LC3030 High Efficiency Low Noise PFM Step-up DC/DC Converter DESCRIPTION FEATURES LC3030 series are CMOS-based PFM step-up DC- Deliver 200mA at 3.3V output voltage with DC Converter. The converter can start up by 1.8V input voltage supply voltage as low as 0.8V, and capable of Low start-up voltage (when the output delivering maximum 200mA output current at current is 1mA)-----------------------------0.8V 3.3V output with 1.8V input Voltage. Quiescent Output voltage can be adjusted from 2.5V current drawn from power source is as low as 6.0V (In 0.1V step) 5.5uA. All of these features make LC3030 series Output voltage accuracy ---------------2 be suitable for the portable devices, which are Low temperature-drift coefficient of the supplied by a single battery to four-cell batteries. output voltage-------------------- 100ppm/ Only three external components are To reduce the noise caused by the switch necessary: an inductor, a Schottky diode and regulator, LC3030 is well considerate in circuit an output filter capacitor design and manufacture, so that the interferer to High power conversion efficiency-----85 other circuits by the device is reduced greatly. Low quiescent current drawn from power source-------------------------------------<5.5uA LC3030 integrates stable reference circuits and trimming technology, so it can afford high precision and low temperature-drift coefficient of the output voltage. APPLICATIONS LC3030 is available in SOT-23-3, TSOT-23-3, SOT- Power Source for PDA, DSC, MP3 Player, 23-5, SOT-89-3 and TO-92 packages, which are PB Electronic toy and wireless mouse free. And in 5-pin packages, such as SOT-23-5, the Power Source for a Single or Dual-cell device can be switch on or off easily by CE pin, to Battery-Powered Equipments minimize the standby supply current. Power Source for LED TYPICAL APPLICATION ELECTRICAL CHARACTERISTICS LC3030CC3TR33 Output Voltage VS. Output Current Vin=0.9V Vin=1.0V Vin=1.2V Vin=1.5V Vin=1.8V Vin=2.0V Vin=2.5V 3.35 3.30 3.25 3.20 3.15 3.10 3.05 3.00 0 50 100 150 200 250 300 350 400 450 500 Output Current(mA) www.leadchip.com.cn 1 Your final power solution Output Voltage(V) LC3030 ORDERING INFORMATION MARKING INFORMATION LC3030 1 2 3 4 Product classification LC3030CB3TR Marking Code Description 30:product Temperature&Rohs: 1 code C: -40~85 C, Pb Free Rohs Std. 30XX Package type: XX: output B3: SOT-23-3 voltage B3A: TSOT-23-3 2 Product classification LC3030CB3ATR B5: SOT-23-5 C3: SOT-89-3 Marking H: TO-92 30:product Packing type: code 3 TR: Tape&Reel (Standard) 30XX XX: output BG: Bag (TO-92) voltage Output voltage: e.g. 25=2.5V Product classification LC3030CB5TR 4 33=3.3V Marking 60=6.0V 30:product code ABSOLUTE MAXIMUM RATING 30XX XX: output Parameter Value voltage Input voltage range -0.3V-12V Product classification LC3030CC3TR Input voltage -0.3V-(Vout+0.3) Marking CE pin voltage -0.3V-(Vout+0.3) Lx pin output current 0.7A LA: product Operating junction temperature (T ) code 125C J XX: output Ambient temperature (T ) -40C -85C A voltage SOT-23-3 250mW LAXX TSOT-23-3 250mW YY: LOT NO. YYBZZ Power dissipation SOT-23-5 250mW B: FAB code SOT-89-3 500mW ZZ: date TO-92 500mW code Storage temperature (T ) -40C -150C S Product classification LC3030CHBG Lead temperature & time 260C, 10S Marking LA: product Note: code Exceed these limits to damage to the device. XX: output Exposure to absolute maximum rating conditions may voltage affect device reliability. LAXX YY: LOT NO. YYBZZ PIN CONFIGURATION B: FAB code ZZ: date Chip enable (active high) CE code GND Ground Output feedback pin, power supply for OUT internal Lx Switching pin No connection NC www.leadchip.com.cn 2 Your final power solution