LC1555CC3TR33

LC1555 40V 150mA Low Consumption Linear Regulator DESCRIPTION FEATURES LC1555 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. It can provide 150mA output current when input / output voltage differential drops to 400mV (Vout= 5V), and it also provides foldback short-circuit protection, thermal protection and output current limit function. The very low power consumption of LC1555 (Iq=2.5uA) can greatly improve natural life of batteries.    LC1555 can provide output value in the range of 1.2V~5.0V in 0.1V steps. It also can customize on command.     Low power consumption: 2.5uA(Typ.) Maximum output current: 150mA Small dropout voltage 400mV@100mA (Vout=5V) Input voltage range: 3V~40V Output voltage range: 1.2V~5.0V (Vout>5V customized) Highly accurate:±2%(±1% customized) Output current limit: 180mA APPLICATIONS   LC1555 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module.  LC1555 has well load transient response and good temperature characteristic, And it uses trimming technique to guarantee output voltage accuracy within±2%. TYPICAL APPLICATION Battery powered equipment Power management of MP3、PDA、DSC、 mouse、PS2 games Reference voltage source regulation after switching power ELECTRICAL CHARACTERISTICS Load Regulation 6.0 5.5 Input VIN LC1555 VOUT GND 4.5 Cout 4.0 Vout(V) Cin 5.0 Output Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit. Ceramic capacitor is recommended. 3.5 3.0 2.5 2.0 Vin=6V Vin=8V Vin=12V Vin=25V Vin=40V 1.5 1.0 0.5 0.0 0.00 0.05 0.10 0.15 Iout(A) www.leadchip.com.cn 1 Your final power solution LC1555 ORDERING INFORMATION PIN CONFIGURATION LC1555 □ 1□ 2□ 3□ 4□ 5 Code Product classification Marking R:product code XX: output voltage RXX LLXYW LL: LOT NO. X: FAB code YW: date code Description Temperature&Rohs: C:-40~85C ,Pb Free Rohs Std. Package type: C3:SOT-89-3 C3B:SOT-89-3(B) Packing type: TR:Tape&Reel (Standard) Output voltage: e.g. 12=1.2V 15=1.5V 50=5.0V Voltage accuracy: 1=±1% Blank(default)=±2% □ 1 □ 2 □ 3 □ 4 □ 5 Product classification Parameter LC1555CC3BTR□□□ Marking R:product code XX: output voltage RXXI LLXYW LL: LOT NO. X: FAB code YW: date code Supply voltage input VIN Ground pin GND VOUT Output voltage ABSOLUTE MAXIMUM RATING Value Max input voltage Operating junction temperature(TJ) Ambient temperature(TA) Power dissipation (PD@TA=25C) Package thermal SOT-89-3 resistance (JC) Package thermal resistance (JA) Storage temperature(TS) Lead temperature & time LC1555CC3TR□□□ 50V 125C -40C -85C 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 500mW 25C/W 1,”Z” stands for week 26,” A ” stands for week 27,” Z ” stands for week 52. 90C/W -40C -150C 260C,10S Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. RECOMMENDED WORK CONDITIONS Item Input voltage range Ambient temperature Min Recommended Max. Unit 3 40 V -40 85 C www.leadchip.com.cn 2 Your final power solution LC1555 ELECTRICAL CHARACTERISTICS (Test Conditions: Cin=1uF, Cout=1uF, TA=25C, Unless Otherwise Specified) Symbol Vin Vout Iout(Max.) Dropout Voltage Parameter Vout>1.5V Output Voltage Vout≤1.5V Maximum Output Current Input-Output Voltage Differential Line Regulation Vout Load Regulation Vout T  Vout Min Input Voltage Vout Vin  Vout Iq Conditions Quiescent Current Output Voltage Temperature Coefficient Type 3 Vout x0.98 Vout -0.03 150 Vin-Vout=1V 1mA≤Iout≤30mA Vin-Vout=1V Vout Max Units 40 Vout X1.02 Vout +0.03 V V mA Iout=100mA, Vout = 5V 400 Iout=10mA, 4V≤Vin≤40V 0.2 0.3 %/V 20 40 mV 2.5 5 uA Vin=Set Vout+1V 1mA≤Iout≤100mA Vin=Set Vout+1V Iout=10mA Thermal Shutdown mV ±100 ppm/C 130 °C BLOCK DIAGRAM VIN VOUT Current Limit + OTP - Fast Response Voltage Reference GND EXPLANATION LC1555 is a series of low dropout voltage and low power consumption 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 when load current is more than 180mA. LC1555 uses trimming technique to assure the accuracy of output value within±2%, at the same time, temperature compensation is elaborately considered in this chip, which makes LC1555’s temperature coefficient within ±100ppm/℃。 www.leadchip.com.cn 3 Your final power solution LC1555 TYPICAL PERFORMANCE CHARACTERISTICS Line Regulation Load Regulation 6.0 6.0 5.5 5.0 5.0 4.5 4.0 3.5 Vout(V) Vout(V) 4.0 3.0 2.5 2.0 2.0 Vin=6V Vin=8V Vin=12V Vin=25V Vin=40V 1.5 1.0 0.5 1.0 Iout=10mA 0.0 0.0 0.00 0.05 0.10 3.0 0 0.15 5 10 15 20 Iout(A) Vin(V) Dropout Iq 25 30 35 40 250 700 Vout=5V Vout=5V 600 200 Iq(uA) Dropout(mV) 500 400 300 150 100 200 50 100 0 0 0 50 100 150 0 Iout(mA) 5 10 15 20 25 30 35 40 Vin(V) Current Limit 6.0 Vout(V) 5.0 4.0 3.0 2.0 1.0 Vin=12V 0.0 0 100 200 300 Iout(mA) www.leadchip.com.cn 4 Your final power solution LC1555 Line transient response Load transient response Vin=6V~7V, Iout=10mA Ch1—Vin, Ch2—Vout Vin=12V, Iout=10mA~100mA Ch2—Vout, Ch4—Iout PACKAGE LINE Package SOT-89-3 Devices per reel 1000Pcs Package dimension: Unit: mm www.leadchip.com.cn 5 Your final power solution