SG2003-2.5

SG2003/A SG2004/A GENERAL DESCRIPTION The SG2003/A and SG2004/A low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input and deliver up to 400mA (400mA peak SG2003 only). They are the perfect choice for low voltage, low power applications. An ultra low ground current (120µA at 400mA output) make them attractive for battery operated power systems. The SG2003/A and SG2004/A series also offer ultra low dropout voltage (280mV at 400mA output) to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SG2003/A and SG2004/A series’ ultra low output noise (30µVRMS). 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 4.5V. Other features include a 10nA logic-controlled shutdown mode, foldback current limit and thermal shut-down protection. SG2003/A comes in 5-pin SOT23 package and SG2004/A comes in 8-pin SO package. 400mA, Low Power, Low Noise, Low Dropout, Linear Regulators FEATURES - Low Output Noise: 30µVRMS typ(10Hz to 100KHz) - Ultra-Low Dropout Voltage: - 280mV at 400mA output Low 77µA No-Load Supply Current Low 120µA Operating Supply Current at 400mA 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 2.5V, 2.8V, 2.85V, 3.0V, and 3.3V Adjustable Output from 1.5V to 4.5V PIN CONFIGURATIONS（TOP VIEW） SG2003/A IN GND 1 2 3 SOT23-5 4 BP/FB 5 OUT APPLICATIONS Cellular Telephones Cordless Telephones PHS Telephones PCMCIA Cards Modems MP3 Players Hand-Held Instruments Palmtop Computers Electronic Planners Portable/Battery-Powered Equipment EN SG2004/A EN IN OUT BP/FB 1 8 GND GND GND GND 2 7 3 6 4 5 SO-8 Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com REV. B ORDERING INFORMATION MODEL VOUT(V) PINPACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SG2003-2.5 SG2003-2.8 SG2003-2.85 SG2003-3.0 SG2003-3.3 SG2003A SG2004-2.5 SG2004-2.8 SG2004-2.85 SG2004-3.0 SG2004-3.3 SG2004A 2.5V 2.8V 2.85V 3.0V 3.3V adjustable 2.5V 2.8V 2.85V 3.0V 3.3V adjustable SO-8 SOT23-5 - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C SG2003-2.5XN5/TR SG2003-2.8XN5/TR SG2003-2.85XN5/TR SG2003-3.0XN5/TR SG2003-3.3XN5/TR SG2003-XN5/TR SG2004-2.5XS/TR SG2004-2.8XS/TR SG2004-2.85XS/TR SG2004-3.0XS/TR SG2004-3.3XS/TR SG2004-XS/TR X325 X328 X32J X330 X333 X3AA SG2004-2.5XS SG2004-2.8XS SG2004-2.85XS SG2004-3.0XS SG2004-3.3XS SG2004-XS 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, 2500 Tape and Reel, 2500 Tape and Reel, 2500 Tape and Reel, 2500 Tape and Reel, 2500 Tape and Reel, 2500 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 SO-8 ........................................................................................0.625W Package Thermal Resistance SOT23-5, θJA....................................................................... 250℃/W SO-8, θJA....................................................................160°C/W Operating Temperature Range.................- 40°C to +125°C Junction Temperature................................................+150°C Storage Temperature.................................