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| SGM2014 GENERAL DESCRIPTION Low Power, Low Dropout, 250mA, RF - Linear Regulators FEATURES - Low Output Noise: 30VRMS TYP(10Hz to 100kHz) - Ultra-Low Dropout Voltage: The SGM2014 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 ground current160A at 250mA output ) makes these part attractive for battery operated power systems. The SGM2014 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 SGM2014 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, output current limit and thermal shut- down protection. Devices come in 5-pin SOT23 package. 250mV at 250mA Output - Low 85A No-Load Supply Current - Low 160A Operating Supply Current - at 250mA Output High PSRR (73dB at 1kHz) Quick Auto-Discharge in Shutdown Status 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 CONFIGURATIONTOP VIEW SGM2014 IN 1 2 5 OUT APPLICATIONS Cellular Telephones Cordless Telephones PHS Telephones PCMCIA Cards Modems MP3 Player Hand-Held Instruments Palmtop Computers Electronic Planners Portable/Battery-Powered Equipment GND EN 3 SOT23-5 4 BP SG Microelectronics Co, Ltd Tel: 86/10/51798160/80 www.sg-micro.com REV. A ORDERING INFORMATION MODEL SGM2014-1.5 SGM2014-1.8 SGM2014-2.5 SGM2014-2.8 SGM2014-2.85 SGM2014-3.0 SGM2014-3.3 VOUT(V) 1.5V 1.8V 2.5V 2.8V 2.85V 3.0V 3.3V PINPACKAGE SPECIFIED TEMPERATURE RANGE ORDERING NUMBER SGM2014-1.5YN5/TR SGM2014-1.8YN5/TR SGM2014-2.5YN5/TR SGM2014-2.8YN5/TR SGM2014-2.85YN5/TR SGM2014-3.0YN5/TR SGM2014-3.3YN5/TR PACKAGE MARKING YE15 YE18 YE25 YE28 YE2J YE30 YE33 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 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. BLOCK DIAGRAM 2 SGM2014 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 Current Limit Ground Pin Current ILIM IQ No load, EN =1.6V IOUT = 250mA, EN = 1.6V 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 160 10 VIH VIL IB(SHDN) IQ(SHDN) VIN = 2.5V to 5.5V EN = 0V and EN = 5.5V EN = 0.4V CBP = 0.01F COUT = 1F, No load TA = +25C TA = +125C TA = +25C TA = +125C TA = +25C 1.6 0.4 0.01 0.01 0.01 0.01 30 1 1 V A A s 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 250 260 450 85 160 1.2 250 0.015 0.001 30 76 73 400 0.15 0.003 mV %/V %/mA VRMS dB dB 135 CONDITIONS MIN 2.5 -2 TYP MAX 5.5 2 2.6 % UNITS V mA mA A 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 + 1V. (Only applicable for VOUT = +2.5V to +3.3V) Note 2: Time needed for VOUT to reach 95% of final value. 3 SGM2014 TYPICAL OPERATION CIRCUIT INPUT 2.5V TO 5.5V IN C IN 1F ON OFF OUT OUTPUT SGM 2014 EN GND BP C OUT 1F C BP 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. 4 SGM2014 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V or +2.5V (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 3.3 2.4 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 5 SGM2014 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V or +2.5V (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 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 6 SGM2014 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V or +2.5V (whichever is greater), CIN = 1F, COUT = 1F, CBP = 0.01F, TA = +25, unless otherwise noted. 7 SGM2014 TYPICAL OPERATING CHARACTERISTICS VIN = VOUT(NOMINAL) + 1V or +2.5V (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 60 50 40 30 20 0.01 COUT = 1F 0.1 1 10 Frequency(kHz) 100 1000 COUT = 10F 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 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 8 SGM2014 APPLICATION NOTES When LDO is used in handheld products, attention must be paid to voltage spikes which could damage SGM2014. In such applications, voltage spikes will be generated at changer interface and VBUS pin of USB interface when changer adapters and USB equipments are hot-plugged. Besides this, handheld products will be tested on the production line without 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 spikes will be generated at the battery connector. The voltage spikes will be very high, and 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 spikes in cell phone designs. The schematic is shown below. Vcc Input BZM55B5V6 1uF C1 1 IN SGM2014 EN 3 GND 2 BP 4 VOUT 5 C2 4.7uF VOUT 0.01uF Control 9 SGM2014 PACKAGE OUTLINE DIMENSIONS SOT23-5 D b L 0 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 10 SGM2014 REVISION HISTORY Location 08/2007-- Data Sheet REV. A Page SG Microelectronics Co., Ltd A2608, NO.72 North Road Xisanhuan, Haidian District, Beijing, China 100037 Tel: 86-10-51798160/80 Fax: 86-10-51798180-803 www.sg-micro.com 11 SGM2014 |
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