XB25

SG2011 SGMICRO | Alldatasheet

Document overview

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Technical content

300mA , Low Power, Low Dropout, Linear Regulators GENERAL DESCRIPTION The SG2011 low-power, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input and deliver up to 300mA. They are perfect choice for low voltage, low power applications. An ultra low ground current (110 µA at 300mA output) makes them attractive for battery operated power systems. The SG2011 series also offer ultra low dropout voltage (210mV at 300mA output) to prolong battery life in portable electronics. The output voltage is preset to voltages in the range of 1.5V to 5.0V. Other features include foldback current limit and thermal shut-down protection. SG2011 comes in 3-pin SOT23 and 3-pin SOT89 packages.

APPLICATIONS

MP3、MP4 USB 2.0 Modems PC Cameras Hand-Held Instruments Electronic Dictionarys Portable/Battery-Powered Equipment TYPICAL OPERATION CIRCUIT OUTPUT INPUT IN OUT GND CIN 1μF COUT 1μF

FEATURES

• Ultra-Low Dropout Voltage: 210mV at 300mA output - Low 80µA No-Load Supply Current - Low 110µA Operating Supply Current at 300mA Output - Thermal-Overload Protection - Output Current Limit - Preset Output Voltages (±1.8% Accuracy) - Output Voltage: Available in Fixed Outputs of 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, and 3.6V PIN CONFIGURATIONS（TOP VIEW） GND IN OUT SOT23-3 INOUT GND GND SOT89-3 12 3 IN OUTGND IN 12 3 SOT89-3(L-Type) SG Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com REV . B

ORDERING INFORMATION

(V) PIN- PACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SOT23-3 SG2011-1.5XN3/TR XB15 Tape and Reel, 3000 SOT89-3 SG2011-1.5XK3/TR SG2011-1.5XK3 Tape and Reel, 1000SG2011-1.5 1.5V SOT89-3(L-Type) - 40°C to +125°C SG2011-1.5XK3L/TR SG2011-1.5XK3L Tape and Reel, 1000 SOT23-3 SG2011-1.8XN3/TR XB18 Tape and Reel, 3000 SOT89-3 SG2011-1.8XK3/TR SG2011-1.8XK3 Tape and Reel, 1000SG2011-1.8 1.8V SOT89-3(L-Type) - 40°C to +125°C SG2011-1.8XK3L/TR SG2011-1.8XK3L Tape and Reel, 1000 SOT23-3 SG2011-2.5XN3/TR XB25 Tape and Reel, 3000 SOT89-3 SG2011-2.5XK3/TR SG2011-2.5XK3 Tape and Reel, 1000SG2011-2.5 2.5V SOT89-3(L-Type) - 40°C to +125°C SG2011-2.5XK3L/TR SG2011-2.5XK3L Tape and Reel, 1000 SOT23-3 SG2011-2.8XN3/TR XB28 Tape and Reel, 3000 SOT89-3 SG2011-2.8XK3/TR SG2011-2.8XK3 Tape and Reel, 1000SG2011-2.8 2.8V SOT89-3(L-Type) - 40°C to +125°C SG2011-2.8XK3L/TR SG2011-2.8XK3L Tape and Reel, 1000 SOT23-3 SG2011-3.0XN3/TR XB30 Tape and Reel, 3000 SOT89-3 SG2011-3.0XK3/TR SG2011-3.0XK3 Tape and Reel, 1000SG2011-3.0 3.0V SOT89-3(L-Type) - 40°C to +125°C SG2011-3.0XK3L/TR SG2011-3.0XK3L Tape and Reel, 1000 SOT23-3 SG2011-3.3XN3/TR XB33 Tape and Reel, 3000 SOT89-3 SG2011-3.3XK3/TR SG2011-3.3XK3 Tape and Reel, 1000SG2011-3.3 3.3V SOT89-3(L-Type) - 40°C to +125°C SG2011-3.3XK3L/TR SG2011-3.3XK3L Tape and Reel, 1000 SOT23-3 SG2011-3.6XN3/TR XB36 Tape and Reel, 3000 SOT89-3 SG2011-3.6XK3/TR SG2011-3.6XK3 Tape and Reel, 1000SG2011-3.6 3.6V SOT89-3(L-Type) - 40°C to +125°C SG2011-3.6XK3L/TR SG2011-3.6XK3L Tape and Reel, 1000 ABSOLUTE MAXIMUM RATINGS IN + 0.3V) Power Dissipation, PD @ TA = 25℃ Package Thermal Resistance SOT23-3, θ ESD Susceptibility Stresses beyond those listed under “Absolute Maximum Ra tings” 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 imp lied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. PIN DESCRIPTION NAME FUNCTION IN Regulator Input. Supply voltage can range from 2.5V to 5.5V. GND Ground. OUT Regulator Output.

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 SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage V IN 2.5 5.5 V IOUT = 0.1mA, TA = +25°C -1.8 1.8 IOUT = 0.1mA to 300mA, TA = 0°C to +70°C

2.5 Output Voltage Accuracy

IOUT = 0.1mA to 300mA, TA = - 40°C to +125°C 2.9 Output Current 300 mA Current Limit I LIM 310 750 mA No load 80 140 Ground Pin Current I Q IOUT = 300mA 110 µA IOUT = 1mA 0.8 Dropout Voltage(Note1) IOUT = 300mA 210 340 mV Line Regulation ΔVLNR VIN = 2.5V or (VOUT + 0.1V) to 5.5V, IOUT = 1mA 0.004 0.15 %/V Load Regulation ΔVLDR I OUT = 0.1mA to 300mA, COUT = 1µF 0.0005 0.002 %/mA Output Voltage Noise en f = 10Hz to 100KHz, COUT = 10µF 120 µV RMS f = 100Hz, 74 dB Power Supply Rejection Rate PSRR I LOAD = 50mA, COUT = 1µF f = 1KHz, 54 dB THERMAL PROTECTION Thermal Shutdown Temperature T SHDN 160 ℃ Thermal Shutdown Hysteresis ΔTSHDN 15 ℃ 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)

