SG2003/A SG2004/A
400mA, Low Power, Low Noise, Low Dropout, Linear Regulators
GENERAL DESCRIPTION FEATURES The SG2003/A and SG2004/A low-power, low-noise, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input and deliver up to 400mA (400mA peak SG2003 only). They are the perfect choice for low voltage, low power applications. An ultra low ground current (120µA at 400mA output) make them attractive for battery operated power systems. The SG2003/A and SG2004/A series also offer ultra low dropout voltage (280mV at 400mA output) to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SG2003/A and SG2004/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: - - - - - - - 280mV at 400mA output Low 77µA No-Load Supply Current Low 120µA Operating Supply Current at 400mA 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 2.5V, 2.8V, 2.85V, 3.0V, and 3.3V Adjustable Output from 1.5V to 4.5V The output voltage is preset to voltages in the range of 1.5V to 4.5V. Other features include a 10nA logic-controlled shutdown mode, foldback current limit and thermal shut-down protection. PIN CONFIGURATIONS（TOP VIEW） SG2003/A comes in 5-pin SOT23 package and SG2004/A comes in 8-pin SO package. SG2003/AINGNDEN123SOT23-54BP/FB5OUT APPLICATIONS Cellular Telephones Cordless Telephones PHS Telephones PCMCIA Cards Modems MP3 Players Hand-Held Instruments Palmtop Computers Electronic Planners Portable/Battery-Powered Equipment SG2004/AENINOUTBP/FB18GNDGNDGNDGND2736 45SO-8
Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com
REV. B
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ORDERING INFORMATION
MODEL
VOUT(V)
SPECIFIED
PIN-
TEMPERATURE
PACKAGE
RANGE
ORDERING NUMBER
PACKAGE MARKING
PACKAGE OPTION
SG2003-2.5 SG2003-2.8 SG2003-2.85 SG2003-3.0 SG2003-3.3 SG2004-2.5 SG2004-2.8 SG2004-2.85 SG2004-3.0 SG2004-3.3
2.5V 2.8V 2.85V 3.0V 3.3V 2.5V 2.8V 2.85V 3.0V 3.3V
SO-8 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- 40°C to +125°C
SG2003-2.5XN5/TRSG2003-2.8XN5/TRSG2003-2.85XN5/TRSG2003-3.0XN5/TRSG2003-3.3XN5/TRSG2003-XN5/TR SG2004-2.5XS/TR SG2004-2.8XS/TR SG2004-2.85XS/TRSG2004-3.0XS/TR SG2004-3.3XS/TR SG2004-XS/TR
X325 X328 X32J X330 X333 X3AA SG2004-2.5XS SG2004-2.8XS SG2004-2.85XS SG2004-3.0XS SG2004-3.3XS SG2004-XS
Tape and Reel, 3000Tape and Reel, 3000Tape and Reel, 3000Tape and Reel, 3000Tape and Reel, 3000Tape and Reel, 3000Tape and Reel, 2500Tape and Reel, 2500Tape and Reel, 2500Tape and Reel, 2500Tape and Reel, 2500Tape and Reel, 2500
SG2003A adjustable SG2004A adjustable
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 SO-8 ........................................................................................0.625W Package Thermal Resistance
SOT23-5, θJA....................................................................... 250℃/W
SO-8, θJA....................................................................160°C/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.
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SG2003/A SG2004/A
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ELECTRICAL CHARACTERISTICS
(VIN = VOUT (NOMINAL) +1V, TA = - 40°C to +125°C, unless otherwise noted. Typical values are at TA = + 25°C.)
PARAMETER SYMBOL CONDITIONS Input Voltage
IOUT = 0.1mA, VOUT ≥2.5V, TA = +25°C IOUT = 0.1mA to 400mA, VOUT ≥2.5V TA = 0°C to +70°C
Output Voltage Accuracy
IOUT = 0.1mA to 400mA, VOUT ≥2.5V TA = - 40°C to +125°C
IOUT = 0.1mA to 400mA, VOUT,＜2.5V TA = - 40°C to +125°C
Output Current Current Limit Ground Pin Current
SG2003 SG2004
ILIM IQ
No load, EN = 2V IOUT = 400mA, EN = 2V
Dropout Voltage(Note2) 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(Note3) THERMAL PROTECTION Thermal Shutdown TemperatureThermal Shutdown Hysteresis
MIN TYP MAXUNITS-1.6
1.6
VIN 2.5 5.5 V 2.5 %
2.9 3.1 400 (Note1)
mA
400 mA 410 750 mA VOUT≤3.3V 77 130 µA 145 VOUT＞3.3V 77
120 0.8 280
440
mV
ΔVLNR ΔVLDR
IOUT = 1mA IOUT = 400mA
VIN = 2.5V or (VOUT + 0.1V) to 5.5V, IOUT = 1mA
IOUT = 0.1mA to 400mA, COUT = 1µF f = 10Hz to 100KHz, CBP = 0.01µF COUT = 1µF
COUT = 10µF
0.004 0.15 %/V
0.0005 30
0.002
%/mA µVRMS
en
PSRR
CBP = 0.1µF, ILOAD = 50mA, f = 100Hz,
f = 1KHz,
74 dB 54 dB VIH 2.0 VIN = 2.5V to 5.5V V
VIL 0.4 IB(SHDN) IQ(SHDN)
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
0.01 0.01 0.01 0.01 30
1 1
µA µA µs
TSHDN ΔTSHDN
160 ℃
15 ℃
Specifications subject to change without notice.
Note 1: SG2003 series’ output current is 400mA peak.
Note 2: 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 +4.5V)
Note 3: Time needed for VOUT to reach 95% of final value.
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SG2003/A SG2004/A
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TYPICAL OPERATION CIRCUIT
INPUT2.5V TO 5.5VINCIN1μFONOFFOUTCOUT1μFONOFFCIN1μFINPUT2.5V TO 5.5VINOUTCOUT1μFOUTPUTOUTPUT SG2003ASG2004AENGNDFBR1SG2003SG2004ENGNDBPCBP0.01μFR2
Adjustable Voltage Version Fixed Voltage Version
Standard 1% Resistor Values for Common
Output Voltages of Adjustable Voltage Version
R1(kΩ) R2(kΩ) VOUT(V)
1.5 13 61.9 1.8 28 61.9 2.5 63.4 61.9 2.8 78.7 61.9 2.85 80.6 61.9 3.0 88.7 61.9 3.3 95.3 57.6
Note: VOUT = (R1 + R2)/ R2 × 1.2395
PIN DESCRIPTION
NAME
SOT23-5 SO-8
FUNCTION
PIN PIN
Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1µF capacitor to GND.IN 1 2 Ground. GND 2 5,6,7,8 Shutdown Input. A logic low reduces the supply current to 10nA. Connect to IN for normal
EN 3 1 operation.
Reference-Noise Bypass(fixed voltage version only). Bypass with a low-leakage 0.01µF ceramic
BP 4 4 capacitor for reduced noise at the output.
Adjustable voltage version only—this is used to set the output voltage of the device. FB 4 4 Regulator Output. OUT 5 3
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SG2003/A SG2004/A
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TYPICAL OPERATING CHARACTERISTICS
VIN = VOUT(NOMINAL) + 1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted.
Ground Pin Current vs.Input Voltage100)80Iload = 50mAAµ(tner60ruC nNo LoadiP40 dnuorG20VOUT = 2.5V00123456Input Voltage(V)
Output Voltage vs.Input Voltage6No Load5)V(e4gaVOUT = 3.3Vtlo3V tupt2uOVOUT = 2.5V100123456 Input Voltage(V)
Output Voltage vs.Load Current2.6)2.55V(egatlo2.5V tuptuO2.45VOUT = 2.5V2.40100200300400Load Current(mA)Ground Pin Current vs.Input Voltage200)Aµ150Iload = 50mA(tnerruC 100niP dnuo50No LoadrGVOUT = 3.3V00123456 Input Voltage(V) Ground Pin Current vs.Load Current190180170)160Aµ150(t140VnOUT = 3.3Ver130ruC120 dn110uo100rVG90OUT = 2.5V8070600100200300400
Load Current(mA) Output Vlotage vs.Load Current3.35)3.325V(egatlo3.3V tuptuO3.275VOUT = 3.3V3.250100200300400
Load Current(mA)
SG2003/A SG2004/A
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TYPICAL OPERATING CHARACTERISTICS
VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted.
Line-Transient Response4.5V3.5VVINILOAD = 150mA3.1V3V2.9VVOUTVOUT = 3V100µS/div
Load-Transient Response Near Dropout3.05VVOUT = 3V3VVOUT2.95V50mA0mAILOADCIN = 1μFVIN = VOUT + 0.1VILOAD = 0mA to 50mA40µS/div
Shutdown Exit DelayILOAD = 50mA2VEN 0VCBP = 0.01µF3.3VOUTCBP = 0.1µF0VVOUT = 3.3V100µS/div
Load-Transient ResponseVIN = VOUT + 0.5VILOAD = 0mA to 50mA3.05VCIN = 1μF3VVOUT2.95V50mA0mAILOADVOUT = 3V40µS/div
Shutdown Exit Delay2VILOAD = 50mAEN0VCBP = 0.01µF2VVOUT1VCBP = 0.1µF0VVOUT = 2.5V100µS/div
Entering Shutdown2VNo Load0VEN3.3VVOUT0VVOUT = 3.3V 100µS/div
SG2003/A SG2004/A
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TYPICAL OPERATING CHARACTERISTICS
VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted.
