SG2001/A 150mA, Low Power, Low Noise, Low Dropout, Linear Regulators GENERAL DESCRIPTION FEATURES The SG2001/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 150mA. They are the perfect choice for low voltage, low power applications. An ultra low ground current (100µA at 150mA output) makes these parts attractive for battery operated power systems. The SG2001/A series also offer ultra low dropout voltage (105mV at 150mA output) to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SG2001/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. - Low Output Noise: 30µVRMS typ(10Hz to 100KHz) - Ultra-Low Dropout Voltage: The output voltage is preset to voltages in the range of 1.2V to 5.0V. Other features include a 10nA logic-controlled shutdown mode, foldback current limit and thermal shutdown protection. 105mV at 150mA output - Low 77µA No-Load Supply Current - Low 100µA Operating Supply Current - at 150mA 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 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 3.6V, and 5.0V Adjustable Output from 1.5V to 5.0V Devices come in 5-pin SOT23 package. PIN CONFIGURATIONS（TOP VIEW） SG2001/A APPLICATIONS Cellular Telephones Cordless Telephones PHS Telephones PCMCIA Cards Modems MP3 Player Hand-Held Instruments Palmtop Computers Electronic Planners Portable/Battery-Powered Equipment Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com IN 1 GND 2 EN 3 5 OUT 4 BP/FB SOT23-5 REV. B ORDERING INFORMATION MODEL VOUT(V) PINPACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SG2001-1.2 1.2V SOT23-5 - 40°C to +125°C SG2001-1.2XN5/TR X112 Tape and Reel, 3000 SG2001-1.5 1.5V SOT23-5 - 40°C to +125°C SG2001-1.5XN5/TR X115 Tape and Reel, 3000 SG2001-1.8 1.8V SOT23-5 - 40°C to +125°C SG2001-1.8XN5/TR X118 Tape and Reel, 3000 SG2001-2.5 2.5V SOT23-5 - 40°C to +125°C SG2001-2.5XN5/TR X125 Tape and Reel, 3000 SG2001-2.8 2.8V SOT23-5 - 40°C to +125°C SG2001-2.8XN5/TR X128 Tape and Reel, 3000 SG2001-2.85 2.85V SOT23-5 - 40°C to +125°C SG2001-2.85XN5/TR X12J Tape and Reel, 3000 SG2001-3.0 3.0V SOT23-5 - 40°C to +125°C SG2001-3.0XN5/TR X130 Tape and Reel, 3000 SG2001-3.3 3.3V SOT23-5 - 40°C to +125°C SG2001-3.3XN5/TR X133 Tape and Reel, 3000 SG2001-3.6 3.6V SOT23-5 - 40°C to +125°C SG2001-3.6XN5/TR X136 Tape and Reel, 3000 SG2001-5.0 5.0V SOT23-5 - 40°C to +125°C SG2001-5.0XN5/TR X150 Tape and Reel, 3000 SG2001A adjustable SOT23-5 - 40°C to +125°C SG2001-XN5/TR X1AA Tape and Reel, 3000 ABSOLUTE MAXIMUM RATINGS 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 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, θJA....................................................................... 250℃/W 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 NAME FUNCTION 1 IN 2 GND 3 EN Shutdown Input. A logic low reduces the supply current to 10nA. Connect to IN for normal operation. 4 BP Reference-Noise Bypass (fixed voltage version only). Bypass with a low-leakage 0.01µF ceramic capacitor for reduced noise at the output. 4 FB Adjustable voltage version only—this is used to set the output voltage of the device. 5 OUT Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1µF capacitor to GND. Ground. Regulator Output. 2 SG2001/A ELECTRICAL CHARACTERISTICS (VIN = VOUT (NOMINAL) + 0.5V or 2.5V (whichever is greater), TA = - 40°C to +125°C, unless otherwise noted. Typical values are at TA = + 25°C.) PARAMETER Input Voltage SYMBOL CONDITIONS VIN IOUT = 0.1mA, VOUT ≥2.5V, TA = +25°C MIN TYP MAX UNITS 2.5 5.5 V -1.6 1.6 IOUT = 0.1mA to 150mA, VOUT ≥2.5V 2 TA = 0°C to +70°C IOUT = 0.1mA to 150mA, VOUT ≥2.5V Output Voltage Accuracy 2.4 TA = - 40°C to +125°C IOUT = 0.1mA to 150mA, 1.5V≤VOUT＜2.5V 2.6 TA = - 40°C to +125°C IOUT = 0.1mA to 150mA, VOUT =1.2V TA = +25°C Maximum Output Current Current Limit Ground Pin Current ILIM IQ Line Regulation ΔVLNR Load Regulation ΔVLDR Power Supply Rejection Rate 2 6 150 Dropout Voltage(Note1) Output Voltage Noise % en PSRR 160 No load, EN = 2V mA 600 mA VOUT≤3.3V 77 130 VOUT＞3.3V 77 145 µA IOUT = 150mA, EN = 2V 100 IOUT = 1mA 0.8 IOUT = 150mA 105 170 0.004 0.15 %/V 0.0005 0.002 %/mA VIN = 2.5V or (VOUT + 0.1V) to 5.5V, IOUT = 1mA IOUT = 0.1mA to 150mA, COUT = 1µF f = 10Hz to 100KHz, CBP = 0.01µF, mV 30 µVRMS CBP = 0.1µF, ILOAD = 50mA, f = 100Hz 74 dB f = 1KHz 54 dB COUT = 10µF COUT = 1µF SHUTDOWN EN Input Threshold VIH VIL 2.0 VIN = 2.5V to 5.5V EN Input Bias Current IB(SHDN) EN = 0V and EN = 5.5V Shutdown Supply Current IQ(SHDN) EN = 0.4V V 0.4 TA = +25°C 0.01 TA = +125°C 0.01 1 TA = +25°C 0.01 TA = +125°C 0.01 TA = +25°C 30 µs TSHDN 160 ℃ ΔTSHDN 15 ℃ CBP = 0.01µF Shutdown Exit Delay(Note2) COUT = 1µF, No load 1 µA µA THERMAL PROTECTION Thermal Shutdown Temperature Thermal Shutdown Hysteresis 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. ３ SG2001/A TYPICAL OPERATION CIRCUIT INPUT 2.5V TO 5.5V OUT IN CIN 1μF ON OFF INPUT 2.5V TO 5.5V OUTPUT OUT IN R1 SG2001A COUT 1μF CIN 1μF ON FB EN OUTPUT OFF GND R2 SG2001 BP EN GND Adjustable Voltage Version COUT 1μF CBP 0.01μF 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(kΩ) 13 28 63.4 78.7 80.6 88.7 95.3 187 R2(kΩ) 61.9 61.9 61.9 61.9 61.9 61.9 57.6 61.9 Note: VOUT = (R1 + R2)/ R2 × 1.2395 ４ SG2001/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Output Voltage vs.Load Current 5.05 2.55 5.025 Output Voltage(V) Output Voltage(V) Output Voltage vs.Load Current 2.6 2.5 2.45 5 4.975 VOUT = 2.5V VOUT = 5V 4.95 2.4 0 50 100 Load Current(mA) 0 150 50 100 Load Current(mA) Ground Pin Current vs.Input Voltage 100 VOUT = 5V VOUT = 2.5V Iload = 50mA 80 Ground Pin Current(µA) Ground Pin Current(µA) Ground Pin Current vs.Load Current 125 120 115 110 105 100 95 90 85 80 75 70 65 60 150 60 No Load 40 20 VOUT = 2.5V 0 0 50 100 Load Current(mA) 150 0 1 2 3 4 Input Voltage(V) 5 6 Output Voltage vs.Input Voltage Ground Pin Current vs.Input Voltage 350 6 300 5 Iload = 50mA Output Voltage(V) Ground Pin Current(µA) No Load 250 200 150 No Load 100 4 VOUT = 5V 3 2 VOUT = 2.5V 1 50 VOUT = 5V 0 0 0 1 2 3 4 Input Voltage(V) 5 0 6 ５ 1 2 3 4 Input Voltage(V) 5 6 SG2001/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Output Voltage vs.Temperature Output Voltage vs.Temperature 2.6 5.2 ILOAD = 50mA Output Voltage(V) 2.55 2.5 2.45 5.1 5 4.9 VOUT = 5V VOUT = 2.5V 2.4 4.8 -40 -20 0 20 40 60 80 Temperature(℃) 100 120 140 -40 -20 180 140 160 Dropout Voltage(mV) Ground Pin Current(μA) 160 120 VOUT = 5V 100 80 VOUT = 2.5V 60 40 ILOAD = 50mA 20 0 20 40 60 80 Temperature(℃) 100 120 140 Dropout Voltage vs.Load Current Ground Pin Current vs.Temperature 140 TA = +125℃ 120 TA = +85℃ 