TYPICAL OPERATING CHARACTERISTICS VIN = VOUT (NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF , TA = +25℃, unless otherwise noted. Ground Pin Current vs.Input Voltage 100 0123456 Input Voltage(V) Ground Pin Current(µA) No Load Iload = 50mA VOUT = 2.5V Ground Pin Current vs.Input Voltage 100 150 200 0123456 Input Voltage(V) Ground Pin Current(µA) No Load Iload = 50mA VOUT = 3.3V Output Voltage vs.Input Voltage 0123456 Input Voltage(V) Output Voltage(V) No Load VOUT = 2.5V VOUT = 3.3V Ground Pin Current vs.Load Current 100 110 120 130 140 150 160 0 50 100 150 200 250 300 Load Current(mA) Ground Current(µA) VOUT = 2.5V VOUT = 3.3V Output Voltage vs.Load Current 2.4 2.45 2.5 2.55 2.6 0 100 200 300 Load Current(mA) Output Voltage(V) VOUT = 2.5V Output Vlotage vs.Load Current 3.25 3.275 3.3 3.325 3.35 0 100 200 300 Load Current(mA) Output Voltage(V) VOUT = 3.3V

TYPICAL OPERATING CHARACTERISTICS VIN = VOUT (NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF , TA = +25℃, unless otherwise noted. Line-Transient Response 100µS/div 4.5V 3.5V 3.1V 2.9V VIN VOUT ILOAD = 150mA VOUT = 3V Load-Transient Response 40µS/div 50mA 0mA 3.05V 2.95V VOUT ILOAD VIN = VOUT + 0.5V ILOAD = 0mA to 50mA CIN = 1μF VOUT = 3V Load-Transient Response Near Dropout 40µS/div 2.95V 0mA 50mA 3.05V ILOAD = 0mA to 50mA VOUT ILOAD CIN = 1μF VIN = VOUT + 0.1V VOUT = 3V Power-Supply Rejection Ratio vs.Frequency 0.01 0.1 1 10 100 1000 Frequency(kHz) PSRR(dB) COUT = 10μF ILOAD = 50mA COUT = 1μF Region of Stable COUT ESR vs.Load Current 0.01 0.1 100 0 50 100 150 200 250 300 Load Current(mA) COUT ESR(Ω) COUT = 1μF COUT = 10μF Stable Region 0.02 Current limit vs.Temperature 300 400 500 600 700 800 900 1000 1100 1200 -40 -20 0 20 40 60 80 100 120 140 Temperature(℃) Current limit(mA) VOUT = 3.3V

TYPICAL OPERATING CHARACTERISTICS VIN = VOUT (NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1µF, COUT = 1µF , TA = +25℃, unless otherwise noted. Output Voltage vs.Temperature 2.4 2.45 2.5 2.55 2.6 -40 -20 0 20 40 60 80 100 120 140 Temperature(℃) Output Voltage(V) ILOAD = 300mA VOUT = 2.5V Output Voltage vs.Temperature 3.2 3.25 3.3 3.35 3.4 -40 -20 0 20 40 60 80 100 120 140 Temperature(℃) Output Voltage(V) ILOAD = 300mA VOUT = 3.3V Ground Pin Current vs.Temperature 100 120 140 160 180 200 -40 -20 0 20 40 60 80 100 120 140 Temperature(℃) Ground Pin Current(μA) VOUT = 2.5V VOUT = 3.3V ILOAD = 300mA Dropout Voltage vs.Load Current 120 160 200 240 280 320 360 0 30 60 90 120 150 180 210 240 270 300 Load Current(mA) Dropout Voltage(mV) TA = -40℃ TA = +25℃ TA = +85℃ TA = +125℃ VOUT = 2.5V Dropout Voltage vs.Load Current 100 150 200 250 300 350 0 50 100 150 200 250 300 Load Current(mA) Dropout Voltage(mV) TA = -40℃ TA = +25℃ TA = +85℃ TA = +125℃ VOUT = 3.3V VOUT = 2.5V ILOAD = 1mA Output V oltage(V) Input V oltage(V) Start Up Time(10µs/div)

When LDO is used in handheld products, Attention must be paid to voltage spike which would damage SG2011. In such applications, voltage spike will be generated at changer interface and V BUS pin of USB interface when changer adapters and USB equipments are hot-inserted. Besides th is, 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: SG2011 4.7uF VOUT Vcc Input GND IN VOUT C2C11uFBZM55B5V6

PACKAGE OUTLINE DIMENSIONS SOT23-3 D b A E LL C θ 0.20 e Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.050 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 e 0.950TYP 0.037TYP e1 1.800 2.000 0.071 0.079 L 0.700REF 0.028REF L1 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8°

PACKAGE OUTLINE DIMENSIONS SOT89-3 D b E L e D1 A c Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.400 1.600 0.055 0.063 b 0.320 0.520 0.013 0.020 b1 0.360 0.560 0.014 0.022 c 0.350 0.440 0.014 0.017 D 4.400 4.600 0.173 0.181 D1 1.400 1.800 0.055 0.071 E 2.300 2.600 0.091 0.102 E1 3.940 4.250 0.155 0.167 e 1.500TYP 0.060TYP e1 2.900 3.100 0.114 0.122 L 0.900 1.100 0.035 0.043

REVISION HISTORY

9/05— Data Sheet changed from preliminary to REV . A 12/06— Data Sheet changed from REV . A to REV . B 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