Output Noise Spectral Densityvs.Frequencyy10tisCBP = 0.01μFneI 10mADLOAD = lar)1tzcHe√p/SV μe(COUT = 1μFsioN0.1 tuptuOCOUT = 10μF0.010.010.11101001000Frequency(kHz)
Output Noise vs.Load Current10090f = 10Hz to 100kHzCBP = 0.01μF)80SCOUT = 10μFRM70Vµ(60esi50oN t40VOUT = 3.0Vupt30uO2010VOUT = 2.5V01101001000Load Current(mA)
Power-Supply Rejection Ratiovs.Frequency8070CBP = 0.1μFILOAD = 50mA60)50Bd(40COUT = 10μFRRSP302010COUT = 1μF00.010.11101001000Frequency(kHz) Output Noise vs.BP Capacitance80f = 10Hz to 100kHz70COUT = 10μF)ISLOAD = 10mAM60RVµ50VOUT = 3.0V(esio40N tu30ptuO20VOUT = 2.5V1000.0010.010.1
BP Capacitance(µF)
Output Noise 10Hz To 100KHz
VCOUT = 3.3VIOUT = 10μFLOAD = 10mA CBP = 0.1μF
)vid/Vμ002(TOUVTime(200μs/div)
Region of Stable COUT ESR vs.Load Current10010COUT = 10μF)Ω(RSE1 CTOUT = 1μFUOCStable Region0.10.020.010100200300400
Load Current(mA)
SG2003/A SG2004/A
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TYPICAL OPERATING CHARACTERISTICS
VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted.
Current limit vs.Temperature12001100VOUT = 3.3V)1000Am(900timi800l tn700erru600C500400300-40-20020406080100120140Temperature(℃)
Output Voltage vs.Temperature3.4ILOAD = 300mA)V3.35(egatloV3.3 tuptuO3.25VOUT = 3.3V3.2-40-20020406080100120140Temperature(℃)
Dropout Voltage vs.Load Current600500)V= +125℃mTA (eg400TA = +85℃atloV300TA = +25℃ tuTA = -40℃op200orD100VOUT = 2.5V0050100150200250300350400Load Current(mA)
Output Voltage vs.Temperature2.6ILOAD = 300mA)2.55V(egatloV2.5 tuptuO2.45VOUT = 2.5V2.4-40-20020406080100120140 Temperature(℃)
Ground Pin Current vs.Temperature200180)Aμ(160VOUT = 3.3Vtner140ruC 120niPVOUT = 2.5V d100nuor80G60ILOAD = 300mA40-40-20020406080100120140 Temperature(℃)
Dropout Voltage vs.Load Current600500)Vm(eTA = +125℃g400atTA = +85℃loV300 TA = +25℃tuop200TA = -40℃orD100VOUT = 3.3V0050100150200250300350400Load Current(mA)
SG2003/A SG2004/A
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TYPICAL OPERATING CHARACTERISTICS
VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted.
Start Up
Output Voltage(V) EN Pin Voltage(V)
6
4
2
0
2
1
0
VIN = 5V
VOUT = 2.5V CIN = COUT = 1μFILOAD = 1mA
Time(10μs/div)
Application Notes
When LDO is used in handheld products, Attention must be paid to voltage spike which would damage SG2003 and SG2004. 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:
VccInputBZM55B5V61uFC1ENINSG2003/SG2004GNDBP/FPVOUTC24.7uFVOUT0.01uFControl９
SG2003/A SG2004/A
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PACKAGE OUTLINE DIMENSIONS
SOT23-5
DbL0θ0.20SymbolDimensions Dimensions In Millimeters In Inches Min Max Min MaxA 1.050 1.250 0.041 0.049A1 0.000 0.100 0.000 0.004E1A2 1.050 1.150 0.041 0.045b 0.300 0.400 0.012 0.016c 0.100 0.200 0.004 0.008ELee1A1CD 2.820 3.020 0.111 0.119E 1.500 1.700 0.059 0.067E1 2.650 2.950 0.104 0.116e 0.950TYP 0.037TYP e1 1.800 2.000 0.071 0.079A2L 0.700REF 0.028REF A
L1 0.300 0.600 0.012 0.024θ 0° 8° 0° 8° １０
SG2003/A
SG2004/A
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PACKAGE OUTLINE DIMENSIONS
SO-8
DC SymbolLDimensions Dimensions In Millimeters In Inches Min Max Min Max1.350 0.100 1.350 0.330 0.190 4.780 3.800 5.800 0.400 1.750 0.250 1.550 0.510 0.250 5.000 4.000 6.300 1.270 0.053 0.004 0.053 0.013 0.007 0.188 0.150 0.228 0.016 0.0690.0100.0610.0200.0100.1970.1570.2480.050 A A1 E1E A2 B C D eθ E E1 e A11.270TYP 0.050TYP BA2 L θ 0° 8° 0° 8° A
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SG2003/A SG2004/A
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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
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SG2003/A SG2004/A
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