LTC1983-3/LTC1983-5 100mA Regulated Charge-Pump Inverters in ThinSOT Fea T Descrip T n Fixed Output Voltages: 3V, 5V or Low Noise V The LTC 1983-3 and LTC1983-5 are inverting charge IN to V Inverted Output pump DC/DC converters that produce negative regulated IN n 4% Output Voltage Accuracy outputs. The parts require only three tiny external capaci- n Low Quiescent Current: 25A tors and can provide up to 100mA of output current. The n 100mA Output Current Capability devices can operate in open loop mode (creating a V IN n 2.3V to 5.5V Operating Voltage Range supply) or regulated output mode depending on the input n Internal 900kHz Oscillator supply voltage and the output current. n Zero Current Shutdown The LTC1983-3/LTC1983-5 have many useful features for n Short-Circuit and Over-Temperature Protected portable applications including very low quiescent current TM n Low Profile (1mm) ThinSOT Package (25A typical) and a zero current shutdown mode pro- grammed through the SHDN pin. a T The LTC1983-3/LTC1983-5 are over-temperature and n 3V Generation in Single-Supply Systems short-circuit protected. The parts are available in a 6-pin n Portable Equipment low profile (1mm) ThinSOT package. n LCD Bias Supplies L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks n and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the GaAs FET Bias Supplies property of their respective owners. Typical a T 3V at 100mA DC/DC Converter V vs I OUT OUT 3.3 V V = 3V IN OUT V V IN OUT 3V TO 5.5V I = UP TO 100mA OUT C IN 3.2 C OUT LTC1983-3 10F 10F SHDN GND OFF ON 3.1 + V = 5V IN C C 3.0 2.9 1983-3 TA01 V = 3.3V C FLY IN 1F 2.8 C : TAIYO YUDEN LMK212BJ105 FLY C , C : TAIYO YUDEN JMK316BJ106ML IN OUT 2.7 0 20 40 60 80 100 I (mA) OUT 1983 TA02 1983fc 1 For more information www.linear.com/LTC1983-3 V (V) OUT ion pplica ions pplica ion uresLTC1983-3/LTC1983-5 a T e Maxi Mu M r a T p c F T (Note 1) V to GND ................................................... 0.3V to 6V IN SHDN Voltage .............................................. 0.3V to 6V TOP VIEW V to GND (LTC1983-3) ...................0.2V to V Max OUT OUT V 1 6 SHDN CC V to GND (LTC1983-5)...................0.2V to V Max OUT OUT V 2 5 GND OUT I Max ..............................................................125mA OUT + C 3 4 C Output Short-Circuit Duration .......................... Indefinite S6 PACKAGE Operating Temperature Range (Note 2)....40C to 85C 6-LEAD PLASTIC SOT-23 T = 125C, = 256C/W JMAX JA Storage Temperature Range ..................65C to 125C Lead Temperature (Soldering, 10 sec) ...................300C o r D i n F Ma T