100 TA = +25℃ 80 TA = -40℃ 60 40 20 VOUT = 2.5V 0 0 -40 -20 0 0 20 40 60 80 100 120 140 160 Temperature(℃) 20 40 60 80 100 VOUT = 2.5V 1100 Current limit(mA) TA = +125℃ TA = +85℃ 80 TA = +25℃ 60 TA = -40℃ 40 20 160 1200 140 100 140 Current limit vs.Temperature Dropout Voltage vs.Load Current 120 120 Load Current(mA) 160 Dropout Voltage(mV) Output Voltage(V) ILOAD = 50mA 1000 900 800 700 600 500 400 VOUT = 5V 300 0 0 20 40 60 80 100 120 Load Current(mA) 140 -40 -20 160 ６ 0 20 40 60 80 Temperature(℃) 100 120 140 SG2001/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Load-Transient Response Line-Transient Response VIN = VOUT + 0.5V 4.5V ILOAD = 0mA to 50mA VIN 3.5V CIN = 1μF 3.05V 3V 2.95V ILOAD = 50mA VOUT 3.1V VOUT 3V 50mA 2.9V 0mA ILOAD VOUT = 3V VOUT = 3V 40µS/div 100µS/div Shutdown Exit Delay Load-Transient Response Near Dropout 3.05V VOUT = 3V 2V 3V ILOAD = 50mA VOUT EN 2.95V 0V CBP = 0.01µF 50mA ILOAD 0mA 1V CBP = 0.1µF 0V ILOAD = 0mA to 50mA VOUT = 2.5V 40µS/div 100µS/div Shutdown Exit Delay Entering Shutdown ILOAD = 50mA No Load 2V EN 2V 0V VOUT 2V CIN = 1μF VIN = VOUT + 0.1V EN 0V CBP = 0.01µF 5V VOUT 4V 2V VOUT CBP = 0.1µF VOUT = 5V 0V 0V 100µS/div VOUT = 5V 40µS/div ７ SG2001/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. Output Noise Spectral Density vs.Frequency Power-Supply Rejection Ratio vs.Frequency 80 Output Noise Spectral Density (μV/√Hz) 10 CBP = 0.1μF ILOAD = 50mA 70 PSRR(dB) 60 50 COUT = 10μF 40 30 CBP = 0.01μF ILOAD = 10mA 1 COUT = 1μF 0.1 20 COUT = 1μF 10 0 0.01 0.1 1 10 100 COUT = 10μF 0.01 0.01 1000 0.1 100 1000 100 80 f = 10Hz to 100kHz COUT = 10μF ILOAD = 10mA VOUT = 5.0V 60 VOUT = 3.0V 50 40 30 20 f = 10Hz to 100kHz CBP = 0.01μF COUT = 10μF 90 Output Noise(µVRMS) 70 Output Noise(µVRMS) 10 Output Noise vs.Load Current Output Noise vs.BP Capacitance VOUT = 2.5V 10 80 70 60 VOUT = 5.0V 50 VOUT = 3.0V 40 30 20 VOUT = 2.5V 10 0 0.001 0 0.01 BP Capacitance(µF) 0.1 1 VOUT(200μV/div) 1 1000 VOUT = 2.5V COUT = 10μF ILOAD = 10mA CBP = 0.1μF COUT = 10μF 10 10 100 Load Current(mA) Output Noise 10Hz To 100KHz Region of Stable COUT ESR vs.Load Current 100 COUT ESR(Ω) 1 Frequency(kHz) Frequency(kHz) COUT = 1μF Stable Region 0.1 0.02 0.01 0 30 60 90 Load Current(mA) 120 Time(100μs/div) 150 ８ SG2001/A TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted. EN Pin Voltage(V) Start Up 6 4 2 Output Voltage(V) 0 2 1 VIN = 5V VOUT = 2.5V CIN = COUT = 1μF ILOAD = 1mA 0 Time(10μs/div) Application Notes When LDO is used in handheld products, Attention must be paid to voltage spike which would damage SG2001. 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: 1 Vcc Input BZM55B5V6 1uF IN VOUT SG2001 C1 EN 3 GND 2 5 VOUT C2 BP/FP 4 4.7uF 0.01uF Control ９ SG2001/A PACKAGE OUTLINE DIMENSIONS SOT23-5 D θ b 0.20 Symbol L E E1 e C A1 e1 Min Max Min Max 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.400 0.012 0.016 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e1 L A A2 Dimensions In Inches 1.050 e １０ Dimensions In Millimeters A L 0 0.950TYP 1.800 0.037TYP 2.000 0.700REF 0.071 0.079 0.028REF L1 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8° SG2001/A REVISION HISTORY Location Page 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 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 １１ SG2001/A