voltage Iload = 50mA No Load VOUT = 5V 1 2 3 4 Input Voltage(V) 5 6 Output Voltage vs.Input Voltage 6 No Load 5 Output Voltage(V) 4 VOUT = 5V 3 2 VOUT = 2.5V 1 0 0 1 2 3 4 Input Voltage(V) 5 6 Output Voltage vs.Temperature 2.6 ILOAD = 150mA Output Voltage(V) 2.55 2.5 2.45 VOUT = 2.5V 2.4 -40 -20 0 20 40 60 80 Temperature() 100 120 140 Output Voltage vs.Temperature 5.2 Ground Pin Current(A) Ground Pin Current vs.Temperature 200 180 160 140 120 100 80 60 40 20 0 -40 -20 0 ILOAD = 150mA VOUT = 2.5V VOUT = 5V ILOAD = 150mA Output Voltage(V) 5.1 5 4.9 VOUT = 5V 4.8 -40 -20 0 20 40 60 80 Temperature() 100 120 140 20 40 60 80 Temperature() 100 120 140 SG2002/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Line-Transient Response 4.5V 3.5V ILOAD = 100mA 3.1V 3V 2.9V VOUT = 3V 100S/div VOUT VIN Load-Transient Response VIN = VOUT + 0.5V ILOAD = 0mA to 50mA 3.05V 3V 2.95V CIN = 1F VOUT 50mA 0mA VOUT = 3V 40S/div ILOAD Load-Transient Response Near Dropout 3.05V 3V 2.95V VOUT = 3V VOUT Shutdown Exit Delay 2V ILOAD = 50mA EN 0V CBP = 0.01F 50mA 0mA CIN = 1F VIN = VOUT + 0.1V ILOAD = 0mA to 50mA 40S/div ILOAD 2V 1V 0V 100S/div CBP = 0.1F VOUT = 2.5V VOUT Shutdown Exit Delay ILOAD = 50mA 2V 0V 4V 2V 0V 100S/div CBP = 0.1F VOUT = 5V 0V VOUT = 5V 2V Entering Shutdown No Load EN CBP = 0.01F VOUT VOUT 0V 5V EN 40S/div SG2002/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Output Noise Spectral Density vs.Frequency Output Noise vs.BP Capacitance 80 f = 10Hz to 100kHz COUT = 10F ILOAD = 10mA Output Noise Spectral Density (V/Hz) 10 CBP = 0.01F ILOAD = 10mA 1 70 Output Noise(VRMS) 60 50 40 30 20 10 VOUT = 5.0V VOUT = 3.0V COUT = 1F 0.1 VOUT = 2.5V COUT = 10F 0.1 1 10 100 1000 0.01 0.01 0 0.001 Frequency(kHz) 0.01 BP Capacitance(F) 0.1 Output Noise vs.Load Current 100 90 Output Noise(VRMS) 80 70 60 50 40 30 20 10 0 1 10 100 Load Current(mA) 1000 VOUT = 2.5V VOUT = 5.0V VOUT = 3.0V f = 10Hz to 100kHz CBP = 0.01F COUT = 10F Output Noise 10Hz To 100KHz VOUT = 3.0V COUT = 10F ILOAD = 10mA CBP = 0.1F VOUT(200V/div) Time(400s/div) Power-Supply Rejection Ratio vs.Frequency 80 70 60 PSRR(dB) 50 40 30 20 10 0 0.01 COUT = 1F COUT = 10F CBP = 0.1F ILOAD = 50mA 170 160 Ground Pin Current(A) 150 140 130 120 110 100 90 80 70 Ground Pin Current vs.Load Current VOUT = 5V VOUT = 2.5V 0.1 1 10 100 1000 0 Frequency(kHz) 100 200 Load Current(mA) 300 SG2002/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Output Voltage vs.Load Current 2.6 5 Output Voltage vs.Load Current Output Voltage(V) Output Voltage(V) 2.55 4.975 2.5 4.95 2.45 VOUT = 2.5V 2.4 0 100 200 Load Current(mA) 300 4.925 VOUT = 5V 4.9 0 100 200 Load Current(mA) 300 Dropout Voltage vs.Load Current 360 320 Dropout Voltage(mV) Dropout Voltage(mV) 220 200 180 160 140 120 100 80 60 40 20 0 0 Dropout Voltage vs.Load Current 280 240 200 160 120 80 40 0 0 30 60 TA = +125 TA = +125 TA = +85 TA = +25 TA = -40 TA = +85 TA = +25 TA = -40 VOUT = 2.5V 90 120 150 180 210 240 270 300 Load Current(mA) VOUT = 5V 30 60 90 120 150 180 210 240 270 300 Load Current(mA) Current limit vs.Temperature 1200 1100 Current limit(mA) 1000 VOUT = 3V Region of Stable COUT ESR vs.Load Current 100 10 COUT ESR() COUT = 10F 900 800 700 600 500 400 300 -40 -20 0 20 40 60 80 Temperature() 100 120 140 1 Stable Region 0.1 COUT = 1F 0.02 0.01 0 50 100 150 200 Load Current(mA) 250 300 SG2002/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Start Up EN Pin Voltage(V) Output Voltage(V) 6 4 2 0 2 1 0 VIN = 5V VOUT = 2.5V CIN = COUT = 1F ILOAD = 1mA Time(10s/div) Application Notes When LDO is used in handheld products, Attention must be paid to voltage spike which would damage SG2002. In such applications, voltage spike will be generated at changer interface and VBUS pin of USB interface when changer adapters and USB equipments are hot-inserted. Besides this, handheld products will be tested on the production line on the condition of no battery. Test Engineer will apply power from the connector pin which connects with positive pole of the battery. When external power supply is turned on suddenly, the voltage spike will be generated at the battery connector. The voltage spike will be very high, it always exceeds the absolute maximum input voltage (6.0V) of LDO. In order to get robust design. Design Engineer needs to clear up this voltage spike. Zener diode is a cheap and effective solution to eliminate such voltage spike. For example, BZM55B5V6 is a 5.6V small package Zener diode which can be used to remove voltage spike in cell phone design. The schematic is shown in below: Vcc Input BZM55B5V6 1uF C1 1 IN SG2002 EN 3 GND 2 BP/FP 4 VOUT 5 C2 4.7uF VOUT 0.01uF Control SG2002/A PACKAGE OUTLINE DIMENSIONS SOT23-5 D b L 0 0.20 Symbol A A1 Dimensions In Millimeters Min 1.050 0.000 1.050 0.300 0.100 2.820 1.500 2.650 1.800 0.300 0 Dimensions In Inches Min 0.041 0.000 0.041 0.012 0.004 0.111 0.059 0.104 0.071 0.012 0 Max 1.250 0.100 1.150 0.400 0.200 3.020 1.700 2.950 2.000 0.600 8 Max 0.049 0.004 0.045 0.016 0.008 0.119 0.067 0.116 0.079 0.024 8 E1 A2 b c E L e e1 A1 D C E E1 e e1 0.950TYP 0.700REF 0.037TYP 0.028REF A2 L L1 A SG2002/A REVISION HISTORY Location 9/05-- Data Sheet changed from preliminary to REV. A 12/06-- Data Sheet changed from REV. A to REV. B Changed to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Added Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Page Shengbang Microelectronics Co, Ltd Unit 3, ChuangYe Plaza No.5, TaiHu Northern Street, YingBin Road Centralized Industrial Park Harbin Development Zone Harbin, HeiLongJiang 150078 P.R. China Tel.: 86-451-84348461 Fax: 86-451-84308461 www.sg-micro.com SG2002/A |
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