SG2001-1.8

SG2001/A GENERAL DESCRIPTION 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. 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. Devices come in 5-pin SOT23 package. 150mA, Low Power, Low Noise, Low Dropout, Linear Regulators FEATURES - Low Output Noise: 30µVRMS typ(10Hz to 100KHz) - Ultra-Low Dropout Voltage: 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 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 IN 1 2 5 OUT GND EN 3 SOT23-5 4 BP/FB Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com REV. B ORDERING INFORMATION MODEL SG2001-1.2 SG2001-1.5 SG2001-1.8 SG2001-2.5 SG2001-2.8 SG2001-2.85 SG2001-3.0 SG2001-3.3 SG2001-3.6 SG2001-5.0 SG2001A VOUT(V) 1.2V 1.5V 1.8V 2.5V 2.8V 2.85V 3.0V 3.3V 3.6V 5.0V adjustable PINPACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER SG2001-1.2XN5/TR SG2001-1.5XN5/TR SG2001-1.8XN5/TR SG2001-2.5XN5/TR SG2001-2.8XN5/TR SG2001-2.85XN5/TR SG2001-3.0XN5/TR SG2001-3.3XN5/TR SG2001-3.6XN5/TR SG2001-5.0XN5/TR SG2001-XN5/TR PACKAGE MARKING X112 X115 X118 X125 X128 X12J X130 X133 X136 X150 X1AA PACKAGE OPTION SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 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 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 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, θJA....................................................................... 250℃/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. 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 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. 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 VIN IOUT = 0.1mA, VOUT ≥2.5V, TA = +25°C IOUT = 0.1mA to 150mA, VOUT ≥2.5V TA = 0°C to +70°C IOUT = 0.1mA to 150mA, VOUT ≥2.5V Output Voltage Accuracy TA = - 40°C to +125°C IOUT = 0.1mA to 150mA, 1.5V≤VOUT＜2.5V 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 No load, EN = 2V IOUT = 150mA, 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 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 = 150mA 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, COUT = 10µF CBP = 0.1µF, ILOAD = 50mA, f = 100Hz COUT = 1µF f = 1KHz VOUT≤3.3V VOUT＞3.3V 2 150 160 600 77 77 100 0.8 105 0.004 0.0005 30 74 54 170 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 2.4 2.6 6 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. ３ SG2001/A TYPICAL OPERATION CIRCUIT INPUT 2.5V TO 5.5V IN CIN 1μF ON OFF OUT OUTPUT COUT 1μF INPUT 2.5V TO 5.5V IN OUT OUTPUT SG2001A EN GND FB R1 CIN 1μF ON OFF SG2001 EN GND BP COUT 1μF R2 CBP 0.01μF 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(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 2.6 5.05 Output Voltage vs.Load Current Output Voltage(V) Output Voltage(V) 2.55 5.025 2.5 5 2.45 VOUT = 2.5V 2.4 0 50 100 Load Current(mA) 150 4.975 VOUT = 5V 4.95 0 50 100 Load Current(mA) 150 Ground Pin Current vs.Load Current 125 120 115 110 105 100 95 90 85 80 75 70 65 60 0 100 Ground Pin Current vs.Input Voltage Ground Pin Current(µA) Ground Pin Current(µA) VOUT = 5V 80 60 Iload = 50mA No Load 40 20 VOUT = 2.5V 0 VOUT = 2.5V 50 100 Load Current(mA) 150 0 1 2 3 4 Input Voltage(V) 5 6 Ground Pin Current vs.Input