LC1208 LEADCHIP | Alldatasheet
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Technical content
www.leadchip.com 1 Your final power solution 300mA Low Consumption Linear Regulator REV1.10Revised JAN 2015 LC1208
DESCRIPTION
LC1208 series is a group of positive voltage output, low power consumption, low dropout voltage, three termi nal regulator. It can provide 300mA output current when input / output voltage differential drops to 430mV（Vout = 2.8V）, The very l ow power consumption of LC1208 （Iq=1.0uA）can greatly improve natural life of batteries. LC1208 can provide output value in the range of 1.1V~5.5V in 0.1V steps. It also can be customized on command. LC1208 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. LC1208 has well load transient response and good temperature characteristic, And it uses trimming technique to guarantee output voltage accuracy within±2%.
FEATURES
Low Power Consumption:1.0uA（Typ.） Maximum Output Current:300mA Small Dropout Voltage 210mV@100mA (Vout=2.8V) 430mV@200mA (Vout=2.8V) Input Voltage Range:1.5V~6V Output Voltage Range:1.1V~5.5V (customized on command in 0.1V steps) Highly Accurate:±2% (±1% customized） Output Current Limit
APPLICATIONS
Battery Powered equipment Power Management of MP3、PDA、DSC、 Mouse、PS2 Games Reference Voltage Source Regulation after Switching Power TYPICAL APPLICATION Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit. Ceramic capacitor is recommended.
ELECTRICAL CHARACTERISTICS
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 50 100 150 200 250 300 Vout(V) Iout(mA) Load Regulation Vout=2.8V Vout=1.8V
www.leadchip.com 2 Your final power solution LC1208
ORDERING INFORMATION
□1 Temperature&Rohs: C:-40~85C ,Pb Free Rohs Std. Package type: B3:SOT-23-3 B3A:TSOT-23 B5:SOT-23-5 C3:SOT-89-3 H:TO-92 Packing type: TR:Tape&Reel (Standard) BG:Bag (TO-92) Output voltage: e.g. 11=1.1V 15=1.5V 55=5.5V Voltage accuracy: 1=±1% Blank(default)=±2% MARKING DESCRIPTON Output Voltage Code VOUT Code VOUT Code VOUT Code 1.2V 2 3.0V 0 4.4V 1.3V 3 3.1V 1 4.5V 1.5V 5 3.2V 2 4.6V 1.8V 8 3.3V 3 4.7V 2.0V ̅ 3.4V 4 4.8V 2.1V ̅ 3.5V 5 4.9V 2.2V ̅ 3.6V 6 5.0V 2.3V ̅ 3.7V 7 5.1V 2.4V ̅ 3.8V 8 5.2V 2.5V ̅ 3.9V 9 5.3V 2.6V ̅ 4.0V 0 5.4V 2.7V ̅ 4.1V 1 5.5V 2.8V ̅ 4.2V 2.9V ̅ 4.3V Y: The Year of manufacturing,”1” stands for year 2011, “2” stands for year 2012, and “8” stands for year 2018. W: The week of manufacturing. ”A” stands for week 1,”Z” stands for week 26,” A ” stands for week 27,” Z ” stands for week 52. PIN CONFIGURATION Product Classification LC1208CB3TR□□ Marking NXYW N:Product Code X:Output Voltage YW：Date Code Product Classification LC1208CB3ATR□□ Marking NXYW N:Product Code X:Output Voltage YW：Date Code Product Classification LC1208CB5TR□□ Marking NXYW N:Product Code X:Output Voltage YW：Date Code Product Classification LC1208CC3TR□□ Marking NXX LLBYW N:Product Code XX:Output Voltage LL:LOT NO. B:FAB Code YW:Date Code Product Classification LC1208CHBG□□ Marking NXX LLBYW N:Product Code XX:Output Voltage LL:LOT NO. B:FAB Code YW:Date Code GND Ground Pin Vin Supply Voltage Input Vout Output Voltage EN Chip Enable NC No Connection