- 65°C to +150°C Lead Temperature (soldering, 10s).......................................260°C 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. ２ SG2003/A SG2004/A ELECTRICAL CHARACTERISTICS (VIN = VOUT (NOMINAL) +1V, TA = - 40°C to +125°C, unless otherwise noted. Typical values are at TA = + 25°C.) PARAMETER Input Voltage SYMBOL VIN IOUT = 0.1mA, VOUT ≥2.5V, TA = +25°C IOUT = 0.1mA to 400mA, VOUT ≥2.5V TA = 0°C to +70°C Output Voltage Accuracy IOUT = 0.1mA to 400mA, VOUT ≥2.5V TA = - 40°C to +125°C IOUT = 0.1mA to 400mA, VOUT,＜2.5V TA = - 40°C to +125°C Output Current Current Limit Ground Pin Current SG2003 SG2004 ILIM IQ No load, EN = 2V IOUT = 400mA, EN = 2V Dropout Voltage(Note2) 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(Note3) THERMAL PROTECTION Thermal Shutdown Temperature Thermal Shutdown Hysteresis TSHDN ΔTSHDN 160 15 ℃ ℃ VIH VIL IB(SHDN) IQ(SHDN) VIN = 2.5V to 5.5V EN = 0V and EN = 5.5V EN = 0.4V CBP = 0.01µF COUT = 1µF, no load TA = +25°C TA = +125°C TA = +25°C TA = +125°C TA = +25°C 2.0 0.4 0.01 0.01 0.01 0.01 30 1 1 V µA µA µs ΔVLNR ΔVLDR IOUT = 1mA IOUT = 400mA VIN = 2.5V or (VOUT + 0.1V) to 5.5V, IOUT = 1mA IOUT = 0.1mA to 400mA, COUT = 1µF f = 10Hz to 100KHz, CBP = 0.01µF CBP = 0.1µF, ILOAD = 50mA, COUT = 1µF COUT = 10µF f = 100Hz, f = 1KHz, VOUT≤3.3V VOUT＞3.3V 400 410 750 77 77 120 0.8 280 0.004 0.0005 30 74 54 440 0.15 0.002 mV %/V %/mA µVRMS dB dB 130 145 µA CONDITIONS MIN 2.5 -1.6 TYP MAX 5.5 1.6 2.5 2.9 3.1 400 (Note1) UNITS V % mA mA mA en PSRR Specifications subject to change without notice. Note 1: SG2003 series’ output current is 400mA peak. Note 2: The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT for VIN = VOUT + 1V. (Only applicable for VOUT = +2.5V to +4.5V) Note 3: Time needed for VOUT to reach 95% of final value. ３ SG2003/A SG2004/A TYPICAL OPERATION CIRCUIT INPUT 2.5V TO 5.5V IN CIN 1μF ON OFF OUT OUTPUT COUT 1μF ON INPUT 2.5V TO 5.5V IN CIN 1μF OUT OUTPUT SG2003A SG2004A EN GND FB R1 SG2003 SG2004 EN GND BP COUT 1μF OFF CBP 0.01μF R2 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 R1(kΩ) 13 28 63.4 78.7 80.6 88.7 95.3 R2(kΩ) 61.9 61.9 61.9 61.9 61.9 61.9 57.6 Note: VOUT = (R1 + R2)/ R2 × 1.2395 PIN DESCRIPTION NAME IN GND EN BP FB OUT SOT23-5 PIN 1 2 3 4 4 5 SO-8 PIN 2 5,6,7,8 1 4 4 3 FUNCTION Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1µF 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 0.01µF 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. ４ SG2003/A SG2004/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Ground Pin Current vs.Input Voltage 100 80 60 No Load 40 20 VOUT = 2.5V 0 0 1 2 3 4 Input Voltage(V) 5 6 0 0 200 Ground Pin Current vs.Input Voltage Ground Pin Current(µA) Ground Pin Current(µA) Iload = 50mA 150 Iload = 50mA 100 50 No Load VOUT = 3.3V 1 2 3 4 Input Voltage(V) 5 6 Output Voltage vs.Input Voltage 6 No Load 5 4 VOUT = 3.3V 3 2 VOUT = 2.5V 1 0 0 1 2 3 4 Input Voltage(V) 5 6 Ground Pin Current vs.Load Current 190 180 170 160 150 140 130 120 110 100 90 80 70 60 0 100 Ground Current(µA) Output Voltage(V) VOUT = 3.3V VOUT = 2.5V 200 300 Load Current(mA) 400 Output Voltage vs.Load Current 2.6 3.35 Output Vlotage vs.Load Current Output Voltage(V) Output Voltage(V) 2.55 3.325 2.5 3.3 2.45 VOUT = 2.5V 2.4 0 100 200 300 Load Current(mA) 400 3.275 VOUT = 3.3V 3.25 0 100 200 300 Load Current(mA) 400 ５ SG2003/A SG2004/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Line-Transient Response 4.5V 3.5V ILOAD = 150mA 3.1V 3V 2.9V VOUT 50mA 0mA ILOAD VOUT = 3V 40µS/div Load-Transient Response VIN = VOUT + 0.5V VIN ILOAD = 0mA to 50mA 3.05V 3V 2.95V CIN = 1μF VOUT VOUT = 3V 100µS/div Load-Transient Response Near Dropout 3.05V 3V 2.95V VOUT = 3V VOUT Shutdown Exit Delay 2V ILOAD = 50mA EN 0V CBP = 0.01µF 50mA 0mA CIN = 1μF VIN = VOUT + 0.1V ILOAD = 0mA to 50mA 40µS/div ILOAD 2V 1V 0V 100µS/div CBP = 0.1µF VOUT = 2.5V VOUT Shutdown Exit Delay ILOAD = 50mA 2V 0V CBP = 0.01µF EN Entering Shutdown No Load EN 2V 0V 3.3V 3.3 CBP = 0.1µF 0V VOUT = 3.3V 100µS/div VOUT VOUT 0V VOUT = 3.3V 100µS/div ６ SG2003/A SG2004/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Output Noise Spectral Density vs.Frequency Output Noise vs.BP Capacitance 80 70 Output Noise(µVRMS) 60 50 40 30 20 10 VOUT = 2.5V VOUT = 3.0V f = 10Hz to 100kHz COUT = 10μF ILOAD = 10mA Output Noise Spectral Density (μV/√Hz) 10 CBP = 0.01μF ILOAD = 10mA 1 COUT = 1μF 0.1 COUT = 10μF 0.1 1 10 100 1000 0.01 0.01 0 0.001 Frequency(kHz) 0.01 BP Capacitance(µF) 0.1 Output Noise vs.Load Current 100 90 Output Noise(µVRMS) 80 70 60 50 40 30 20 10 0 1 10 100 1000 Load Current(mA) VOUT = 2.5V VOUT = 3.0V f = 10Hz to 100kHz CBP = 0.01μF COUT = 10μF Output Noise 10Hz To 100KHz VOUT = 3.3V COUT = 10μF ILOAD = 10mA CBP = 0.1μF VOUT(200μV/div) Time(200μs/div) Power-Supply Rejection Ratio vs.Frequency 80 70 60 COUT ESR(Ω) 100 Region of Stable COUT ESR vs.Load Current CBP = 0.1μF ILOAD = 50mA 10 COUT = 10μF PSRR(dB) 50 40 30 20 10 0 0.01 COUT = 1μF COUT = 10μF 1 Stable Region 0.1 COUT = 1μF 0.02 0.01 0.1 1 10 100 1000 0 100 Frequency(kHz) 200 Load Current(mA) 300 400 ７ SG2003/A SG2004/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Current limit vs.Temperature 1200 1100 Current limit(mA) 1000 900 800 700 600 500 400 300 -40 -20 0 20 40 60 80 Temperature(℃) 100 120 140 VOUT = 3.3V Output Voltage vs.Temperature 2.6 ILOAD = 300mA 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 3.4 Ground Pin Current(μA) 200 180 160 140 120 100 80 60 40 Ground Pin Current vs.Temperature ILOAD = 300mA Output Voltage(V) 3.35 VOUT = 3.3V 3.3 VOUT = 2.5V 3.25 VOUT = 3.3V 3.2 -40 -20 0 20 40 60 80 100 120 140 Temperature(℃) ILOAD = 300mA -40 -20 0 20 40 60 80 Temperature(℃) 100 120 140 Dropout Voltage vs.Load Current 600 500 Dropout Voltage(mV) Dropout Voltage(mV) TA = +125℃ Dropout Voltage vs.Load Current 600 500 400 300 200 100 TA = +85℃ TA = +25℃ TA = -40℃ 400 300 200 100 TA = +25℃ TA = -40℃ TA = +125℃ TA = +85℃ VOUT = 2.5V 0 0 50 100 150 200 250 300 350 400 Load Current(mA) 0 0 50 100 150 200 250 VOUT = 3.3V 300 350 400 Load Current(mA) ８ SG2003/A SG2004/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, 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 = 1μF ILOAD = 1mA Time(10μs/div) Application Notes When LDO is used in handheld products, Attention must be paid to voltage spike which would damage SG2003 and SG2004. 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 IN SG2003/SG2004 EN GND BP/FP VOUT C2 4.7uF VOUT 0.01uF Control ９ SG2003/A SG2004/A PACKAGE OUTLINE DIMENSIONS SOT23-5 D b L 0 θ 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 θ A １０ SG2003/A SG2004/A PACKAGE OUTLINE DIMENSIONS SO-8 D C Symbol L Dimensions In Millimeters Min Max 1.750 0.250 1.550 0.510 0.250 5.000 4.000 6.300 1.270 8° 1.350 0.100 1.350 0.330 0.190 4.780 3.800 5.800 0.400 0° Dimensions In Inches Min 0.053 0.004 0.053 0.013 0.007 0.188 0.150 0.228 0.016 0° Max 0.069 0.010 0.061 0.020 0.010 0.197 0.157 0.248 0.050 8° A A1 E1 E A2 B C D e θ E E1 e A1 1.270TYP 0.050TYP B A2 L θ A １１ SG2003/A SG2004/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 １２ SG2003/A SG2004/A