Voltage 350 300 Ground Pin Current(µA) 250 200 150 100 50 0 0 1 2 3 4 Input Voltage(V) 5 6 VOUT = 5V No Load Iload = 50mA Output Voltage(V) Output Voltage vs.Input Voltage 6 No Load 5 4 VOUT = 5V 3 2 VOUT = 2.5V 1 0 0 1 2 3 4 Input Voltage(V) 5 6 ５ 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 2.6 ILOAD = 50mA Output Voltage(V) Output Voltage(V) 5.2 ILOAD = 50mA 5.1 Output Voltage vs.Temperature 2.55 2.5 5 2.45 VOUT = 2.5V 2.4 -40 -20 0 20 40 60 80 Temperature(℃) 100 120 140 4.9 VOUT = 5V 4.8 -40 -20 0 20 40 60 80 Temperature(℃) 100 120 140 Ground Pin Current vs.Temperature 160 140 Ground Pin Current(μA) 120 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 120 140 160 Temperature(℃) ILOAD = 50mA VOUT = 2.5V VOUT = 5V Dropout Voltage vs.Load Current 180 160 Dropout Voltage(mV) 140 120 100 80 60 40 20 0 0 20 40 60 80 100 120 140 160 Load Current(mA) VOUT = 2.5V TA = +125℃ TA = +85℃ TA = +25℃ TA = -40℃ Dropout Voltage vs.Load Current 160 140 Dropout Voltage(mV) 120 100 80 60 40 20 0 0 20 40 60 80 100 120 Load Current(mA) 140 160 VOUT = 5V TA = +125℃ 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 = 2.5V TA = +85℃ TA = +25℃ TA = -40℃ 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. Line-Transient Response 4.5V 3.5V ILOAD = 50mA 3.1V 3V 2.9V VOUT = 3V 100µS/div VOUT VIN Load-Transient Response VIN = VOUT + 0.5V ILOAD = 0mA to 50mA 3.05V 3V 2.95V CIN = 1μF VOUT 50mA 0mA VOUT = 3V 40µS/div ILOAD Load-Transient Response Near Dropout 3.05V 3V 2.95V VOUT = 3V VOUT Shutdown Exit Delay 2V ILOAD = 50mA EN 0V CBP = 0.01µF 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 4V 2V 0V 100µS/div CBP = 0.1µF VOUT = 5V 0V VOUT = 5V 2V 0V 5V Entering Shutdown No Load EN EN CBP = 0.01µF VOUT VOUT 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. Power-Supply Rejection Ratio vs.Frequency 80 70 60 CBP = 0.1μF ILOAD = 50mA Output Noise Spectral Density vs.Frequency Output Noise Spectral Density (μV/√Hz) 10 CBP = 0.01μF ILOAD = 10mA 1 PSRR(dB) 50 40 30 20 10 0 0.01 COUT = 1μF COUT = 10μF COUT = 1μF 0.1 COUT = 10μF 0.1 1 10 100 1000 0.1 1 10 100 1000 0.01 0.01 Frequency(kHz) Frequency(kHz) Output Noise vs.BP Capacitance 80 70 Output Noise(µVRMS) 60 50 40 30 20 10 0 0.001 VOUT = 2.5V VOUT = 3.0V VOUT = 5.0V Output Noise vs.Load Current 100 90 Output Noise(µVRMS) 80 70 60 50 40 30 20 10 0 VOUT = 2.5V 1 10 100 Load Current(mA) 1000 VOUT = 5.0V VOUT = 3.0V f = 10Hz to 100kHz CBP = 0.01μF COUT = 10μF f = 10Hz to 100kHz COUT = 10μF ILOAD = 10mA 0.01 BP Capacitance(µF) 0.1 Region of Stable COUT ESR vs.Load Current 100 Output Noise 10Hz To 100KHz VOUT = 2.5V COUT = 10μF ILOAD = 10mA CBP = 0.1μF 10 COUT ESR(Ω) COUT = 10μF 1 Stable Region 0.1 COUT = 1μF 0.02 0.01 0 30 60 90 Load Current(mA) 120 150 VOUT(200μV/div) Time(100μs/div) 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. 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 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: Vcc Input BZM55B5V6 1uF C1 1 IN SG2001 EN 3 GND 2 BP/FP 4 VOUT 5 C2 4.7uF VOUT 0.01uF Control ９ SG2001/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 SG2001/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 １１ SG2001/A