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| SGM2015 GENERAL DESCRIPTION The SGM2015 series low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input and deliver up to 250mA. They are the perfect choice for low voltage, low power applications. An ultra low www..com ground current160A at 250mA output ) makes these part attractive for battery operated power systems. The SGM2015 series also offer ultra low dropout voltage (250mV at 250mA output) to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SGM2015 series' ultra low output noise (30VRMS) and high PSRR. 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 3.3V. Other features include a 10nA logic-controlled shutdown mode, foldback current limit and thermal shutdown protection. Devices come in 5-pin SOT23 package. Low Power, Low Dropout, 250mA, RF - Linear Regulators FEATURES - Low Output Noise: 30VRMS typ(10Hz to 100KHz) - Ultra-Low Dropout Voltage: 250mV at 250mA output - Low 85A No-Load Supply Current - Low 160A Operating Supply Current - at 250mA Output High PSRR (73dB at 1KHz) Thermal-Overload Protection Output Current Limit 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 PIN CONFIGURATIONSTOP VIEW SGM2015 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 Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com REV. A ORDERING INFORMATION MODEL SGM2015-1.5 SGM2015-1.8 SGM2015-2.5 SGM2015-2.8 SGM2015-2.85 www..com SGM2015-3.0 SGM2015-3.3 VOUT(V) 1.5V 1.8V 2.5V 2.8V 2.85V 3.0V 3.3V PINPACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER SGM2015-1.5YN5/TR SGM2015-1.8YN5/TR SGM2015-2.5YN5/TR SGM2015-2.8YN5/TR SGM2015-2.85YN5/TR SGM2015-3.0YN5/TR SGM2015-3.3YN5/TR PACKAGE MARKING YF15 YF18 YF25 YF28 YF2J YF30 YF33 PACKAGE OPTION SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 - 40C to +85C - 40C to +85C - 40C to +85C - 40C to +85C - 40C to +85C - 40C to +85C - 40C to +85C 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 +85C Junction Temperature...........................................................+150C Storage Temperature.............................................- 65C to +150C Lead Temperature (soldering, 10s).......................................260C ESD Susceptibility HBM..........................................................................................4000V 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 SGM2015 ELECTRICAL CHARACTERISTICS VIN = VOUT (NOMINAL) + 1V, TA = - 40C to +85C, unless otherwise noted. Typical values are at TA = + 25C PARAMETER Input Voltage SYMBOL VIN IOUT = 0.1mA, TA = +25C Output Voltage Accuracy IOUT = 0.1mA to 250mA TA = -40C to +85C Maximum Output Current www..com CONDITIONS MIN 2.5 -2 TYP MAX 5.5 2 2.6 UNITS V % 250 ILIM IQ No load, EN =1.6V IOUT = 250mA, EN = 1.6V 260 450 85 160 1.2 250 0.015 0.001 30 76 73 1.6 0.4 TA = +25C TA = +125C TA = +25C TA = +125C TA = +25C 0.01 0.01 0.01 0.01 30 1 1 400 0.15 0.003 135 mA mA A Current Limit Ground Pin Current 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 VIH VIL IB(SHDN) IQ(SHDN) VLNR VLDR IOUT = 1mA IOUT = 250mA VIN = 2.5V or (VOUT + 0.5V) to 5.5V IOUT = 1mA IOUT = 0.1mA to 250mA, COUT = 1F f = 10Hz to 100KHz, CBP = 0.01F, COUT = 10F CBP = 0.1F, ILOAD = 50mA, f = 100Hz COUT = 1F f = 1KHz mV %/V %/mA VRMS dB dB en PSRR VIN = 2.5V to 5.5V EN = 0V and EN = 5.5V EN = 0.4V CBP = 0.01F COUT = 1F, No load V A A s 160 10 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 + 1V. (Only applicable for VOUT = +2.5V to +3.3V) Note 2: Time needed for VOUT to reach 95% of final value. SGM2015 TYPICAL OPERATION CIRCUIT INPUT 2.5V TO 5.5V IN CIN 1F ON OUT OUTPUT SGM 2015 EN GND BP COUT 1F www..com OFF CBP 0.01F PIN DESCRIPTION PIN 1 2 3 4 5 NAME IN GND EN BP 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. Bypass with a low-leakage 0.01F ceramic capacitor for reduced noise at the output. Regulator Output. SGM2015 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Output Voltage vs.Load Current 2.7 VOUT = 2.5V Output Voltage(V) Output Voltage vs.Load Current 3.5 VOUT = 3.3V Output Voltage(V) 3.4 2.6 2.5 www..com 2.4 3.3 3.2 2.3 0 50 100 150 Load Current(mA) 200 250 3.1 0 50 100 150 Load Current(mA) 200 250 Ground Pin Current vs.Load Current 200 190 180 170 160 150 140 130 120 110 100 90 80 70 0 200 Ground Pin Current vs.Input Voltage VOUT = 3.3V Ground Pin Current(A) 160 120 80 40 0 No Load Ground Pin Current(A) VOUT = 3.3V VOUT = 2.5V 50 100 150 Load Current(mA) 200 250 0 1 2 3 4 Input Voltage(V) 5 6 Ground Pin Current vs.Input Voltage 200 VOUT = 2.5V Ground Pin Current(A) 160 120 80 40 0 0 1 2 3 4 Input Voltage(V) 5 6 No Load Output Voltage(V) 5 4 3 2 1 0 0 6 Output Voltage vs.Input Voltage No Load VOUT = 3.3V VOUT = 2.5V 1 2 3 4 Input Voltage(V) 5 6 SGM2015 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Output Voltage vs.Temperature 2.7 ILOAD = 150mA Output Voltage(V) Output Voltage(V) 2.6 3.4 3.5 ILOAD = 150mA Output Voltage vs.Temperature 2.5 www..com 3.3 2.4 VOUT = 2.5V 2.3 -40 -15 10 35 Temperature() 60 85 3.2 VOUT = 3.3V 3.1 -40 -15 10 35 Temperature() 60 85 Ground Pin Current vs.Temperature 260 240 Ground Pin Current(A) 220 Dropout Voltage(mV) 200 180 160 140 120 100 80 60 -40 -20 0 20 40 60 80 Temperature() 100 120 140 ILOAD = 150mA VOUT = 2.5V VOUT = 3.3V 330 300 270 240 210 180 150 120 90 60 30 0 0 25 Dropout Voltage vs.Load Current TA = +85 TA = +25 TA = -40 VOUT = 2.5V 50 75 100 125 150 175 200 225 250 Load Current(mA) Dropout Voltage vs.Load Current 270 240 Dropout Voltage(mV) TA = +85 TA = +25 TA = -40 Current limit vs.Temperature 1000 900 Current limit(mA) 800 700 600 500 400 300 VOUT = 2.5V VOUT = 3.3V 210 180 150 120 90 60 30 0 0 25 50 75 100 125 150 175 200 225 250 Load Current(mA) VOUT = 3.3V 200 100 -40 -15 10 35 Temperature() 60 85 SGM2015 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. www..com SGM2015 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. Power-Supply Rejection Ratio vs.Frequency 100 90 80 PSRR(dB) 70 www..com 60 50 40 30 20 0.01 COUT = 1F 0.1 1 10 Frequency(kHz) 100 1000 Output Noise Spectral Density vs.Frequency 10 Output Noise Spectral Density (V/Hz) CBP = 0.1F ILOAD = 50mA VIN = VOUT+1V CBP = 0.01F ILOAD = 50mA 1 COUT = 1F COUT = 10F 0.1 COUT = 10F 0.01 0.01 0.1 1 10 100 1000 Frequency(kHz) Output Noise vs.Load Current 50 45 Output Noise(VRMS) 40 35 30 25 20 15 10 5 0 1 10 100 Load Current(mA) 1000 VOUT = 2.8V f = 10Hz to 100kHz CBP = 0.01F COUT = 10F VOUT = 3.3V SGM2015 Application Notes When LDO is used in handheld products, Attention must be paid to voltage spike which would damage SGM2015. 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 www..com remove voltage spike in cell phone design. The schematic is shown in below: Vcc Input BZM55B5V6 1uF C1 1 IN SGM2015 EN 3 GND 2 BP 4 VOUT 5 C2 4.7uF VOUT 0.01uF Control SGM2015 PACKAGE OUTLINE DIMENSIONS SOT23-5 D b L 0 www..com 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 SGM2015 REVISION HISTORY Location 08/07-- Data Sheet REV. A Page www..com 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 SGM2015 |
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