www.leadchip.com 3 Your final power solution LC1208 ABSOLUTE MAXIMUM RATING Parameter Value Max Input Voltage 8V Operating Junction Temperature(Tj) 125C Ambient Temperature(Ta) -40C -85C Power Dissipation SOT-23-3 250mW TSOT-23 250mW SOT-23-5 250mW SOT-89-3 500mW TO-92 500mW Storage Temperature(Ts) -40C -150C Lead Temperature & Time 260C,10S Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. RECOMMENDED WORK CONDITIONS Item Min Recommended Max. Unit Input Voltage Range 6 V Ambient Temperature -40 85 C (Test Conditions: Cin=1uF, Cout=1uF, TA=25C, Unless Otherwise Specified) Symbol Parameter Conditions Min Type Max Units Vin Input Voltage 6 V Vout Output Voltage Vout x0.98 Vout X1.02 V Iout(Max.) Maximum Output Current Vin-Vout=1V 300 mA Dropout Voltage Input-Output Voltage Differential Iout=100mA Vout 1.8V 600 1000 mV Vout 1.8V 300 600 VoutVin Vout Line Regulation Iout=10mA 1.5V≤Vin≤8V 0.2 0.3 %/V Vout Load Regulation Vin=Set Vout+1V 1mA≤Iout≤100mA 20 40 mV Iq Quiescent Current Vin=Set Vout+1V 1.0 5.0 uA VoutT Vout Output Voltage Temperature Coefficient Iout=10mA 100 ppm/C Venh CE Input Voltage “H” 1.5 Vin V Venl CE Input Voltage “L” 0 0.2 V
www.leadchip.com 4 Your final power solution LC1208 BLOCK DIAGRAM EXPLANATION LC1208 is a series of low dropout voltage and low power consumption three pins regulator. Its application circuit is very simple, which only needs two outside capacitors. It is composed of these modules: high accuracy voltage reference, current limit circuit, error amplifier, output driver and power transistor. Current Limit module can keep chip and power system away from danger w hen load current is more than 420mA. LC1208 uses trimming technique to assure the accuracy of output value within±2%, at the same ti me, temperature compensation is elaborately considered in this chip, which makes LC1208’s temperature coefficient within 100ppm/C。
www.leadchip.com 5 Your final power solution LC1208 TYPICAL PERFORMANCE CHARACTERISTICS 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 50 100 150 200 250 300 Vout(V) Iout(mA) Load Regulation Vout=2.8V Vout=1.8V 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 2 4 6 8 Vout(V) Vin(V) Line Regulation Vout=2.8V Vout=1.8V 100 200 300 400 500 600 700 800 0 100 200 300 Dropout(mV) Iout(mA) Dropout Voltage Vout=2.8V Vout=1.8V 1 10 100 1000 10000 PSRR(dB) Freq(Hz) PSRR 0.0 0.3 0.6 0.9 1.2 1.5 0 3 6 9 12 Iq(uA) Vin(V) Iq Vout=2.8V Vout=1.8V 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 100 200 300 400 500 Vout(V) Iout(mA) Current Limit Vout=2.8V Vout=1.8V
www.leadchip.com 6 Your final power solution LC1208 Line transient response Cin=Cout=1uF, Iout=10mA, Vout=2.8V Cin=Cout=1uF, Iout=10mA, Vout=1.8V Load transient response Cin=Cout=1uF, Vin=4V, Vout=2.8V Cin=Cout=1uF, Vin=3V, Vout=1.8V Start up Vin Vout 1mA 100mA Output Current Output Voltage Vin Vout 5V Vin Vout 1mA 100mA Output Current Output Voltage Vin Vout
www.leadchip.com 7 Your final power solution LC1208 PACKAGE LINE Package TSOT-23 Devices per reel 3000Pcs Unit mm Package dimension： Package SOT-23-3 Devices per reel 3000Pcs Unit mm Package dimension：
www.leadchip.com 8 Your final power solution LC1208 Package SOT-23-5 Devices per reel 3000Pcs Unit mm Package Dimension: Package SOT-89-3 Devices per reel 1000Pcs Unit mm Package Dimension:
www.leadchip.com 9 Your final power solution LC1208 Package TO-92 Devices per Bag 1000Pcs Unit mm Package Dimension: